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  • Cannot use WCF service from windows mobile 5: no endpoint found.

    - by sweeney
    Hi All, I'm trying to figure out how to call a WCF service from a windows smart phone. I have a very simple smartphone console app, which does nothing but launch and make 1 call to the service. The service simply returns a string. I am able to instantiate the proxy class but when i call the method it throws an exception: There was no endpoint listening at http://mypcname/Service1.svc/basic that could accept the message. This is often caused by an incorrect address or SOAP action. See InnerException, if present, for more details. The inner exception: Could not establish connection to network. I've tried to follow this tutorial on setting up services with windows mobile. I've used the NetCFSvcUtil to create the proxy classes. I have the service running on IIS on my machine and had the Util consume the wsdl from that location. I've created a basic http binding as suggested in the article and i think i've pointed the proxy at the correct uri. Here some sections of relevant code in case it's helpful to see. If anyone has any suggestions, i'd really appreciate it. I'm not sure what else i can poke at to get this thing to work. Thanks! Client, (Program.cs): using System; using System.Linq; using System.Collections.Generic; using System.Text; namespace WcfPoC { class Program { static void Main(string[] args) { try { Service1Client proxy = new Service1Client(); string test = proxy.GetData(5); } catch (Exception e) { Console.WriteLine(e.Message); Console.WriteLine(e.InnerException.Message); Console.WriteLine(e.StackTrace); } } } } Client Proxy excerpt (Service1.cs): [System.Diagnostics.DebuggerStepThroughAttribute()] [System.CodeDom.Compiler.GeneratedCodeAttribute("System.ServiceModel", "3.0.0.0")] public partial class Service1Client : Microsoft.Tools.ServiceModel.CFClientBase<IService1>, IService1 { //modified according to the walk thru linked above... public static System.ServiceModel.EndpointAddress EndpointAddress = new System.ServiceModel.EndpointAddress("http://boston7/Service1.svc/basic"); /* *a bunch of code create by the svc util - left unmodified */ } The Service (Service1.svc.cs): using System; using System.Collections.Generic; using System.Linq; using System.Runtime.Serialization; using System.ServiceModel; using System.Text; namespace WcfService1 { // NOTE: If you change the class name "Service1" here, you must also update the reference to "Service1" in Web.config and in the associated .svc file. public class Service1 : IService1 { public string GetData(int value) //i'm calling this one... { return string.Format("You entered: {0}", value); } public CompositeType GetDataUsingDataContract(CompositeType composite) { if (composite.BoolValue) { composite.StringValue += "Suffix"; } return composite; } } } Service Interface (IService1.cs): using System; using System.Collections.Generic; using System.Linq; using System.Runtime.Serialization; using System.ServiceModel; using System.Text; namespace WcfService1 { // NOTE: If you change the interface name "IService1" here, you must also update the reference to "IService1" in Web.config. [ServiceContract] public interface IService1 { [OperationContract] string GetData(int value); //this is the call im using... [OperationContract] CompositeType GetDataUsingDataContract(CompositeType composite); // TODO: Add your service operations here } // Use a data contract as illustrated in the sample below to add composite types to service operations. [DataContract] public class CompositeType { /* * ommitted - not using this type anyway... */ } } Web.config excerpt: <services> <service name="WcfService1.Service1" behaviorConfiguration="WcfService1.Service1Behavior"> <!-- Service Endpoints --> <endpoint address="" binding="basicHttpBinding" contract="WcfService1.IService1"/> <endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange"/> <host> <baseAddresses> <add baseAddress="http://boston7/" /> </baseAddresses> </host> </service> </services>

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  • Mixed-mode C++/CLI crashing: heap corruption in atexit (static destructor registration)

    - by thaimin
    I am working on deploying a program and the codebase is a mixture of C++/CLI and C#. The C++/CLI comes in all flavors: native, mixed (/clr), and safe (/clr:safe). In my development environment I create a DLL of all the C++/CLI code and reference that from the C# code (EXE). This method works flawlessly. For my releases that I want to release a single executable (simply stating that "why not just have a DLL and EXE separate?" is not acceptable). So far I have succeeded in compiling the EXE with all the different sources. However, when I run it I get the "XXXX has stopped working" dialog with options to Check online, Close and Debug. The problem details are as follows: Problem Event Name: APPCRASH Fault Module Name: StackHash_8d25 Fault Module Version: 6.1.7600.16559 Fault Module Timestamp: 4ba9b29c Exception Code: c0000374 Exception Offset: 000cdc9b OS Version: 6.1.7600.2.0.0.256.48 Locale ID: 1033 Additional Information 1: 8d25 Additional Information 2: 8d25552d834e8c143c43cf1d7f83abb8 Additional Information 3: 7450 Additional Information 4: 74509ce510cd821216ce477edd86119c If I debug and send it to Visual Studio, it reports: Unhandled exception at 0x77d2dc9b in XXX.exe: A heap has been corrupted Choosing break results in it stopping at ntdll.dll!77d2dc9b() with no additional information. If I tell Visual Studio to continue, the program starts up fine and seems to work without incident, probably since a debugger is now attached. What do you make of this? How do I avoid this heap corruption? The program seems to work fine except for this. My abridged compilation script is as follows (I have omitted my error checking for brevity): @set TARGET=x86 @set TARGETX=x86 @set OUT=%TARGETX% @call "%VS90COMNTOOLS%\..\..\VC\vcvarsall.bat" %TARGET% @set WIMGAPI=C:\Program Files\Windows AIK\SDKs\WIMGAPI\%TARGET% set CL=/Zi /nologo /W4 /O2 /GS /EHa /MD /MP /D NDEBUG /D _UNICODE /D UNICODE /D INTEGRATED /Fd%OUT%\ /Fo%OUT%\ set INCLUDE=%WIMGAPI%;%INCLUDE% set LINK=/nologo /LTCG /CLRIMAGETYPE:IJW /MANIFEST:NO /MACHINE:%TARGETX% /SUBSYSTEM:WINDOWS,6.0 /OPT:REF /OPT:ICF /DEFAULTLIB:msvcmrt.lib set LIB=%WIMGAPI%;%LIB% set CSC=/nologo /w:4 /d:INTEGRATED /o+ /target:module :: Compiling resources omitted @set CL_NATIVE=/c /FI"stdafx-native.h" @set CL_MIXED=/c /clr /LN /FI"stdafx-mixed.h" @set CL_PURE=/c /clr:safe /LN /GL /FI"stdafx-pure.h" @set NATIVE=... @set MIXED=... @set PURE=... cl %CL_NATIVE% %NATIVE% cl %CL_MIXED% %MIXED% cl %CL_PURE% %PURE% link /LTCG /NOASSEMBLY /DLL /OUT:%OUT%\core.netmodule %OUT%\*.obj csc %CSC% /addmodule:%OUT%\core.netmodule /out:%OUT%\GUI.netmodule /recurse:*.cs link /FIXED /ENTRY:GUI.Program.Main /OUT:%OUT%\XXX.exe ^ /ASSEMBLYRESOURCE:%OUT%\core.resources,XXX.resources,PRIVATE /ASSEMBLYRESOURCE:%OUT%\GUI.resources,GUI.resources,PRIVATE ^ /ASSEMBLYMODULE:%OUT%\core.netmodule %OUT%\gui.res %OUT%\*.obj %OUT%\GUI.netmodule Update 1 Upon compiling this with debug symbols and trying again, I do in fact get more information. The call stack is: msvcr90d.dll!_msize_dbg(void * pUserData, int nBlockUse) Line 1511 + 0x30 bytes msvcr90d.dll!_dllonexit_nolock(int (void)* func, void (void)* * * pbegin, void (void)* * * pend) Line 295 + 0xd bytes msvcr90d.dll!__dllonexit(int (void)* func, void (void)* * * pbegin, void (void)* * * pend) Line 273 + 0x11 bytes XXX.exe!_onexit(int (void)* func) Line 110 + 0x1b bytes XXX.exe!atexit(void (void)* func) Line 127 + 0x9 bytes XXX.exe!`dynamic initializer for 'Bytes::Null''() Line 7 + 0xa bytes mscorwks.dll!6cbd1b5c() [Frames below may be incorrect and/or missing, no symbols loaded for mscorwks.dll] ... The line of my code that 'causes' this (dynamic initializer for Bytes::Null) is: Bytes Bytes::Null; In the header that is declared as: class Bytes { public: static Bytes Null; } I also tried doing a global extern in the header like so: extern Bytes Null; // header Bytes Null; // cpp file Which failed in the same way. It seems that the CRT atexit function is responsible, being inadvertently required due to the static initializer. Fix As Ben Voigt pointed out the use of any CRT functions (including native static initializers) requires proper initialization of the CRT (which happens in mainCRTStartup, WinMainCRTStartup, or _DllMainCRTStartup). I have added a mixed C++/CLI file that has a C++ main or WinMain: using namespace System; [STAThread] // required if using an STA COM objects (such as drag-n-drop or file dialogs) int main() { // or "int __stdcall WinMain(void*, void*, wchar_t**, int)" for GUI applications array<String^> ^args_orig = Environment::GetCommandLineArgs(); int l = args_orig->Length - 1; // required to remove first argument (program name) array<String^> ^args = gcnew array<String^>(l); if (l > 0) Array::Copy(args_orig, 1, args, 0, l); return XXX::CUI::Program::Main(args); // return XXX::GUI::Program::Main(args); } After doing this, the program now gets a little further, but still has issues (which will be addressed elsewhere): When the program is solely in C# it works fine, along with whenever it is just calling C++/CLI methods, getting C++/CLI properties, and creating managed C++/CLI objects Events added by C# into the C++/CLI code never fire (even though they should) One other weird error is that an exception happens is a InvalidCastException saying can't cast from X to X (where X is the same as X...) However since the heap corruption is fixed (by getting the CRT initialized) the question is done.

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  • WCF- Large Data

    - by Pinu
    I have a WCF Web Service with basicHTTPBinding , the server side the transfer mode is streamedRequest as the client will be sending us large file in the form of memory stream. But on client side when i use transfer mode as streamedRequest its giving me a this errro "The remote server returned an error: (400) Bad Request" And when i look in to trace information , i see this as the error message Exception: There is a problem with the XML that was received from the network. See inner exception for more details. InnerException: The body of the message cannot be read because it is empty. I am able to send up to 5MB of data using trasfermode as buffered , but it will effect the performance of my web service in the long run , if there are many clients who are trying to access the service in buffered transfer mode. SmartConnect.Service1Client Serv = new SmartConnectClient.SmartConnect.Service1Client(); SmartConnect.OrderCertMailResponse OrderCert = new SmartConnectClient.SmartConnect.OrderCertMailResponse(); OrderCert.UserID = "abcd"; OrderCert.Password = "7a80f6623"; OrderCert.SoftwareKey = "90af1"; string applicationDirectory = @"\\inid\utty\Bran"; byte[] CertMail = File.ReadAllBytes(applicationDirectory + @"\5mb_test.zip"); MemoryStream str = new MemoryStream(CertMail); //OrderCert.Color = true; //OrderCert.Duplex = false; //OrderCert.FirstClass = true; //OrderCert.File = str; //OrderCert.ReturnAddress1 = "Test123"; //OrderCert.ReturnAddress2 = "Test123"; //OrderCert.ReturnAddress3 = "Test123"; //OrderCert.ReturnAddress4 = "Test123"; OrderCert.File = str; //string OrderNumber = ""; //string Password = OrderCert.Password; //int ReturnCode = 0; //string ReturnMessage = ""; //string SoftwareKey = OrderCert.SoftwareKey; //string UserID = OrderCert.UserID; //OrderCert.File = str; MemoryStream FileStr = str; Serv.OrderCertMail(OrderCert); // Serv.OrderCertMail(ref OrderNumber, ref Password, ref ReturnCode, ref ReturnMessage, ref SoftwareKey, ref UserID, ref FileStr ); lblON.Text = OrderCert.OrderNumber; Serv.Close(); // My Web Service - Service Contract [OperationContract] OrderCertMailResponse OrderCertMail(OrderCertMailResponse OrderCertMail); [MessageContract] public class OrderCertMailResponse { string userID = ""; string password = ""; string softwareID = ""; MemoryStream file = null; //MemoryStream str = null; [MessageHeader] //[DataMember] public string UserID { get { return userID; } set { userID = value; } } [MessageHeader] //[DataMember] public string Password { get { return password; } set { password = value; } } [MessageHeader] //[DataMember] public string SoftwareKey { get { return softwareID; } set { softwareID = value; } } [MessageBodyMember] // [DataMember] public MemoryStream File { get { return file; } set { file = value; } } [MessageHeader] //[DataMember] public string ReturnMessage; [MessageHeader] //[DataMember] public int ReturnCode; [MessageHeader] public string OrderNumber; //// Control file fields //[MessageHeader] ////[DataMember] //public string ReturnAddress1; //[MessageHeader] ////[DataMember] //public string ReturnAddress2; //[MessageHeader] ////[DataMember] //public string ReturnAddress3; //[MessageHeader] ////[DataMember] //public string ReturnAddress4; //[MessageHeader] ////[DataMember] //public bool FirstClass; //[MessageHeader] ////[DataMember] //public bool Color; //[MessageHeader] ////[DataMember] //public bool Duplex; } [ServiceBehavior(IncludeExceptionDetailInFaults = true)] public class Service1 : IService1 { public OrderCertMailResponse OrderCertMail(OrderCertMailResponse OrderCertMail) { OrderService CertOrder = new OrderService(); ClientUserInfo Info = new ClientUserInfo(); ControlFileInfo Control = new ControlFileInfo(); //Info.Password = "f2496623"; // hard coded password for development testing purposes //Info.SoftwareKey = "6dbb71"; // hard coded software key this is a developement software key //Info.UserName = "sdfs"; // hard coded UserID - for testing Info.UserName = OrderCertMail.UserID.ToString(); Info.Password = OrderCertMail.Password.ToString(); Info.SoftwareKey = OrderCertMail.SoftwareKey.ToString(); //Control.ReturnAddress1 = OrderCertMail.ReturnAddress1; //Control.ReturnAddress2 = OrderCertMail.ReturnAddress2; //Control.ReturnAddress3 = OrderCertMail.ReturnAddress3; //Control.ReturnAddress4 = OrderCertMail.ReturnAddress4; //Control.CertMailFirstClass = OrderCertMail.FirstClass; //Control.CertMailColor = OrderCertMail.Color; //Control.CertMailDuplex = OrderCertMail.Duplex; //byte[] CertFile = new byte[0]; //byte[] CertFile = null; //string applicationDirectory = @"\\intrepid\utility\Bryan"; // byte[] CertMailFile = File.ReadAllBytes(applicationDirectory + @"\3mb_test.zip"); //MemoryStream str = new MemoryStream(CertMailFile); OrderCertMailResponseClass OrderCertResponse = CertOrder.OrderCertmail(Info,Control,OrderCertMail.File); OrderCertMail.ReturnMessage = OrderCertResponse.ReturnMessage.ToString(); OrderCertMail.ReturnCode = Convert.ToInt32(OrderCertResponse.ReturnCode.ToString()); OrderCertMail.OrderNumber = OrderCertResponse.OrderNumber; return OrderCertMail; }

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  • Am I going about this the right way?

    - by Psytronic
    Hey Guys, I'm starting a WPF project, and just finished the base of the UI, it seems very convoluted though, so I'm not sure if I've gone around laying it out in the right way. I don't want to get to start developing the back-end and realise that I've done the front wrong, and make life harder for myself. Coming from a background of <DIV's and CSS to style this is a lot different, and really want to get it right from the start. Essentially it's a one week calendar (7 days, Mon-Sunday, defaulting to the current week.) Which will eventually link up to a DB and if I have an appointment for something on this day it will show it in the relevant day. I've opted for a Grid rather than ListView because of the way it will work I will not be binding the results to a collection or anything along those lines. Rather I will be filling out a Combo box within the canvas for each day (yet to be placed in the code) for each event and on selection it will show me further details. XAML: <Window x:Class="WOW_Widget.Window1" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:s="clr-namespace:System;assembly=mscorlib" xmlns:Extensions="clr-namespace:WOW_Widget" DataContext="{Binding RelativeSource={RelativeSource Self}}" Title="Window1" Height="239" Width="831" <Window.Resources <LinearGradientBrush x:Key="NormalBrush" StartPoint="0,0" EndPoint="0,1" <GradientBrush.GradientStops <GradientStopCollection <GradientStop Offset="1.0" Color="White"/ <GradientStop Offset="0.0" Color="LightSlateGray"/ </GradientStopCollection </GradientBrush.GradientStops </LinearGradientBrush <LinearGradientBrush x:Key="grdDayHeader" StartPoint="0,0" EndPoint="0,1" <GradientBrush.GradientStops <GradientStopCollection <GradientStop Offset="0.0" Color="Peru" / <GradientStop Offset="1.0" Color="White" / </GradientStopCollection </GradientBrush.GradientStops </LinearGradientBrush <LinearGradientBrush x:Key="grdToday" StartPoint="0,0" EndPoint="0,1" <GradientBrush.GradientStops <GradientStopCollection <GradientStop Offset="0.0" Color="LimeGreen"/ <GradientStop Offset="1.0" Color="DarkGreen" / </GradientStopCollection </GradientBrush.GradientStops </LinearGradientBrush <Style TargetType="{x:Type GridViewColumnHeader}" <Setter Property="Background" Value="Khaki" / </Style <Style x:Key="DayHeader" TargetType="{x:Type Label}" <Setter Property="Background" Value="{StaticResource grdDayHeader}" / <Setter Property="Width" Value="111" / <Setter Property="Height" Value="25" / <Setter Property="HorizontalContentAlignment" Value="Center" / </Style <Style x:Key="DayField" <Setter Property="Canvas.Width" Value="111" / <Setter Property="Canvas.Height" Value="60" / <Setter Property="Canvas.Background" Value="White" / </Style <Style x:Key="Today" <Setter Property="Canvas.Background" Value="{StaticResource grdToday}" / </Style <Style x:Key="CalendarColSpacer" <Setter Property="Canvas.Width" Value="1" / <Setter Property="Canvas.Background" Value="Black" / </Style <Style x:Key="CalendarRowSpacer" <Setter Property="Canvas.Height" Value="1" / <Setter Property="Canvas.Background" Value="Black" / </Style </Window.Resources <Grid Background="{StaticResource NormalBrush}" <Border BorderBrush="Black" BorderThickness="1" Width="785" Height="86" Margin="12,12,12,104" <Canvas Height="86" Width="785" VerticalAlignment="Top" <Grid <Grid.ColumnDefinitions <ColumnDefinition / <ColumnDefinition / <ColumnDefinition / <ColumnDefinition / <ColumnDefinition / <ColumnDefinition / <ColumnDefinition / <ColumnDefinition / <ColumnDefinition / <ColumnDefinition / <ColumnDefinition / <ColumnDefinition / <ColumnDefinition / </Grid.ColumnDefinitions <Grid.RowDefinitions <RowDefinition / <RowDefinition / <RowDefinition / </Grid.RowDefinitions <Label Grid.Column="0" Grid.Row="0" Content="Monday" Style="{StaticResource DayHeader}" / <Canvas Grid.Column="1" Grid.RowSpan="3" Grid.Row="0" Style="{StaticResource CalendarColSpacer}" / <Label Grid.Column="2" Grid.Row="0" Content="Tuesday" Style="{StaticResource DayHeader}" / <Canvas Grid.Column="3" Grid.RowSpan="3" Grid.Row="0" Style="{StaticResource CalendarColSpacer}" / <Label Grid.Column="4" Grid.Row="0" Content="Wednesday" Style="{StaticResource DayHeader}" / <Canvas Grid.Column="5" Grid.RowSpan="3" Grid.Row="0" Style="{StaticResource CalendarColSpacer}" / <Label Grid.Column="6" Grid.Row="0" Content="Thursday" Style="{StaticResource DayHeader}" / <Canvas Grid.Column="7" Grid.RowSpan="3" Grid.Row="0" Style="{StaticResource CalendarColSpacer}" / <Label Grid.Column="8" Grid.Row="0" Content="Friday" Style="{StaticResource DayHeader}" / <Canvas Grid.Column="9" Grid.RowSpan="3" Grid.Row="0" Style="{StaticResource CalendarColSpacer}" / <Label Grid.Column="10" Grid.Row="0" Content="Saturday" Style="{StaticResource DayHeader}" / <Canvas Grid.Column="11" Grid.RowSpan="3" Grid.Row="0" Style="{StaticResource CalendarColSpacer}" / <Label Grid.Column="12" Grid.Row="0" Content="Sunday" Style="{StaticResource DayHeader}" / <Canvas Grid.Column="0" Grid.ColumnSpan="13" Grid.Row="1" Style="{StaticResource CalendarRowSpacer}" / <Canvas Grid.Column="0" Grid.Row="2" Margin="0" Style="{StaticResource DayField}" <Label Name="lblMondayDate" / </Canvas <Canvas Grid.Column="2" Grid.Row="2" Margin="0" Style="{StaticResource DayField}" <Label Name="lblTuesdayDate" / </Canvas <Canvas Grid.Column="4" Grid.Row="2" Margin="0" Style="{StaticResource DayField}" <Label Name="lblWednesdayDate" / </Canvas <Canvas Grid.Column="6" Grid.Row="2" Margin="0" Style="{StaticResource DayField}" <Label Name="lblThursdayDate" / </Canvas <Canvas Grid.Column="8" Grid.Row="2" Margin="0" Style="{StaticResource DayField}" <Label Name="lblFridayDate" / </Canvas <Canvas Grid.Column="10" Grid.Row="2" Margin="0" Style="{StaticResource DayField}" <Label Name="lblSaturdayDate" / </Canvas <Canvas Grid.Column="12" Grid.Row="2" Margin="0" Style="{StaticResource DayField}" <Label Name="lblSundayDate" / </Canvas </Grid </Canvas </Border <Canvas Height="86" HorizontalAlignment="Right" Margin="0,0,12,12" Name="canvas1" VerticalAlignment="Bottom" Width="198"</Canvas </Grid </Window CS: public partial class Window1 : Window { private DateTime today = new DateTime(); private Label[] Dates = new Label[7]; public Window1() { DateTime start = today = DateTime.Now; int day = (int)today.DayOfWeek; while (day != 1) { start = start.Subtract(new TimeSpan(1, 0, 0, 0)); day--; } InitializeComponent(); Dates[0] = lblMondayDate; Dates[1] = lblTuesdayDate; Dates[2] = lblWednesdayDate; Dates[3] = lblThursdayDate; Dates[4] = lblFridayDate; Dates[5] = lblSaturdayDate; Dates[6] = lblSundayDate; FillWeek(start); } private void FillWeek(DateTime start) { for (int d = 0; d < Dates.Length; d++) { TimeSpan td = new TimeSpan(d, 0, 0, 0); DateTime _day = start.Add(td); if (_day.Date == today.Date) { Canvas dayCanvas = (Canvas)Dates[d].Parent; dayCanvas.Style = (Style)this.Resources["Today"]; } Dates[d].Content = (int)start.Add(td).Day; } } } Thanks for any tips you guys can give Psytronic

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  • What's the best name for a non-mutating "add" method on an immutable collection?

    - by Jon Skeet
    Sorry for the waffly title - if I could come up with a concise title, I wouldn't have to ask the question. Suppose I have an immutable list type. It has an operation Foo(x) which returns a new immutable list with the specified argument as an extra element at the end. So to build up a list of strings with values "Hello", "immutable", "world" you could write: var empty = new ImmutableList<string>(); var list1 = empty.Foo("Hello"); var list2 = list1.Foo("immutable"); var list3 = list2.Foo("word"); (This is C# code, and I'm most interested in a C# suggestion if you feel the language is important. It's not fundamentally a language question, but the idioms of the language may be important.) The important thing is that the existing lists are not altered by Foo - so empty.Count would still return 0. Another (more idiomatic) way of getting to the end result would be: var list = new ImmutableList<string>().Foo("Hello"); .Foo("immutable"); .Foo("word"); My question is: what's the best name for Foo? EDIT 3: As I reveal later on, the name of the type might not actually be ImmutableList<T>, which makes the position clear. Imagine instead that it's TestSuite and that it's immutable because the whole of the framework it's a part of is immutable... (End of edit 3) Options I've come up with so far: Add: common in .NET, but implies mutation of the original list Cons: I believe this is the normal name in functional languages, but meaningless to those without experience in such languages Plus: my favourite so far, it doesn't imply mutation to me. Apparently this is also used in Haskell but with slightly different expectations (a Haskell programmer might expect it to add two lists together rather than adding a single value to the other list). With: consistent with some other immutable conventions, but doesn't have quite the same "additionness" to it IMO. And: not very descriptive. Operator overload for + : I really don't like this much; I generally think operators should only be applied to lower level types. I'm willing to be persuaded though! The criteria I'm using for choosing are: Gives the correct impression of the result of the method call (i.e. that it's the original list with an extra element) Makes it as clear as possible that it doesn't mutate the existing list Sounds reasonable when chained together as in the second example above Please ask for more details if I'm not making myself clear enough... EDIT 1: Here's my reasoning for preferring Plus to Add. Consider these two lines of code: list.Add(foo); list.Plus(foo); In my view (and this is a personal thing) the latter is clearly buggy - it's like writing "x + 5;" as a statement on its own. The first line looks like it's okay, until you remember that it's immutable. In fact, the way that the plus operator on its own doesn't mutate its operands is another reason why Plus is my favourite. Without the slight ickiness of operator overloading, it still gives the same connotations, which include (for me) not mutating the operands (or method target in this case). EDIT 2: Reasons for not liking Add. Various answers are effectively: "Go with Add. That's what DateTime does, and String has Replace methods etc which don't make the immutability obvious." I agree - there's precedence here. However, I've seen plenty of people call DateTime.Add or String.Replace and expect mutation. There are loads of newsgroup questions (and probably SO ones if I dig around) which are answered by "You're ignoring the return value of String.Replace; strings are immutable, a new string gets returned." Now, I should reveal a subtlety to the question - the type might not actually be an immutable list, but a different immutable type. In particular, I'm working on a benchmarking framework where you add tests to a suite, and that creates a new suite. It might be obvious that: var list = new ImmutableList<string>(); list.Add("foo"); isn't going to accomplish anything, but it becomes a lot murkier when you change it to: var suite = new TestSuite<string, int>(); suite.Add(x => x.Length); That looks like it should be okay. Whereas this, to me, makes the mistake clearer: var suite = new TestSuite<string, int>(); suite.Plus(x => x.Length); That's just begging to be: var suite = new TestSuite<string, int>().Plus(x => x.Length); Ideally, I would like my users not to have to be told that the test suite is immutable. I want them to fall into the pit of success. This may not be possible, but I'd like to try. I apologise for over-simplifying the original question by talking only about an immutable list type. Not all collections are quite as self-descriptive as ImmutableList<T> :)

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  • Driving me INSANE: Unable to Retrieve Metadata for

    - by Loren
    I've been spending the past 3 days trying to fix this problem I'm encountering - it's driving me insane... I'm not quite sure what is causing this bug - here are the details: MVC4 + Entity Framework 4.4 + MySql + POCO/Code First I'm setting up the above configuration .. here are my classes: namespace BTD.DataContext { public class BTDContext : DbContext { public BTDContext() : base("name=BTDContext") { } protected override void OnModelCreating(DbModelBuilder modelBuilder) { base.OnModelCreating(modelBuilder); //modelBuilder.Conventions.Remove<System.Data.Entity.Infrastructure.IncludeMetadataConvention>(); } public DbSet<Product> Products { get; set; } public DbSet<ProductImage> ProductImages { get; set; } } } namespace BTD.Data { [Table("Product")] public class Product { [Key] public long ProductId { get; set; } [DisplayName("Manufacturer")] public int? ManufacturerId { get; set; } [Required] [StringLength(150)] public string Name { get; set; } [Required] [DataType(DataType.MultilineText)] public string Description { get; set; } [Required] [StringLength(120)] public string URL { get; set; } [Required] [StringLength(75)] [DisplayName("Meta Title")] public string MetaTitle { get; set; } [DataType(DataType.MultilineText)] [DisplayName("Meta Description")] public string MetaDescription { get; set; } [Required] [StringLength(25)] public string Status { get; set; } [DisplayName("Create Date/Time")] public DateTime CreateDateTime { get; set; } [DisplayName("Edit Date/Time")] public DateTime EditDateTime { get; set; } } [Table("ProductImage")] public class ProductImage { [Key] public long ProductImageId { get; set; } public long ProductId { get; set; } public long? ProductVariantId { get; set; } [Required] public byte[] Image { get; set; } public bool PrimaryImage { get; set; } public DateTime CreateDateTime { get; set; } public DateTime EditDateTime { get; set; } } } Here is my web.config setup... <connectionStrings> <add name="BTDContext" connectionString="Server=localhost;Port=3306;Database=btd;User Id=root;Password=mypassword;" providerName="MySql.Data.MySqlClient" /> </connectionStrings> The database AND tables already exist... I'm still pretty new with mvc but was using this tutorial The application builds fine.. however when I try to add a controller using Product (BTD.Data) as my model class and BTDContext (BTD.DataContext) as my data context class I receive the following error: Unable to retrieve metadata for BTD.Data.Product using the same DbCompiledModel to create context against different types of database servers is not supported. Instead, create a separate DbCompiledModel for each type of server being used. I am at a complete loss - I've scoured google with almost every different variation of that error message above I can think of but to no avail. Here are the things i can verify... MySql is working properly I'm using MySql Connector version 6.5.4 and have created other ASP.net web forms + entity framework applications with ZERO problems I have also tried including/removing this in my web.config: <system.data> <DbProviderFactories> <remove invariant="MySql.Data.MySqlClient"/> <add name="MySQL Data Provider" invariant="MySql.Data.MySqlClient" description=".Net Framework Data Provider for MySQL" type="MySql.Data.MySqlClient.MySqlClientFactory, MySql.Data, Version=6.5.4.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d" /> </DbProviderFactories> I've literally been working on this bug for days - I'm to the point now that I would be willing to pay someone to solve it.. no joke... I'd really love to use MVC 4 and Razor - I was so excited to get started on this, but now i'm pretty discouraged - I truly appreciate any help/guidance on this! Also note - i'm using Entityframework from Nuget... Another Note I was using the default visual studio template that creates your MVC project with the account pages and other stuff. I JUST removed all references to the added files because they were trying to use the "DefaultConnection" which didn't exist - so i thought those files may be what was causing the error - however still no luck after removing them - I just wanted to let everyone know i'm using the visual studio MVC project template which pre-creates a bunch of files. I will be trying to recreate this all from a blank MVC project which doesn't have those files - i will update this once i test that Other References It appears someone else is having the same issues I am - the only difference is they are using sql server - I tried tweaking all my code to follow the suggestions on this stackoverflow question/answer here but still to no avail

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  • How to manage memory using classes in Objective-C?

    - by Flipper
    This is my first time creating an iPhone App and I am having difficulty with the memory management because I have never had to deal with it before. I have a UITableViewController and it all works fine until I try to scroll down in the simulator. It crashes saying that it cannot allocate that much memory. I have narrowed it down to where the crash is occurring: - (UITableViewCell *)tableView:(UITableView *)aTableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { // Dequeue or create a cell UITableViewCellStyle style = UITableViewCellStyleDefault; UITableViewCell *cell = [aTableView dequeueReusableCellWithIdentifier:@"BaseCell"]; if (!cell) cell = [[[UITableViewCell alloc] initWithStyle:style reuseIdentifier:@"BaseCell"] autorelease]; NSString* crayon; // Retrieve the crayon and its color if (aTableView == self.tableView) { crayon = [[[self.sectionArray objectAtIndex:indexPath.section] objectAtIndex:indexPath.row] getName]; } else { crayon = [FILTEREDKEYS objectAtIndex:indexPath.row]; } cell.textLabel.text = crayon; if (![crayon hasPrefix:@"White"]) cell.textLabel.textColor = [self.crayonColors objectForKey:crayon]; else cell.textLabel.textColor = [UIColor blackColor]; return cell; } Here is the getName method: - (NSString*)getName { return name; } name is defined as: @property (nonatomic, retain) NSString *name; Now sectionArray is an NSMutableArray with instances of a class that I created Term in it. Term has a method getName that returns a NSString*. The problem seems to be the part of where crayon is being set and getName is being called. I have tried adding autorelease, release, and other stuff like that but that just causes the entire app to crash before even launching. Also if I do: cell.textLabel.text = @"test"; //crayon; /*if (![crayon hasPrefix:@"White"]) cell.textLabel.textColor = [self.crayonColors objectForKey:crayon]; else cell.textLabel.textColor = [UIColor blackColor];*/ Then I get no error whatsoever and it all scrolls just fine. Thanks in advance for the help! Edit: Here is the full Log of when I try to run the app and the error it gives when it crashes: [Session started at 2010-12-29 04:23:38 -0500.] [Session started at 2010-12-29 04:23:44 -0500.] GNU gdb 6.3.50-20050815 (Apple version gdb-967) (Tue Jul 14 02:11:58 UTC 2009) Copyright 2004 Free Software Foundation, Inc. GDB is free software, covered by the GNU General Public License, and you are welcome to change it and/or distribute copies of it under certain conditions. Type "show copying" to see the conditions. There is absolutely no warranty for GDB. Type "show warranty" for details. This GDB was configured as "i386-apple-darwin".sharedlibrary apply-load-rules all Attaching to process 1429. gdb-i386-apple-darwin(1430,0x778720) malloc: * mmap(size=1420296192) failed (error code=12) error: can't allocate region ** set a breakpoint in malloc_error_break to debug gdb stack crawl at point of internal error: [ 0 ] /Developer/Platforms/iPhoneSimulator.platform/Developer/usr/libexec/gdb/gdb-i386-apple-darwin (align_down+0x0) [0x1222d8] [ 1 ] /Developer/Platforms/iPhoneSimulator.platform/Developer/usr/libexec/gdb/gdb-i386-apple-darwin (xstrvprintf+0x0) [0x12336c] [ 2 ] /Developer/Platforms/iPhoneSimulator.platform/Developer/usr/libexec/gdb/gdb-i386-apple-darwin (xmalloc+0x28) [0x12358f] [ 3 ] /Developer/Platforms/iPhoneSimulator.platform/Developer/usr/libexec/gdb/gdb-i386-apple-darwin (dyld_info_read_raw_data+0x50) [0x1659af] [ 4 ] /Developer/Platforms/iPhoneSimulator.platform/Developer/usr/libexec/gdb/gdb-i386-apple-darwin (dyld_info_read+0x1bc) [0x168a58] [ 5 ] /Developer/Platforms/iPhoneSimulator.platform/Developer/usr/libexec/gdb/gdb-i386-apple-darwin (macosx_dyld_update+0xbf) [0x168c9c] [ 6 ] /Developer/Platforms/iPhoneSimulator.platform/Developer/usr/libexec/gdb/gdb-i386-apple-darwin (macosx_solib_add+0x36b) [0x169fcc] [ 7 ] /Developer/Platforms/iPhoneSimulator.platform/Developer/usr/libexec/gdb/gdb-i386-apple-darwin (macosx_child_attach+0x478) [0x17dd11] [ 8 ] /Developer/Platforms/iPhoneSimulator.platform/Developer/usr/libexec/gdb/gdb-i386-apple-darwin (attach_command+0x5d) [0x64ec5] [ 9 ] /Developer/Platforms/iPhoneSimulator.platform/Developer/usr/libexec/gdb/gdb-i386-apple-darwin (mi_cmd_target_attach+0x4c) [0x15dbd] [ 10 ] /Developer/Platforms/iPhoneSimulator.platform/Developer/usr/libexec/gdb/gdb-i386-apple-darwin (captured_mi_execute_command+0x16d) [0x17427] [ 11 ] /Developer/Platforms/iPhoneSimulator.platform/Developer/usr/libexec/gdb/gdb-i386-apple-darwin (catch_exception+0x41) [0x7a99a] [ 12 ] /Developer/Platforms/iPhoneSimulator.platform/Developer/usr/libexec/gdb/gdb-i386-apple-darwin (mi_execute_command+0xa9) [0x16f63] /SourceCache/gdb/gdb-967/src/gdb/utils.c:1144: internal-error: virtual memory exhausted: can't allocate 1420296192 bytes. A problem internal to GDB has been detected, further debugging may prove unreliable. The Debugger has exited with status 1.The Debugger has exited with status 1. Here is the backtrace that I get when I set the breakpoint for malloc_error_break: #0 0x0097a68c in objc_msgSend () #1 0x01785bef in -[UILabel setText:] () #2 0x000030e0 in -[TableViewController tableView:cellForRowAtIndexPath:] (self=0x421d760, _cmd=0x29cfad8, aTableView=0x4819600, indexPath=0x42190f0) at /Volumes/Main2/Enayet/TableViewController.m:99 #3 0x016cee0c in -[UITableView(UITableViewInternal) _createPreparedCellForGlobalRow:withIndexPath:] () #4 0x016c6a43 in -[UITableView(UITableViewInternal) _createPreparedCellForGlobalRow:] () #5 0x016d954f in -[UITableView(_UITableViewPrivate) _updateVisibleCellsNow] () #6 0x016d08ff in -[UITableView layoutSubviews] () #7 0x03e672b0 in -[CALayer layoutSublayers] () #8 0x03e6706f in CALayerLayoutIfNeeded () #9 0x03e668c6 in CA::Context::commit_transaction () #10 0x03e6653a in CA::Transaction::commit () #11 0x03e6e838 in CA::Transaction::observer_callback () #12 0x00b00252 in __CFRunLoopDoObservers () #13 0x00aff65f in CFRunLoopRunSpecific () #14 0x00afec48 in CFRunLoopRunInMode () #15 0x00156615 in GSEventRunModal () #16 0x001566da in GSEventRun () #17 0x01689faf in UIApplicationMain () #18 0x00002398 in main (argc=1, argv=0xbfffefb0) at /Volumes/Main2/Enayet/main.m:14

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  • getting database connectivity issue from only one part of my ASP.net project?

    - by Greg
    Hi, Something weird has started happening to my project with Dynamic Data. Suddenly I am now getting connection errors when going to the DD navigation pages, but things work fine on the default DD main page, and also other MVC pages I've added in myself work fine to the database. Any ideas? So in summary if I go to the following web pages: custom URL for my custom controller - this works fine, including getting database data main DD page from root URL - this works fine click on a link to a table maintenance page from the main DD page - GET DATABASE CONNECTIVITY ERROR Some items: * I'm using SQL Server Express 2008 * Doesn't seem to be any debug/error info in VS2010 at all I can see * Web config entry: <add name="Model1Container" connectionString="metadata=res://*/Model1.csdl|res://*/Model1.ssdl|res://*/Model1.msl;provider=System.Data.SqlClient;provider connection string=&quot;Data Source=GREG\SQLEXPRESS_2008;Initial Catalog=greg_development;Integrated Security=True;MultipleActiveResultSets=True&quot;" providerName="System.Data.EntityClient"/> Error: Server Error in '/' Application. A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified) Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.Data.SqlClient.SqlException: A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified) Source Error: Line 39: DropDownList1.Items.Add(new ListItem("[Not Set]", NullValueString)); Line 40: } Line 41: PopulateListControl(DropDownList1); Line 42: // Set the initial value if there is one Line 43: string initialValue = DefaultValue; Source File: U:\My Dropbox\source\ToplogyLibrary\Topology_Web_Dynamic\DynamicData\Filters\ForeignKey.ascx.cs Line: 41 Stack Trace: [SqlException (0x80131904): A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified)] System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection) +5009598 System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning() +234 System.Data.SqlClient.TdsParser.Connect(ServerInfo serverInfo, SqlInternalConnectionTds connHandler, Boolean ignoreSniOpenTimeout, Int64 timerExpire, Boolean encrypt, Boolean trustServerCert, Boolean integratedSecurity) +341 System.Data.SqlClient.SqlInternalConnectionTds.AttemptOneLogin(ServerInfo serverInfo, String newPassword, Boolean ignoreSniOpenTimeout, TimeoutTimer timeout, SqlConnection owningObject) +129 System.Data.SqlClient.SqlInternalConnectionTds.LoginNoFailover(ServerInfo serverInfo, String newPassword, Boolean redirectedUserInstance, SqlConnection owningObject, SqlConnectionString connectionOptions, TimeoutTimer timeout) +239 System.Data.SqlClient.SqlInternalConnectionTds.OpenLoginEnlist(SqlConnection owningObject, TimeoutTimer timeout, SqlConnectionString connectionOptions, String newPassword, Boolean redirectedUserInstance) +195 System.Data.SqlClient.SqlInternalConnectionTds..ctor(DbConnectionPoolIdentity identity, SqlConnectionString connectionOptions, Object providerInfo, String newPassword, SqlConnection owningObject, Boolean redirectedUserInstance) +232 System.Data.SqlClient.SqlConnectionFactory.CreateConnection(DbConnectionOptions options, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningConnection) +185 System.Data.ProviderBase.DbConnectionFactory.CreatePooledConnection(DbConnection owningConnection, DbConnectionPool pool, DbConnectionOptions options) +33 System.Data.ProviderBase.DbConnectionPool.CreateObject(DbConnection owningObject) +524 System.Data.ProviderBase.DbConnectionPool.UserCreateRequest(DbConnection owningObject) +66 System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject) +479 System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection) +108 System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory) +126 System.Data.SqlClient.SqlConnection.Open() +125 System.Data.EntityClient.EntityConnection.OpenStoreConnectionIf(Boolean openCondition, DbConnection storeConnectionToOpen, DbConnection originalConnection, String exceptionCode, String attemptedOperation, Boolean& closeStoreConnectionOnFailure) +52 [EntityException: The underlying provider failed on Open.] System.Data.EntityClient.EntityConnection.OpenStoreConnectionIf(Boolean openCondition, DbConnection storeConnectionToOpen, DbConnection originalConnection, String exceptionCode, String attemptedOperation, Boolean& closeStoreConnectionOnFailure) +161 System.Data.EntityClient.EntityConnection.Open() +98 System.Data.Objects.ObjectContext.EnsureConnection() +81 System.Data.Objects.ObjectQuery`1.GetResults(Nullable`1 forMergeOption) +46 System.Data.Objects.ObjectQuery`1.System.Collections.Generic.IEnumerable<T>.GetEnumerator() +44 System.Data.Objects.ObjectQuery`1.GetEnumeratorInternal() +36 System.Data.Objects.ObjectQuery.System.Collections.IEnumerable.GetEnumerator() +10 System.Web.DynamicData.Misc.FillListItemCollection(IMetaTable table, ListItemCollection listItemCollection) +50 System.Web.DynamicData.QueryableFilterUserControl.PopulateListControl(ListControl listControl) +85 Topology_Web_Dynamic.ForeignKeyFilter.Page_Init(Object sender, EventArgs e) in U:\My Dropbox\source\ToplogyLibrary\Topology_Web_Dynamic\DynamicData\Filters\ForeignKey.ascx.cs:41 System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) +14 System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +35 System.Web.UI.Control.OnInit(EventArgs e) +91 System.Web.UI.UserControl.OnInit(EventArgs e) +83 System.Web.UI.Control.InitRecursive(Control namingContainer) +140 System.Web.UI.Control.AddedControl(Control control, Int32 index) +197 System.Web.UI.ControlCollection.Add(Control child) +79 System.Web.DynamicData.DynamicFilter.EnsureInit(IQueryableDataSource dataSource) +200 System.Web.DynamicData.QueryableFilterRepeater.<Page_InitComplete>b__1(DynamicFilter f) +11 System.Collections.Generic.List`1.ForEach(Action`1 action) +145 System.Web.DynamicData.QueryableFilterRepeater.Page_InitComplete(Object sender, EventArgs e) +607 System.EventHandler.Invoke(Object sender, EventArgs e) +0 System.Web.UI.Page.OnInitComplete(EventArgs e) +8871862 System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +604 Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.0.30319.1

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  • How to count each digit in a range of integers?

    - by Carlos Gutiérrez
    Imagine you sell those metallic digits used to number houses, locker doors, hotel rooms, etc. You need to find how many of each digit to ship when your customer needs to number doors/houses: 1 to 100 51 to 300 1 to 2,000 with zeros to the left The obvious solution is to do a loop from the first to the last number, convert the counter to a string with or without zeros to the left, extract each digit and use it as an index to increment an array of 10 integers. I wonder if there is a better way to solve this, without having to loop through the entire integers range. Solutions in any language or pseudocode are welcome. Edit: Answers review John at CashCommons and Wayne Conrad comment that my current approach is good and fast enough. Let me use a silly analogy: If you were given the task of counting the squares in a chess board in less than 1 minute, you could finish the task by counting the squares one by one, but a better solution is to count the sides and do a multiplication, because you later may be asked to count the tiles in a building. Alex Reisner points to a very interesting mathematical law that, unfortunately, doesn’t seem to be relevant to this problem. Andres suggests the same algorithm I’m using, but extracting digits with %10 operations instead of substrings. John at CashCommons and phord propose pre-calculating the digits required and storing them in a lookup table or, for raw speed, an array. This could be a good solution if we had an absolute, unmovable, set in stone, maximum integer value. I’ve never seen one of those. High-Performance Mark and strainer computed the needed digits for various ranges. The result for one millon seems to indicate there is a proportion, but the results for other number show different proportions. strainer found some formulas that may be used to count digit for number which are a power of ten. Robert Harvey had a very interesting experience posting the question at MathOverflow. One of the math guys wrote a solution using mathematical notation. Aaronaught developed and tested a solution using mathematics. After posting it he reviewed the formulas originated from Math Overflow and found a flaw in it (point to Stackoverflow :). noahlavine developed an algorithm and presented it in pseudocode. A new solution After reading all the answers, and doing some experiments, I found that for a range of integer from 1 to 10n-1: For digits 1 to 9, n*10(n-1) pieces are needed For digit 0, if not using leading zeros, n*10n-1 - ((10n-1) / 9) are needed For digit 0, if using leading zeros, n*10n-1 - n are needed The first formula was found by strainer (and probably by others), and I found the other two by trial and error (but they may be included in other answers). For example, if n = 6, range is 1 to 999,999: For digits 1 to 9 we need 6*105 = 600,000 of each one For digit 0, without leading zeros, we need 6*105 – (106-1)/9 = 600,000 - 111,111 = 488,889 For digit 0, with leading zeros, we need 6*105 – 6 = 599,994 These numbers can be checked using High-Performance Mark results. Using these formulas, I improved the original algorithm. It still loops from the first to the last number in the range of integers, but, if it finds a number which is a power of ten, it uses the formulas to add to the digits count the quantity for a full range of 1 to 9 or 1 to 99 or 1 to 999 etc. Here's the algorithm in pseudocode: integer First,Last //First and last number in the range integer Number //Current number in the loop integer Power //Power is the n in 10^n in the formulas integer Nines //Nines is the resut of 10^n - 1, 10^5 - 1 = 99999 integer Prefix //First digits in a number. For 14,200, prefix is 142 array 0..9 Digits //Will hold the count for all the digits FOR Number = First TO Last CALL TallyDigitsForOneNumber WITH Number,1 //Tally the count of each digit //in the number, increment by 1 //Start of optimization. Comments are for Number = 1,000 and Last = 8,000. Power = Zeros at the end of number //For 1,000, Power = 3 IF Power 0 //The number ends in 0 00 000 etc Nines = 10^Power-1 //Nines = 10^3 - 1 = 1000 - 1 = 999 IF Number+Nines <= Last //If 1,000+999 < 8,000, add a full set Digits[0-9] += Power*10^(Power-1) //Add 3*10^(3-1) = 300 to digits 0 to 9 Digits[0] -= -Power //Adjust digit 0 (leading zeros formula) Prefix = First digits of Number //For 1000, prefix is 1 CALL TallyDigitsForOneNumber WITH Prefix,Nines //Tally the count of each //digit in prefix, //increment by 999 Number += Nines //Increment the loop counter 999 cycles ENDIF ENDIF //End of optimization ENDFOR SUBROUTINE TallyDigitsForOneNumber PARAMS Number,Count REPEAT Digits [ Number % 10 ] += Count Number = Number / 10 UNTIL Number = 0 For example, for range 786 to 3,021, the counter will be incremented: By 1 from 786 to 790 (5 cycles) By 9 from 790 to 799 (1 cycle) By 1 from 799 to 800 By 99 from 800 to 899 By 1 from 899 to 900 By 99 from 900 to 999 By 1 from 999 to 1000 By 999 from 1000 to 1999 By 1 from 1999 to 2000 By 999 from 2000 to 2999 By 1 from 2999 to 3000 By 1 from 3000 to 3010 (10 cycles) By 9 from 3010 to 3019 (1 cycle) By 1 from 3019 to 3021 (2 cycles) Total: 28 cycles Without optimization: 2,235 cycles Note that this algorithm solves the problem without leading zeros. To use it with leading zeros, I used a hack: If range 700 to 1,000 with leading zeros is needed, use the algorithm for 10,700 to 11,000 and then substract 1,000 - 700 = 300 from the count of digit 1. Benchmark and Source code I tested the original approach, the same approach using %10 and the new solution for some large ranges, with these results: Original 104.78 seconds With %10 83.66 With Powers of Ten 0.07 A screenshot of the benchmark application: If you would like to see the full source code or run the benchmark, use these links: Complete Source code (in Clarion): http://sca.mx/ftp/countdigits.txt Compilable project and win32 exe: http://sca.mx/ftp/countdigits.zip Accepted answer noahlavine solution may be correct, but l just couldn’t follow the pseudo code, I think there are some details missing or not completely explained. Aaronaught solution seems to be correct, but the code is just too complex for my taste. I accepted strainer’s answer, because his line of thought guided me to develop this new solution.

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  • Visibility.Collapse doesnt work

    - by nitin
    Visibility.Collapse doesnt work in my case. below is the XAML. If i try to hide the lblCountry and cmbCountry a white space is shown between zip and practice fields. There is no option to hide an entire row of a Grid. <Grid> <Canvas Name="canDemographic" > </Canvas> <Grid HorizontalAlignment="Center" VerticalAlignment="Center"> <Grid.ColumnDefinitions> <ColumnDefinition Width="auto"/> <ColumnDefinition Width="auto"/> </Grid.ColumnDefinitions> <Grid.RowDefinitions> <RowDefinition Height="40"/> <RowDefinition Height="40" /> <RowDefinition Height="40" /> <RowDefinition Height="40" /> <RowDefinition Height="40" /> <RowDefinition Height="40"/> <RowDefinition Height="40"/> <RowDefinition Height="40"/> <RowDefinition Height="40"/> <RowDefinition Height="40"/> <RowDefinition Height="40"/> <RowDefinition Height="40"/> <RowDefinition Height="40"/> </Grid.RowDefinitions> <TextBlock Width="800" Height="50" Grid.Column="0" Grid.Row="1" Grid.ColumnSpan="2" VerticalAlignment="Center" HorizontalAlignment="Center" FontFamily="Arial" FontSize="30" FontWeight="Bold" Visibility="Collapsed"> Please review or enter your user information details: </TextBlock> <TextBlock Width="200" Height="30" Grid.Column="0" Grid.Row="2" VerticalAlignment="Center" HorizontalAlignment="Left" FontFamily="Arial" FontSize="18" FontWeight="Bold"> *First Name: </TextBlock> <TextBlock Width="200" Height="30" Grid.Column="0" Grid.Row="3" VerticalAlignment="Center" HorizontalAlignment="Left" FontFamily="Arial" FontSize="18" FontWeight="Bold" Text=" Middle Name:"></TextBlock> <TextBlock Width="200" Height="30" Grid.Column="0" Grid.Row="4" VerticalAlignment="Center" HorizontalAlignment="Left" FontFamily="Arial" FontSize="18" FontWeight="Bold"> *Last Name: </TextBlock> <TextBlock Name="tbEmail" Width="200" Height="30" Grid.Column="0" Grid.Row="12" VerticalAlignment="Center" HorizontalAlignment="Left" FontFamily="Arial" FontSize="18" FontWeight="Bold"> *Email Address: </TextBlock> <TextBlock Width="200" Height="30" Grid.Column="0" Grid.Row="5" VerticalAlignment="Center" HorizontalAlignment="Left" FontFamily="Arial" FontSize="18" FontWeight="Bold"> *Address1: </TextBlock> <TextBlock Width="200" Height="30" Grid.Column="0" Grid.Row="6" VerticalAlignment="Center" HorizontalAlignment="Left" FontFamily="Arial" FontSize="18" FontWeight="Bold" Text=" Address2:"></TextBlock> <TextBlock Width="200" Height="30" Grid.Column="0" Grid.Row="7" VerticalAlignment="Center" HorizontalAlignment="Left" FontFamily="Arial" FontSize="18" FontWeight="Bold"> *City: </TextBlock> <TextBlock Width="200" Height="30" Grid.Column="0" Grid.Row="8" VerticalAlignment="Center" HorizontalAlignment="Left" FontFamily="Arial" FontSize="18" FontWeight="Bold"> *State: </TextBlock> <TextBlock Width="200" Height="30" Grid.Column="0" Grid.Row="9" VerticalAlignment="Center" HorizontalAlignment="Left" FontFamily="Arial" FontSize="18" FontWeight="Bold"> *Zip: </TextBlock> <TextBlock Name="lblCountry" Width="200" Grid.Column="0" Grid.ColumnSpan="2" Grid.Row="10" VerticalAlignment="Center" HorizontalAlignment="Left" FontFamily="Arial" FontSize="18" FontWeight="Bold" Text=" *Country:" Visibility="Collapsed"="></TextBlock> <TextBlock Width="200" Height="30" Grid.Column="0" Grid.Row="11" VerticalAlignment="Center" HorizontalAlignment="Left" FontFamily="Arial" FontSize="18" FontWeight="Bold" Text=" Practice/Affiliation:"></TextBlock> <!-- Input fields --> <TextBox Name="txtFirstName" Width="200" Height="30" Grid.Column="1" Grid.Row="2" VerticalAlignment="Center" HorizontalAlignment="Left" FontFamily="Arial" FontSize="18" FontWeight="Bold" MaxLength="20" TextChanged="txtFirstName_TextChanged" IsEnabled="True" /> <TextBox Name="txtMiddleName" Width="200" Height="30" VerticalAlignment="Center" HorizontalAlignment="Left" FontFamily="Arial" FontSize="18" FontWeight="Bold" Grid.Column="1" Grid.Row="3" MaxLength="10" IsEnabled="True" /> <TextBox Name="txtLastName" Width="200" Height="30" VerticalAlignment="Center" HorizontalAlignment="Left" FontFamily="Arial" FontSize="18" FontWeight="Bold" Grid.Column="1" Grid.Row="4" MaxLength="20" TextChanged="txtLastName_TextChanged" /> <TextBox Name="txtEmail" Width="200" Height="30" VerticalAlignment="Center" HorizontalAlignment="Left" FontFamily="Arial" FontSize="18" FontWeight="Bold" Grid.Column="1" Grid.Row="12" MaxLength="100"/> <TextBox Name="txtAddress1" Width="200" Height="30" VerticalAlignment="Center" HorizontalAlignment="Left" FontFamily="Arial" FontSize="18" FontWeight="Bold" Grid.Column="1" Grid.Row="5" MaxLength="100" TextChanged="txtAddress1_TextChanged" /> <TextBox Name="txtAddress2" Width="200" Height="30" VerticalAlignment="Center" HorizontalAlignment="Left" FontFamily="Arial" FontSize="18" FontWeight="Bold" Grid.Column="1" Grid.Row="6" MaxLength="100"/> <TextBox Name="txtCity" Width="200" Height="30" VerticalAlignment="Center" HorizontalAlignment="Left" FontFamily="Arial" FontSize="18" FontWeight="Bold" Grid.Column="1" Grid.Row="7" MaxLength="50" TextChanged="txtCity_TextChanged" /> <TextBox Name="txtState" Width="200" Height="30" VerticalAlignment="Center" HorizontalAlignment="Left" FontFamily="Arial" FontSize="18" FontWeight="Bold" Grid.Column="1" Grid.Row="8" MaxLength="50" TextChanged="txtState_TextChanged" /> <TextBox Name="txtZip" Width="200" Height="30" VerticalAlignment="Center" HorizontalAlignment="Left" FontFamily="Arial" FontSize="18" FontWeight="Bold" Grid.Column="1" Grid.Row="9" MaxLength="50" TextChanged="txtZip_TextChanged" /> <ComboBox Name="cmbCountry" Width="200" VerticalAlignment="Center" HorizontalAlignment="Left" FontFamily="Arial" FontSize="18" FontWeight="Bold" Grid.Column="0" Grid.Row="10" Grid.ColumnSpan="2" SelectionChanged="cmbCountry_SelectionChanged" ItemsSource="{Binding}" Visibility="Collapsed" /> <TextBox Name="txtPractice" Width="200" Height="30" VerticalAlignment="Center" HorizontalAlignment="Left" FontFamily="Arial" FontSize="18" FontWeight="Bold" Grid.Column="1" Grid.Row="11" MaxLength="50"/> </Grid> <Button Name="btnExit" Height="30" VerticalAlignment="Bottom" Width="100" HorizontalAlignment="Left" Margin="21,0,0,12" BorderThickness="1" FontFamily="arial" Background="LightGray" FontSize="12pt" FontWeight="Bold" Click="btnExit_Click">Back</Button> <Button Name="btnNext" Height="30" VerticalAlignment="Bottom" Width="100" HorizontalAlignment="Right" Margin="0,0,21,12" BorderThickness="1" FontFamily="arial" Background="LightGray" FontSize="12pt" FontWeight="Bold" Click="btnNext_Click" IsEnabled="False" >Next</Button> </Grid> </ScrollViewer>

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  • Resolving SNAPSHOT dependencies with timestamps from Ivy

    - by bradhouse
    I am attempting to resolve timestamped SNAPSHOT dependencies with Ivy. The environment is Ant + Ivy 1.2.0 + Archiva. Archiva itself is populated from Maven2 builds. Ivy is only used to resolve dependencies (from a single, non Maven2 project). How can Ivy be configured to correctly resolve timestamped artifacts from an Archiva or m2 repository? For reference my current configuration is: ivysettings.xml looks similar to: <ivysettings> <settings defaultResolver="archiva-chain"/> <resolvers> <chain name="archiva-chain" changingPattern=".*SNAPSHOT" checkmodified="true"> <ibiblio name="archiva-internal" m2compatible="true" usepoms="true" pattern="[organization]/[module]/[revision]/[artifact]-[revision].[ext]" root="http://host:port/archiva/repository/internal"/> <ibiblio name="archiva-deploy" m2compatible="true" usepoms="true" pattern="[organization]/[module]/[revision]/[artifact]-[revision].[ext]" root="http://host:port/archiva/repository/deploy"/> <ibiblio name="archiva-snapshots" m2compatible="true" usepoms="true" pattern="[organization]/[module]/[revision]/[artifact]-[revision].[ext]" root="http://host:port/archiva/repository/snapshots"/> </chain> </resolvers> </ivysettings> The ivy.xml dependencies are simple: <ivy-module version="2.0"> <info organisation="com.myorg" module="myapp"/> <dependencies> <dependency org="com.myorg" name="myartifact" rev="1.8.0-SNAPSHOT" changing="true"/> </dependencies> </ivy-module> Ivy does not attempt to resolve a timestamped artifact. E.g. [ivy:retrieve] :: problems summary :: [ivy:retrieve] :::: WARNINGS [ivy:retrieve] module not found: com.myorg#myartifact;1.8.0-SNAPSHOT [ivy:retrieve] ==== archiva-internal: tried [ivy:retrieve] -- artifact com.myorg#myartifact;1.8.0-SNAPSHOT!myartifact.jar: [ivy:retrieve] http://host:port/archiva/repository/internal/com.myorg/myartifact/1.8.0-SNAPSHOT/myartifact-1.8.0-SNAPSHOT.jar [ivy:retrieve] ==== archiva-deploy: tried [ivy:retrieve] -- artifact com.myorg#myartifact;1.8.0-SNAPSHOT!myartifact.jar: [ivy:retrieve] http://host:port/archiva/repository/deploy/com.myorg/myartifact/1.8.0-SNAPSHOT/myartifact-1.8.0-SNAPSHOT.jar [ivy:retrieve] ==== archiva-snapshots: tried [ivy:retrieve] -- artifact com.myorg#myartifact;1.8.0-SNAPSHOT!myartifact.jar: [ivy:retrieve] http://host:port/archiva/repository/snapshots/com.myorg/myartifact/1.8.0-SNAPSHOT/myartifact-1.8.0-SNAPSHOT.jar [ivy:retrieve] :::::::::::::::::::::::::::::::::::::::::::::: [ivy:retrieve] :: UNRESOLVED DEPENDENCIES :: [ivy:retrieve] :::::::::::::::::::::::::::::::::::::::::::::: [ivy:retrieve] :: com.myorg#myartifact;1.8.0-SNAPSHOT: not found [ivy:retrieve] :::::::::::::::::::::::::::::::::::::::::::::: [ivy:retrieve] [ivy:retrieve] [ivy:retrieve] :: USE VERBOSE OR DEBUG MESSAGE LEVEL FOR MORE DETAILS There is a maven-metadata.xml in snapshots/com/myorg/myartifact: <?xml version="1.0" encoding="UTF-8"?> <metadata> <groupId>com.myorg</groupId> <artifactId>myartifact</artifactId> <versioning> <latest>1.8.0-SNAPSHOT</latest> <versions> <version>1.3.0-SNAPSHOT</version> <version>1.4.2-SNAPSHOT</version> <version>1.6.1-SNAPSHOT</version> <version>1.8.0-SNAPSHOT</version> </versions> <lastUpdated>20100303003206</lastUpdated> </versioning> </metadata> The maven-metadata.xml in snapshots/com/myorg/myartifact/1.8.0-SNAPSHOT: <?xml version="1.0" encoding="UTF-8"?> <metadata> <groupId>com.myorg</groupId> <artifactId>myartifact</artifactId> <version>1.8.0-SNAPSHOT</version> <versioning> <snapshot> <buildNumber>7</buildNumber> <timestamp>20100303.003206</timestamp> </snapshot> <lastUpdated>20100303003206</lastUpdated> </versioning> </metadata> Not all that useful, but for completeness, the files in the directory snapshots/com/myorg/myartifact/1.8.0-SNAPSHOT for the referenced snapshot: -rw-r--r-- 1 archiva archiva 240670 Mar 3 10:32 myartifact-1.8.0-20100303.003206-7.jar -rw-r--r-- 1 archiva archiva 32 Mar 3 10:32 myartifact-1.8.0-20100303.003206-7.jar.md5 -rw-r--r-- 1 archiva archiva 40 Mar 3 10:32 myartifact-1.8.0-20100303.003206-7.jar.sha1 -rw-r--r-- 1 archiva archiva 4068 Mar 3 10:32 myartifact-1.8.0-20100303.003206-7.pom -rw-r--r-- 1 archiva archiva 32 Mar 3 10:32 myartifact-1.8.0-20100303.003206-7.pom.md5 -rw-r--r-- 1 archiva archiva 40 Mar 3 10:32 myartifact-1.8.0-20100303.003206-7.pom.sha1 -rw-r--r-- 1 archiva archiva 180821 Mar 3 10:32 myartifact-1.8.0-20100303.003206-7-sources.jar -rw-r--r-- 1 archiva archiva 32 Mar 3 10:32 myartifact-1.8.0-20100303.003206-7-sources.jar.md5 -rw-r--r-- 1 archiva archiva 40 Mar 3 10:32 myartifact-1.8.0-20100303.003206-7-sources.jar.sha1

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  • Binding data to subgrid

    - by bhargav
    i have a jqgrid with a subgrid...the databinding is done in javascript like this <script language="javascript" type="text/javascript"> var x = screen.width; $(document).ready(function () { $("#projgrid").jqGrid({ mtype: 'POST', datatype: function (pdata) { getData(pdata); }, colNames: ['Project ID', 'Due Date', 'Project Name', 'SalesRep', 'Organization:', 'Status', 'Active Value', 'Delete'], colModel: [ { name: 'Project ID', index: 'project_id', width: 12, align: 'left', key: true }, { name: 'Due Date', index: 'project_date_display', width: 15, align: 'left' }, { name: 'Project Name', index: 'project_title', width: 60, align: 'left' }, { name: 'SalesRep', index: 'Salesrep', width: 22, align: 'left' }, { name: 'Organization:', index: 'customer_company_name:', width: 56, align: 'left' }, { name: 'Status', index: 'Status', align: 'left', width: 15 }, { name: 'Active Value', index: 'Active Value', align: 'left', width: 10 }, { name: 'Delete', index: 'Delete', align: 'left', width: 10}], pager: '#proj_pager', rowList: [10, 20, 50], sortname: 'project_id', sortorder: 'asc', rowNum: 10, loadtext: "Loading....", subGrid: true, shrinkToFit: true, emptyrecords: "No records to view", width: x - 100, height: "100%", rownumbers: true, caption: 'Projects', subGridRowExpanded: function (subgrid_id, row_id) { var subgrid_table_id, pager_id; subgrid_table_id = subgrid_id + "_t"; pager_id = "p_" + subgrid_table_id; $("#" + subgrid_id).html("<table id='" + subgrid_table_id + "' class='scroll'></table><div id='" + pager_id + "' class='scroll'></div>"); jQuery("#" + subgrid_table_id).jqGrid({ mtype: 'POST', postData: { entityIndex: function () { return row_id } }, datatype: function (pdata) { getactionData(pdata); }, height: "100%", colNames: ['Event ID', 'Priority', 'Deadline', 'From Date', 'Title', 'Status', 'Hours', 'Contact From', 'Contact To'], colModel: [ { name: 'Event ID', index: 'Event ID' }, { name: 'Priority', index: 'IssueCode' }, { name: 'Deadline', index: 'IssueTitle' }, { name: 'From Date', index: 'From Date' }, { name: 'Title', index: 'Title' }, { name: 'Status', index: 'Status' }, { name: 'Hours', index: 'Hours' }, { name: 'Contact From', index: 'Contact From' }, { name: 'Contact To', index: 'Contact To' } ], caption: "Action Details", rowNum: 10, pager: '#actionpager', rowList: [10, 20, 30, 50], sortname: 'Event ID', sortorder: "desc", loadtext: "Loading....", shrinkToFit: true, emptyrecords: "No records to view", rownumbers: true, ondblClickRow: function (rowid) { } }); jQuery("#actiongrid").jqGrid('navGrid', '#actionpager', { edit: false, add: false, del: false, search: false }); } }); jQuery("#projgrid").jqGrid('navGrid', '#proj_pager', { edit: false, add: false, del: false, excel: true, search: false }); }); function getactionData(pdata) { var project_id = pdata.entityIndex(); var ChannelContact = document.getElementById('ctl00_ContentPlaceHolder2_ddlChannelContact').value; var HideCompleted = document.getElementById('ctl00_ContentPlaceHolder2_chkHideCompleted').checked; var Scm = document.getElementById('ctl00_ContentPlaceHolder2_chkScm').checked; var checkOnlyContact = document.getElementById('ctl00_ContentPlaceHolder2_chkOnlyContact').checked; var MerchantId = document.getElementById('ctl00_ContentPlaceHolder2_ucProjectDetail_hidden_MerchantId').value; var nrows = pdata.rows; var npage = pdata.page; var sortindex = pdata.sidx; var sortdir = pdata.sord; var path = "project_brow.aspx/GetActionDetails" $.ajax({ type: "POST", url: path, data: "{'project_id': '" + project_id + "','ChannelContact': '" + ChannelContact + "','HideCompleted': '" + HideCompleted + "','Scm': '" + Scm + "','checkOnlyContact': '" + checkOnlyContact + "','MerchantId': '" + MerchantId + "','nrows': '" + nrows + "','npage': '" + npage + "','sortindex': '" + sortindex + "','sortdir': '" + sortdir + "'}", contentType: "application/json; charset=utf-8", success: function (data, textStatus) { if (textStatus == "success") obj = jQuery.parseJSON(data.d) ReceivedData(obj); }, error: function (data, textStatus) { alert('An error has occured retrieving data!'); } }); } function ReceivedData(data) { var thegrid = jQuery("#actiongrid")[0]; thegrid.addJSONData(data); } function getData(pData) { var dtDateFrom = document.getElementById('ctl00_ContentPlaceHolder2_dtDateFrom_textBox').value; var dtDateTo = document.getElementById('ctl00_ContentPlaceHolder2_dtDateTo_textBox').value; var Status = document.getElementById('ctl00_ContentPlaceHolder2_ddlStatus').value; var Type = document.getElementById('ctl00_ContentPlaceHolder2_ddlType').value; var Channel = document.getElementById('ctl00_ContentPlaceHolder2_ddlChannel').value; var ChannelContact = document.getElementById('ctl00_ContentPlaceHolder2_ddlChannelContact').value; var Customers = document.getElementById('ctl00_ContentPlaceHolder2_txtCustomers').value; var KeywordSearch = document.getElementById('ctl00_ContentPlaceHolder2_txtKeywordSearch').value; var Scm = document.getElementById('ctl00_ContentPlaceHolder2_chkScm').checked; var HideCompleted = document.getElementById('ctl00_ContentPlaceHolder2_chkHideCompleted').checked; var SelectedCustomerId = document.getElementById("<%=hdnSelectedCustomerId.ClientID %>").value var MerchantId = document.getElementById('ctl00_ContentPlaceHolder2_ucProjectDetail_hidden_MerchantId').value; var nrows = pData.rows; var npage = pData.page; var sortindex = pData.sidx; var sortdir = pData.sord; PageMethods.GetProjectDetails(SelectedCustomerId, Customers, KeywordSearch, MerchantId, Channel, Status, Type, dtDateTo, dtDateFrom, ChannelContact, HideCompleted, Scm, nrows, npage, sortindex, sortdir, AjaxSucceeded, AjaxFailed); } function AjaxSucceeded(data) { var obj = jQuery.parseJSON(data) if (obj != null) { if (obj.records!="") { ReceivedClientData(obj); } else { alert('No Data Available to Display') } } } function AjaxFailed(data) { alert('An error has occured retrieving data!'); } function ReceivedClientData(data) { var thegrid = jQuery("#projgrid")[0]; thegrid.addJSONData(data); } </script> as u can see projgrid is my parent grid and action grid is my subgrid to be shown onclicking the '+' symbol Projgrid is binded and being displayed but when it comes to subgrid im able to get the data but the problem comes at the time of binding data to subgrid which is done in function named ReceivedData where you can see like this function ReceivedData(data) { var thegrid = jQuery("#actiongrid")[0]; thegrid.addJSONData(data); } "data" is what i wanted exactly but it cannot be binded to actiongrid which is the subgrid Thanx in advance for help

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  • MySQL Binary Storage using BLOB VS OS File System: large files, large quantities, large problems.

    - by Quantico773
    Hi Guys, Versions I am running (basically latest of everything): PHP: 5.3.1 MySQL: 5.1.41 Apache: 2.2.14 OS: CentOS (latest) Here is the situation. I have thousands of very important documents, ranging from customer contracts to voice signatures (recordings of customer authorisation for contracts), with file types including, but not limited to jpg, gif, png, tiff, doc, docx, xls, wav, mp3, pdf, etc. All of these documents are currently stored on several servers including Windows 32 bit, CentOS and Mac, among others. Some files are also stored on employees desktop computers and laptops, and some are still hard copies stored in hundreds of boxes and filing cabinets. Now because customers or lawyers could demand evidence of contracts at any time, my company has to be able to search and locate the correct document(s) effectively, for this reason ALL of these files have to be digitised (if not already) and correlated into some sort of order for searching and accessing. As the programmer, I have created a full Customer Relations Management tool that the whole company uses. This includes Customer Profiles management, Order and job Tracking tools, Job/sale creation and management modules, etc, and at the moment any file that is needed at a customer profile level (drivers licence, credit authority, etc) or at a job/sale level (contracts, voice signatures, etc) can be uploaded to the server and sits in a parent/child hierarchy structure, just like Windows Explorer or any other typical file managment model. The structure appears as such: drivers_license |- DL_123.jpg voice_signatures |- VS_123.wav |- VS_4567.wav contracts So the files are uplaoded using PHP and Apache, and are stored in the file system of the OS. At the time of uploading, certain information about the file(s) is stored in a MySQL database. Some of the information stored is: TABLE: FileUploads FileID CustomerID (the customer id that the file belongs to, they all have this.) JobID/SaleID (the id of the job/sale associated, if any.) FileSize FileType UploadedDateTime UploadedBy FilePath (the directory path the file is stored in.) FileName (current file name of uploaded file, combination of CustomerID and JobID/SaleID if applicable.) FileDescription OriginalFileName (original name of the source file when uploaded, including extension.) So as you can see, the file is linked to the database by the File Name. When I want to provide a customers' files for download to a user all I have to do is "SELECT * FROM FileUploads WHERE CustomerID = 123 OR JobID = 2345;" and this will output all the file details I require, and with the FilePath and FileName I can provide the link for download. http... server / FilePath / FileName There are a number of problems with this method: Storing files in this "database unconcious" environment means data integrity is not kept. If a record is deleted, the file may not be deleted also, or vice versa. Files are strewn all over the place, different servers, computers, etc. The file name is the ONLY thing matching the binary to the database and customer profile and customer records. etc, etc. There are so many reasons, some of which are described here: http://www.dreamwerx.net/site/article01 . Also there is an interesting article here too: sietch.net/ViewNewsItem.aspx?NewsItemID=124 . SO, after much research I have pretty much decided I am going to store ALL of these files in the database, as a BLOB or LONGBLOB, but there are still many considerations before I do this. I know that storing them in the database is a viable option, however there are a number of methods of storing them. I also know storing them is one thing; correlating and accessing them in a manageable way is another thing entirely. The article provided at this link: dreamwerx.net/site/article01 describes a way of splitting the uploaded binary files into 64kb chunks and storing each chunk with the FileID, and then streaming the actual binary file to the client using headers. This is a really cool idea since it alleviates preassure on the servers memory; instead of loading an entire 100mb file into the RAM and then sending it to the client, it is doing it 64kb at a time. I have tried this (and updated his scripts) and this is totally successful, in a very small frame of testing. So if you are in agreeance that this method is a viable, stable and robust long-term option to store moderately large files (1kb to couple hundred megs), and large quantities of these files, let me know what other considerations or ideas you have. Also, I am considering getting a current "File Management" PHP script that gives an interface for managing files stored in the File System and converting it to manage files stored in the database. If there is already any software out there that does this, please let me know. I guess there are many questions I could ask, and all the information is up there ^^ so please, discuss all aspects of this and we can pass ideas back and forth and teach each other. Cheers, Quantico773

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  • IIS7 + WCF + Silverlight problems

    - by Eanna
    Hey, I've been building a silverlight application and a WCF service for a while now and recently tried to host them in IIS7. I installed IIS7 on Windows Server 2008 R2 and added these two application to my default website. I am having a number of problems so im hoping one of you can help out... 1) The silverlight and WCF service applications do not work with pass-through authentication. I need to "connect as" the administrator server account when setting up the application. I read online that you should only need to use the "connect as" field when you are connecting to another computer. If i dont supply the admin credentials i get this error. Do i have to set up permissions somewhere else? HTTP Error 500.19 - Internal Server Error The requested page cannot be accessed because the related configuration data for the page is invalid. Detailed Error Information Module IIS Web Core Notification BeginRequest Handler Not yet determined Error Code 0x80070005 Config Error Cannot read configuration file due to insufficient permissions Config File \?\C:\Users\Administrator\Documents\My Dropbox\Research Masters\Project\WCFService\Website\web.config Requested URL http:://localhost:80/WCFService/Service.svc Physical Path C:\Users\Administrator\Documents\My Dropbox\Research Masters\Project\WCFService\Website\Service.svc Logon Method Not yet determined Logon User Not yet determined Config Source -1: 0: Links and More Information This error occurs when there is a problem reading the configuration file for the Web server or Web application. In some cases, the event logs may contain more information about what caused this error. 2) Visual studio generated 2 webpages to run my silverlight application (.html and .aspx). When I am running the silverlight application (connected as admin) I can navigate to the .html page, no problem. When I try to open the .aspx file i get the following error Server Error in '/Platform' Application. Access is denied. Description: An error occurred while accessing the resources required to serve this request. You might not have permission to view the requested resources. Error message 401.3: You do not have permission to view this directory or page using the credentials you supplied (access denied due to Access Control Lists). Ask the Web server's administrator to give you access to 'C:\Users\Administrator\Documents\My Dropbox\Research Masters\Project\Platform\Website\PlatformTestPage.aspx'. Version Information: Microsoft .NET Framework Version:4.0.30128; ASP.NET Version:4.0.30128.1 3) The WCF service runs fine (again, connected as admin) until i restart the server. When i try to run the WCF service after a reboot, the mysql assembly seems to be missing from the solution. If i just rebuilt the solution and run the service again... it works (until next restart). Whats causing this error? Solution here - http://tinypic.com/view.php?pic=5yasqx&s=5 Server Error in '/WCFService' Application. Could not load file or assembly 'MySql.Data, Version=6.2.2.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d' or one of its dependencies. Access is denied. Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.IO.FileLoadException: Could not load file or assembly 'MySql.Data, Version=6.2.2.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d' or one of its dependencies. Access is denied. Source Error: An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below. Assembly Load Trace: The following information can be helpful to determine why the assembly 'MySql.Data, Version=6.2.2.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d' could not be loaded. WRN: Assembly binding logging is turned OFF. To enable assembly bind failure logging, set the registry value [HKLM\Software\Microsoft\Fusion!EnableLog] (DWORD) to 1. Note: There is some performance penalty associated with assembly bind failure logging. To turn this feature off, remove the registry value [HKLM\Software\Microsoft\Fusion!EnableLog]. Stack Trace: [FileLoadException: Could not load file or assembly 'MySql.Data, Version=6.2.2.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d' or one of its dependencies. Access is denied.] System.Reflection.RuntimeAssembly._nLoad(AssemblyName fileName, String codeBase, Evidence assemblySecurity, RuntimeAssembly locationHint, StackCrawlMark& stackMark, Boolean throwOnFileNotFound, Boolean forIntrospection, Boolean suppressSecurityChecks) +0 System.Reflection.RuntimeAssembly.InternalLoadAssemblyName(AssemblyName assemblyRef, Evidence assemblySecurity, StackCrawlMark& stackMark, Boolean forIntrospection, Boolean suppressSecurityChecks) +567 System.Reflection.RuntimeAssembly.InternalLoad(String assemblyString, Evidence assemblySecurity, StackCrawlMark& stackMark, Boolean forIntrospection) +192 System.Reflection.Assembly.Load(String assemblyString) +35 System.ServiceModel.Activation.ServiceHostFactory.CreateServiceHost(String constructorString, Uri[] baseAddresses) +243 System.ServiceModel.HostingManager.CreateService(String normalizedVirtualPath) +1423 System.ServiceModel.HostingManager.ActivateService(String normalizedVirtualPath) +50 System.ServiceModel.HostingManager.EnsureServiceAvailable(String normalizedVirtualPath) +1132 [ServiceActivationException: The service '/WCFService/Service.svc' cannot be activated due to an exception during compilation. The exception message is: Could not load file or assembly 'MySql.Data, Version=6.2.2.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d' or one of its dependencies. Access is denied..] System.Runtime.AsyncResult.End(IAsyncResult result) +889824 System.ServiceModel.Activation.HostedHttpRequestAsyncResult.End(IAsyncResult result) +179150 System.Web.AsyncEventExecutionStep.OnAsyncEventCompletion(IAsyncResult ar) +107 Version Information: Microsoft .NET Framework Version:4.0.30128; ASP.NET Version:4.0.30128.1 Thats about it, hope someone reads this message, I wasted most of the weekend trying to fix these problems on my own... thanks

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  • How to stretch textfield in a JasperReport as per dynamic content?

    - by Debadatta Viva la Vida
    http://jasperreports.sourceforge.net/xsd/jasperreport.xsd" name="tree-template" pageWidth="595" pageHeight="842" columnWidth="481" leftMargin="57" rightMargin="57" topMargin="72" bottomMargin="72" want this field to auto stretch as per content <textField isStretchWithOverflow="true" isBlankWhenNull="true"> <reportElement positionType="Float" stretchType="RelativeToTallestObject" x="0" y="80" width="463" height="20"/> <textElement> <font size="10"/> </textElement> <textFieldExpression class="java.lang.String"><![CDATA[$F{goals}==null ? "Not Defined":$F{goals}]]></textFieldExpression> </textField> want this field to auto stretch as per content <staticText> <reportElement stretchType="RelativeToTallestObject" x="0" y="100" width="98" height="20"/> <textElement> <font isBold="true"/> </textElement> <text><![CDATA[Status Details]]></text> </staticText> <textField isStretchWithOverflow="true"> <reportElement stretchType="RelativeToTallestObject" x="2" y="120" width="463" height="20"/> <textElement/> <textFieldExpression class="java.lang.String"><![CDATA[$F{statusDetails}==null ? "Not Defined":$F{statusDetails}]]></textFieldExpression> </textField> <staticText> <reportElement stretchType="RelativeToTallestObject" x="0" y="140" width="98" height="20"/> <textElement> <font isBold="true"/> </textElement> <text><![CDATA[Risk Mitigation]]></text> </staticText> <textField> <reportElement stretchType="RelativeToTallestObject" x="18" y="160" width="463" height="20"/> <textElement/> <textFieldExpression class="java.lang.String"><![CDATA[$F{mitigation}==null?"Not Defined":$F{mitigation}]]></textFieldExpression> </textField> <textField> <reportElement stretchType="RelativeToTallestObject" x="79" y="40" width="100" height="20"/> <textElement/> <textFieldExpression class="java.lang.String"><![CDATA[new SimpleDateFormat("MMM dd,yyyy").format($F{releaseDate}.getTime())]]></textFieldExpression> </textField> <line> <reportElement x="0" y="180" width="481" height="1"/> </line> </band> </detail> <columnFooter> <band height="12" splitType="Stretch"/> </columnFooter> <pageFooter> <band height="13" splitType="Stretch"> <frame> <reportElement mode="Opaque" x="0" y="0" width="477" height="13" forecolor="#D0B48E" backcolor="#9DB1B8"/> <textField pattern="EEEEE dd MMMMM yyyy"> <reportElement style="Column header" x="2" y="0" width="197" height="13" forecolor="#FFFFFF"/> <textElement verticalAlignment="Middle"> <font size="10" isBold="false"/> </textElement> <textFieldExpression class="java.util.Date"><![CDATA[new java.util.Date()]]></textFieldExpression> </textField> <textField evaluationTime="Report"> <reportElement style="Column header" x="450" y="0" width="27" height="13" forecolor="#FFFFFF"/> <textElement verticalAlignment="Middle"> <font size="10" isBold="false"/> </textElement> <textFieldExpression class="java.lang.String"><![CDATA[" " + $V{PAGE_NUMBER}]]></textFieldExpression> </textField> <textField> <reportElement style="Column header" x="370" y="0" width="80" height="13" forecolor="#FFFFFF"/> <textElement textAlignment="Right" verticalAlignment="Middle"> <font size="10" isBold="false"/> </textElement> <textFieldExpression class="java.lang.String"><![CDATA["Page "+$V{PAGE_NUMBER}+" of"]]></textFieldExpression> </textField> </frame> </band> </pageFooter> <summary> <band splitType="Stretch"/> </summary>

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  • REST API Help in Rails

    - by dannymcc
    Hi Everyone, I am trying to get some information posted using our accountancy package (FreeAgentCentral) using their API via a GEM. http://github.com/aaronrussell/freeagent_api/ I have the following code to get it working (supposedly): Kase Controller def create @kase = Kase.new(params[:kase]) @company = Company.find(params[:kase][:company_id]) @kase = @company.kases.create!(params[:kase]) respond_to do |format| if @kase.save UserMailer.deliver_makeakase("[email protected]", "Highrise", @kase) @kase.create_freeagent_project(current_user) #flash[:notice] = 'Case was successfully created.' flash[:notice] = fading_flash_message("Case was successfully created & sent to Highrise.", 5) format.html { redirect_to(@kase) } format.xml { render :xml => @kase, :status => :created, :location => @kase } else format.html { render :action => "new" } format.xml { render :xml => @kase.errors, :status => :unprocessable_entity } end end end To save you looking through, the important part is: @kase.create_freeagent_project(current_user) Kase Model # FreeAgent API Project Create # Required attribues # :contact_id # :name # :payment_term_in_days # :billing_basis # must be 1, 7, 7.5, or 8 # :budget_units # must be Hours, Days, or Monetary # :status # must be Active or Completed def create_freeagent_project(current_user) p = Freeagent::Project.create( :contact_id => 0, :name => "#{jobno} - #{highrisesubject}", :payment_terms_in_days => 5, :billing_basis => 1, :budget_units => 'Hours', :status => 'Active' ) user = Freeagent::User.find_by_email(current_user.email) Freeagent::Timeslip.create( :project_id => p.id, :user_id => user.id, :hours => 1, :new_task => 'Setup', :dated_on => Time.now ) end lib/freeagent_api.rb require 'rubygems' gem 'activeresource', '< 3.0.0.beta1' require 'active_resource' module Freeagent class << self def authenticate(options) Base.authenticate(options) end end class Error < StandardError; end class Base < ActiveResource::Base def self.authenticate(options) self.site = "https://#{options[:domain]}" self.user = options[:username] self.password = options[:password] end end # Company class Company def self.invoice_timeline InvoiceTimeline.find :all, :from => '/company/invoice_timeline.xml' end def self.tax_timeline TaxTimeline.find :all, :from => '/company/tax_timeline.xml' end end class InvoiceTimeline < Base self.prefix = '/company/' end class TaxTimeline < Base self.prefix = '/company/' end # Contacts class Contact < Base end # Projects class Project < Base def invoices Invoice.find :all, :from => "/projects/#{id}/invoices.xml" end def timeslips Timeslip.find :all, :from => "/projects/#{id}/timeslips.xml" end end # Tasks - Complete class Task < Base self.prefix = '/projects/:project_id/' end # Invoices - Complete class Invoice < Base def mark_as_draft connection.put("/invoices/#{id}/mark_as_draft.xml", encode, self.class.headers).tap do |response| load_attributes_from_response(response) end end def mark_as_sent connection.put("/invoices/#{id}/mark_as_sent.xml", encode, self.class.headers).tap do |response| load_attributes_from_response(response) end end def mark_as_cancelled connection.put("/invoices/#{id}/mark_as_cancelled.xml", encode, self.class.headers).tap do |response| load_attributes_from_response(response) end end end # Invoice items - Complete class InvoiceItem < Base self.prefix = '/invoices/:invoice_id/' end # Timeslips class Timeslip < Base def self.find(*arguments) scope = arguments.slice!(0) options = arguments.slice!(0) || {} if options[:params] && options[:params][:from] && options[:params][:to] options[:params][:view] = options[:params][:from]+'_'+options[:params][:to] options[:params].delete(:from) options[:params].delete(:to) end case scope when :all then find_every(options) when :first then find_every(options).first when :last then find_every(options).last when :one then find_one(options) else find_single(scope, options) end end end # Users class User < Base self.prefix = '/company/' def self.find_by_email(email) users = User.find :all users.each do |u| u.email == email ? (return u) : next end raise Error, "No user matches that email!" end end end config/initializers/freeagent.rb Freeagent.authenticate({ :domain => 'XXXXX.freeagentcentral.com', :username => '[email protected]', :password => 'XXXXXX' }) The above render the following error when trying to create a new Case and send the details to FreeAgent: ActiveResource::ResourceNotFound in KasesController#create Failed with 404 Not Found and ActiveResource::ResourceNotFound (Failed with 404 Not Found): app/models/kase.rb:56:in `create_freeagent_project' app/controllers/kases_controller.rb:96:in `create' app/controllers/kases_controller.rb:93:in `create' Rendered rescues/_trace (176.5ms) Rendered rescues/_request_and_response (1.1ms) Rendering rescues/layout (internal_server_error) If anyone can shed any light on this problem it would be greatly appreciated! Thanks, Danny

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  • ASP.NET MVC - Views location Problem : The view 'Index' or its master was not found

    - by user326873
    Hi all, I've create an asp.net MVC 2 project, it works fine!! I've been asked to integrate the project in an existing web project in classic asp.net (I've add the folder containing the source, and not make a new project, because they have to bee in same project) I've configured my web.config file <pages pageBaseType="System.Web.UI.Page" > <controls> <add tagPrefix="asp" namespace="System.Web.UI" assembly="System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" /> <add tagPrefix="asp" namespace="System.Web.UI.WebControls" assembly="System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" /> </controls> <namespaces> <add namespace="System.Web.Mvc" /> <add namespace="System.Web.Mvc.Ajax" /> <add namespace="System.Web.Mvc.Html" /> <add namespace="System.Web.Routing" /> <add namespace="System.Linq" /> <add namespace="System.Collections.Generic" /> <add namespace="SearchApp.Helpers.CheckBoxList"/> <add namespace="SearchApp.Helpers.Pager"/> </namespaces> </pages> <httpModules> <add name="ScriptModule" type="System.Web.Handlers.ScriptModule, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" /> <add name="UrlRoutingModule" type="System.Web.Routing.UrlRoutingModule, System.Web.Routing, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" /> </httpModules> <!--- END MVC config section--> and my global.asax file (I'm working under IIS 5.1) : public static void RegisterRoutes(RouteCollection routes) { routes.IgnoreRoute("{resource}.axd/{*pathInfo}"); routes.MapRoute( "SearchApp", // Route name "SearchApp/{controller}.aspx/{action}/{id}", // URL with parameters new { controller = "Search", action = "Index", id = "" } // Parameter defaults ); } protected void Application_Start(Object sender, EventArgs e) { AreaRegistration.RegisterAllAreas(); RegisterRoutes(RouteTable.Routes); } The hierarchy of the project is (I can’t find how to insert Image in the post): +Project ++MVC2AppFolder +++Controller ++++SearchController.cs +++Views ++++Search +++++Index.aspx ++global.asax ++web.config as you can see the global.asax is not in the MVC App folder when I try to access the page Search/index.aspx using this url http://localhost/cstfwsrv/SearchApp/Search.aspx/Index[^] have the following error : I The view 'Index' or its master was not found. The following locations were searched: ~/Views/Search/Index.aspx ~/Views/Search/Index.ascx ~/Views/Shared/Index.aspx ~/Views/Shared/Index.ascx Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.InvalidOperationException: The view 'Index' or its master was not found. The following locations were searched: ~/Views/Search/Index.aspx ~/Views/Search/Index.ascx ~/Views/Shared/Index.aspx ~/Views/Shared/Index.ascx Source Error: An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below. Stack Trace: [InvalidOperationException: The view 'Index' or its master was not found. The following locations were searched: ~/Views/Search/Index.aspx ~/Views/Search/Index.ascx ~/Views/Shared/Index.aspx ~/Views/Shared/Index.ascx] System.Web.Mvc.ViewResult.FindView(ControllerContext context) +253553 System.Web.Mvc.ViewResultBase.ExecuteResult(ControllerContext context) +139 System.Web.Mvc.ControllerActionInvoker.InvokeActionResult(ControllerContext controllerContext, ActionResult actionResult) +10 System.Web.Mvc.<>c__DisplayClass14.<InvokeActionResultWithFilters>b__11() +20 System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilter(IResultFilter filter, ResultExecutingContext preContext, Func`1 continuation) +251 System.Web.Mvc.<>c__DisplayClass16.<InvokeActionResultWithFilters>b__13() +19 System.Web.Mvc.ControllerActionInvoker.InvokeActionResultWithFilters(ControllerContext controllerContext, IList`1 filters, ActionResult actionResult) +178 System.Web.Mvc.ControllerActionInvoker.InvokeAction(ControllerContext controllerContext, String actionName) +314 System.Web.Mvc.Controller.ExecuteCore() +105 System.Web.Mvc.ControllerBase.Execute(RequestContext requestContext) +39 System.Web.Mvc.ControllerBase.System.Web.Mvc.IController.Execute(RequestContext requestContext) +7 System.Web.Mvc.<>c__DisplayClass8.<BeginProcessRequest>b__4() +34 System.Web.Mvc.Async.<>c__DisplayClass1.<MakeVoidDelegate>b__0() +21 System.Web.Mvc.Async.<>c__DisplayClass8`1.<BeginSynchronous>b__7(IAsyncResult _) +12 System.Web.Mvc.Async.WrappedAsyncResult`1.End() +59 System.Web.Mvc.MvcHandler.EndProcessRequest(IAsyncResult asyncResult) +44 System.Web.Mvc.MvcHandler.System.Web.IHttpAsyncHandler.EndProcessRequest(IAsyncResult result) +7 System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +8677678 System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +155 As you can see he search for the Index.aspx page under ~/Views/Search/Index.aspx , wich is under ~/MVC2AppFolder/Views/Search/Index.aspx Is there a way to set in the Route Method, or any where else, the View Path? Thanks’ in advance

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  • error executing aapt, all of the sudden

    - by pjv
    I know there are a lot of these topics around but none seem to help in my case, nor describe it exactly. The best similar one is aapt not found under the right path. My problem is that I can be using Eclipse for a whole evening programming, compiling and using my device, and then suddenly I get "error executing aapt" for my current project and ofcourse R.java isn't (properly) generated anymore. I then restart Eclipse and everything goes away. I'm seeing this once a day on average however. I've recently switched to amd64 and installed the latest Android-2.3 SDK and matching tools. I know that there is now a platform-tools folder that has an aapt version that should work SDK version independently. At first I had added this directory to my PATH, as instructed on the SDK website. I've also tried not adding it to my path and making a link platforms/android-9/tools so that every SDK version might use it's own old copy. Needless to say, platform-tools/aapt is there and has the right permissions, and I have been able to execute it on the command-line at any time. When I do write a faulty xml file or sorts, and appropriately get an error, I see an extra line that says "aapt: /lib32/libz.so.1: no version information available". I'm running a recent Gentoo linux system. I have everything installed to support x86 on amd64, but have re-emerged emul-linux-x86-baselibs and zlib just to be sure. The problem persists. I do see some pages that spell horror over some zlib bugs, but I'm not sure if that's related. I realize I'm not on the reference Ubuntu platform, but surely the difference cannot be that great? It might very well be a bug in aapt or the tools itself. Why would it suddenly stop working? I also experience that the ids in R.java were incorrect, namely that simple findViewById() code would give ClassCastExceptions because of mixed ids the one time, and then work perfectly without any changes bu only a "clean project", in the aftermath of a failing aapt. Finally, I've run a few commands on aapt, that don't seem to add any extra information: #ldd aapt ./aapt: /lib32/libz.so.1: no version information available (required by ./aapt) linux-gate.so.1 => (0xffffe000) librt.so.1 => /lib32/librt.so.1 (0x4f864000) libpthread.so.0 => /lib32/libpthread.so.0 (0x4f849000) libz.so.1 => /lib32/libz.so.1 (0xf7707000) libstdc++.so.6 => /usr/lib/gcc/x86_64-pc-linux-gnu/4.4.4/32/libstdc++.so.6 (0x415e9000) libm.so.6 => /lib32/libm.so.6 (0x4f876000) libgcc_s.so.1 => /lib32/libgcc_s.so.1 (0x4fac6000) libc.so.6 => /lib32/libc.so.6 (0x4f5ed000) /lib/ld-linux.so.2 (0x4f5ca000) #file aapt aapt: ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.15, not stripped Can anybody tell anything wrong with my configuration? Does it smell like a bug perhaps (otherwise let's report it (again))? Update 2010-01-06: I've gained some more knowledge. When I recently was trying to export a signed apk, I ran into another error message (full details from the Eclipse error view) regarding aapt I hadn't seen before. Note here too, that I can just restart Eclipse and can export apks again without problems, at least for a little while. I'm starting to think it is related to lack of memory on my system. The message "onvoldoende geheugen beschikbaar" means "insufficient memory available". I have also been seeing insufficient memory errors in DDMS when I'm dumping HPROF files. Here is the error log (shortened): !ENTRY com.android.ide.eclipse.adt 4 0 2011-01-05 23:11:16.097 !MESSAGE Export Wizard Error !STACK 1 org.eclipse.core.runtime.CoreException: Failed to export application at com.android.ide.eclipse.adt.internal.project.ExportHelper.exportReleaseApk(Unknown Source) at com.android.ide.eclipse.adt.internal.wizards.export.ExportWizard.doExport(Unknown Source) at com.android.ide.eclipse.adt.internal.wizards.export.ExportWizard.access$0(Unknown Source) at com.android.ide.eclipse.adt.internal.wizards.export.ExportWizard$1.run(Unknown Source) at org.eclipse.jface.operation.ModalContext$ModalContextThread.run(ModalContext.java:121) Caused by: com.android.ide.eclipse.adt.internal.build.AaptExecException: Error executing aapt. Please check aapt is present at /opt/android-sdk/android-sdk-linux_x86-1.6_r1/platform-tools/aapt at com.android.ide.eclipse.adt.internal.build.BuildHelper.executeAapt(Unknown Source) at com.android.ide.eclipse.adt.internal.build.BuildHelper.packageResources(Unknown Source) ... 5 more Caused by: java.io.IOException: Cannot run program "/opt/android-sdk/android-sdk-linux_x86-1.6_r1/platform-tools/aapt": java.io.IOException: error=12, Onvoldoende geheugen beschikbaar ... Caused by: java.io.IOException: java.io.IOException: error=12, Onvoldoende geheugen beschikbaar ... !SUBENTRY 1 com.android.ide.eclipse.adt 4 0 2011-01-05 23:11:16.098 !MESSAGE Failed to export application !STACK 0 com.android.ide.eclipse.adt.internal.build.AaptExecException: Error executing aapt. Please check aapt is present at /opt/android-sdk/android-sdk-linux_x86-1.6_r1/platform-tools/aapt at com.android.ide.eclipse.adt.internal.build.BuildHelper.executeAapt(Unknown Source) at com.android.ide.eclipse.adt.internal.build.BuildHelper.packageResources(Unknown Source) at com.android.ide.eclipse.adt.internal.project.ExportHelper.exportReleaseApk(Unknown Source) at com.android.ide.eclipse.adt.internal.wizards.export.ExportWizard.doExport(Unknown Source) at com.android.ide.eclipse.adt.internal.wizards.export.ExportWizard.access$0(Unknown Source) at com.android.ide.eclipse.adt.internal.wizards.export.ExportWizard$1.run(Unknown Source) at org.eclipse.jface.operation.ModalContext$ModalContextThread.run(ModalContext.java:121) Caused by: java.io.IOException: Cannot run program "/opt/android-sdk/android-sdk-linux_x86-1.6_r1/platform-tools/aapt": java.io.IOException: error=12, Onvoldoende geheugen beschikbaar ... Caused by: java.io.IOException: java.io.IOException: error=12, Onvoldoende geheugen beschikbaar

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  • Error : java.lang.NoSuchMethodError: org.objectweb.asm.ClassWriter.<init>(I)V

    - by Hitesh Solanki
    Hiii.... I am developing small spring application. I have to store the details of the student information in the database. I have develop one simpleformcontroller.I have used netbeans + hibernate mapping + spring. when I deploy the project,the following errors is occured. please help me.. Thanks in advance..... My spring-config-db-applicationContext.xml is shown below: <?xml version="1.0" encoding="UTF-8"?> ${driverClassName} ${url} ${username} ${password} WEB-INF/classes/hibernate.cfg.xml -- hibernate.cfg.xml org.hibernate.cfg.AnnotationConfiguration -- <property name="hibernateProperties"> <props> <prop key="hibernate.dialect">${dialect}</prop> <prop key="hibernate.show_sql">true</prop> <!--<prop key="hibernate.hbm2ddl.auto">create</prop>--> </props> </property> </bean> Following error is occured: ERROR (org.springframework.web.context.ContextLoader:213) - Context initialization failed org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in URL [jndi:/localhost/Student/WEB-INF/classes/config/spring-db-applicationContext.xml]: Invocation of init method failed; nested exception is java.lang.NoSuchMethodError: org.objectweb.asm.ClassWriter.(I)V at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1395) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:512) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:450) at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:289) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:286) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:188) at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:526) at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:730) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:387) at org.springframework.web.context.ContextLoader.createWebApplicationContext(ContextLoader.java:270) at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:197) at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:47) at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:3843) at org.apache.catalina.core.StandardContext.start(StandardContext.java:4342) at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:791) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:771) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:525) at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:627) at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:511) at org.apache.catalina.startup.HostConfig.check(HostConfig.java:1231) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:297) at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:836) at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:761) at org.apache.catalina.manager.ManagerServlet.check(ManagerServlet.java:1471) at org.apache.catalina.manager.ManagerServlet.deploy(ManagerServlet.java:824) at org.apache.catalina.manager.ManagerServlet.doGet(ManagerServlet.java:350) at javax.servlet.http.HttpServlet.service(HttpServlet.java:617) at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:196) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:525) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:845) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447) at java.lang.Thread.run(Thread.java:619) Caused by: java.lang.NoSuchMethodError: org.objectweb.asm.ClassWriter.(I)V at net.sf.cglib.core.DebuggingClassWriter.(DebuggingClassWriter.java:47) at net.sf.cglib.core.DefaultGeneratorStrategy.getClassWriter(DefaultGeneratorStrategy.java:30) at net.sf.cglib.core.DefaultGeneratorStrategy.generate(DefaultGeneratorStrategy.java:24) at net.sf.cglib.core.AbstractClassGenerator.create(AbstractClassGenerator.java:216) at net.sf.cglib.core.KeyFactory$Generator.create(KeyFactory.java:144) at net.sf.cglib.core.KeyFactory.create(KeyFactory.java:116) at net.sf.cglib.core.KeyFactory.create(KeyFactory.java:108) at net.sf.cglib.core.KeyFactory.create(KeyFactory.java:104) at net.sf.cglib.proxy.Enhancer.(Enhancer.java:69) at org.hibernate.proxy.pojo.cglib.CGLIBLazyInitializer.getProxyFactory(CGLIBLazyInitializer.java:117) at org.hibernate.proxy.pojo.cglib.CGLIBProxyFactory.postInstantiate(CGLIBProxyFactory.java:43) at org.hibernate.tuple.entity.PojoEntityTuplizer.buildProxyFactory(PojoEntityTuplizer.java:162) at org.hibernate.tuple.entity.AbstractEntityTuplizer.(AbstractEntityTuplizer.java:135) at org.hibernate.tuple.entity.PojoEntityTuplizer.(PojoEntityTuplizer.java:55) at org.hibernate.tuple.entity.EntityEntityModeToTuplizerMapping.(EntityEntityModeToTuplizerMapping.java:56) at org.hibernate.tuple.entity.EntityMetamodel.(EntityMetamodel.java:302) at org.hibernate.persister.entity.AbstractEntityPersister.(AbstractEntityPersister.java:434) at org.hibernate.persister.entity.SingleTableEntityPersister.(SingleTableEntityPersister.java:108) at org.hibernate.persister.PersisterFactory.createClassPersister(PersisterFactory.java:61) at org.hibernate.impl.SessionFactoryImpl.(SessionFactoryImpl.java:238) at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1304) at org.springframework.orm.hibernate3.LocalSessionFactoryBean.newSessionFactory(LocalSessionFactoryBean.java:813) at org.springframework.orm.hibernate3.LocalSessionFactoryBean.buildSessionFactory(LocalSessionFactoryBean.java:731) at org.springframework.orm.hibernate3.AbstractSessionFactoryBean.afterPropertiesSet(AbstractSessionFactoryBean.java:211) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1454) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1392) ... 48 more Mar 12, 2010 5:32:28 PM org.apache.catalina.core.StandardContext start SEVERE: Error listenerStart

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  • What's the best Communication Pattern for EJB3-based applications?

    - by Hank
    I'm starting a JEE project that needs to be strongly scalable. So far, the concept was: several Message Driven Beans, responsible for different parts of the architecture each MDB has a Session Bean injected, handling the business logic a couple of Entity Beans, providing access to the persistence layer communication between the different parts of the architecture via Request/Reply concept via JMS messages: MDB receives msg containing activity request uses its session bean to execute necessary business logic returns response object in msg to original requester The idea was that by de-coupling parts of the architecture from each other via the message bus, there is no limit to the scalability. Simply start more components - as long as they are connected to the same bus, we can grow and grow. Unfortunately, we're having massive problems with the request-reply concept. Transaction Mgmt seems to be in our way plenty. It seams that session beans are not supposed to consume messages?! Reading http://blogs.sun.com/fkieviet/entry/request_reply_from_an_ejb and http://forums.sun.com/message.jspa?messageID=10338789, I get the feeling that people actually recommend against the request/reply concept for EJBs. If that is the case, how do you communicate between your EJBs? (Remember, scalability is what I'm after) Details of my current setup: MDB 1 'TestController', uses (local) SLSB 1 'TestService' for business logic TestController.onMessage() makes TestService send a message to queue XYZ and requests a reply TestService uses Bean Managed Transactions TestService establishes a connection & session to the JMS broker via a joint connection factory upon initialization (@PostConstruct) TestService commits the transaction after sending, then begins another transaction and waits 10 sec for the response Message gets to MDB 2 'LocationController', which uses (local) SLSB 2 'LocationService' for business logic LocationController.onMessage() makes LocationService send a message back to the requested JMSReplyTo queue Same BMT concept, same @PostConstruct concept all use the same connection factory to access the broker Problem: The first message gets send (by SLSB 1) and received (by MDB 2) ok. The sending of the returning message (by SLSB 2) is fine as well. However, SLSB 1 never receives anything - it just times out. I tried without the messageSelector, no change, still no receiving message. Is it not ok to consume message by a session bean? SLSB 1 - TestService.java @Resource(name = "jms/mvs.MVSControllerFactory") private javax.jms.ConnectionFactory connectionFactory; @PostConstruct public void initialize() { try { jmsConnection = connectionFactory.createConnection(); session = jmsConnection.createSession(false, Session.AUTO_ACKNOWLEDGE); System.out.println("Connection to JMS Provider established"); } catch (Exception e) { } } public Serializable sendMessageWithResponse(Destination reqDest, Destination respDest, Serializable request) { Serializable response = null; try { utx.begin(); Random rand = new Random(); String correlationId = rand.nextLong() + "-" + (new Date()).getTime(); // prepare the sending message object ObjectMessage reqMsg = session.createObjectMessage(); reqMsg.setObject(request); reqMsg.setJMSReplyTo(respDest); reqMsg.setJMSCorrelationID(correlationId); // prepare the publishers and subscribers MessageProducer producer = session.createProducer(reqDest); // send the message producer.send(reqMsg); System.out.println("Request Message has been sent!"); utx.commit(); // need to start second transaction, otherwise the first msg never gets sent utx.begin(); MessageConsumer consumer = session.createConsumer(respDest, "JMSCorrelationID = '" + correlationId + "'"); jmsConnection.start(); ObjectMessage respMsg = (ObjectMessage) consumer.receive(10000L); utx.commit(); if (respMsg != null) { response = respMsg.getObject(); System.out.println("Response Message has been received!"); } else { // timeout waiting for response System.out.println("Timeout waiting for response!"); } } catch (Exception e) { } return response; } SLSB 2 - LocationService.Java (only the reply method, rest is same as above) public boolean reply(Message origMsg, Serializable o) { boolean rc = false; try { // check if we have necessary correlationID and replyTo destination if (!origMsg.getJMSCorrelationID().equals("") && (origMsg.getJMSReplyTo() != null)) { // prepare the payload utx.begin(); ObjectMessage msg = session.createObjectMessage(); msg.setObject(o); // make it a response msg.setJMSCorrelationID(origMsg.getJMSCorrelationID()); Destination dest = origMsg.getJMSReplyTo(); // send it MessageProducer producer = session.createProducer(dest); producer.send(msg); producer.close(); System.out.println("Reply Message has been sent"); utx.commit(); rc = true; } } catch (Exception e) {} return rc; } sun-resources.xml <admin-object-resource enabled="true" jndi-name="jms/mvs.LocationControllerRequest" res-type="javax.jms.Queue" res-adapter="jmsra"> <property name="Name" value="mvs.LocationControllerRequestQueue"/> </admin-object-resource> <admin-object-resource enabled="true" jndi-name="jms/mvs.LocationControllerResponse" res-type="javax.jms.Queue" res-adapter="jmsra"> <property name="Name" value="mvs.LocationControllerResponseQueue"/> </admin-object-resource> <connector-connection-pool name="jms/mvs.MVSControllerFactoryPool" connection-definition-name="javax.jms.QueueConnectionFactory" resource-adapter-name="jmsra"/> <connector-resource enabled="true" jndi-name="jms/mvs.MVSControllerFactory" pool-name="jms/mvs.MVSControllerFactoryPool" />

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  • Why is android:FLAG_BLUR_BEHIND creating a gradient background in my new activity instead of bluring

    - by nderraugh
    Hi, I've got two activities. One is supposed to be a blur in front of the other. The background activity has several ImageViews which are set up as thin gradients extending across most of the screen and 10dip high. When I start the second activity it sets the background as a gradient occupying the entire window space, that is it appears to be fill_parent'd for both height and width. If I comment out the ImageViews then it blurs and looks as expected. Any thoughts? Here's the code doing the blur. import android.app.Activity; import android.os.Bundle; import android.view.View; import android.view.WindowManager; import android.view.View.OnClickListener; public class TransluscentBlurSummaryB extends Activity { @Override protected void onCreate(Bundle icicle) { super.onCreate(icicle); getWindow().setFlags(WindowManager.LayoutParams.FLAG_BLUR_BEHIND, WindowManager.LayoutParams.FLAG_BLUR_BEHIND); getWindow().getAttributes().dimAmount = 0.5f; getWindow().setFlags(WindowManager.LayoutParams.FLAG_DIM_BEHIND, WindowManager.LayoutParams.FLAG_DIM_BEHIND); setContentView(R.layout.sheetbdetails); OnClickListener clickListener = new OnClickListener() { public void onClick(View v) { TransluscentBlurSummaryB.this.finish(); } }; findViewById(R.id.sheetbdetailstable).setOnClickListener(clickListener); } } And here's the layout with the ImageView gradients. <?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:id="@+id/summarysparent" > <!-- view1 goes on top --> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/view2" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_alignParentBottom="true"> <Button android:layout_height="wrap_content" android:id="@+id/ButtonBack" android:layout_width="wrap_content" android:text="Back" android:width="100dp"></Button> <Button android:layout_height="wrap_content" android:id="@+id/ButtonNext" android:layout_width="wrap_content" android:layout_alignParentRight="true" android:text="Start Over" android:width="100dp"></Button> </RelativeLayout> <TextView android:id="@+id/view1" android:layout_height="wrap_content" android:layout_alignParentTop="true" android:layout_width="wrap_content" android:layout_centerHorizontal="true" android:textSize="10pt" android:text="Summary"/> <ScrollView xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="wrap_content" android:id="@+id/summaryscrollview" android:layout_below="@+id/view1" android:layout_above="@+id/view2"> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="wrap_content" android:id="@+id/summarydetails" > <!-- view2 goes on the bottom --> <TextView android:id="@+id/textview2" android:layout_height="wrap_content" android:layout_width="wrap_content" android:layout_below="@+id/view1" android:layout_centerHorizontal="true" android:text="Recommended Child Support Order" android:layout_marginTop="10dip" /> <ImageView android:id="@+id/horizontalLine1" android:layout_width="fill_parent" android:layout_marginLeft="5dip" android:layout_marginRight="5dip" android:layout_height="10dip" android:src="@drawable/black_white_gradient" android:layout_below="@+id/textview2" android:layout_marginTop="10dip" /> <TextView android:id="@+id/textview3" android:layout_height="wrap_content" android:layout_width="wrap_content" android:layout_below="@+id/horizontalLine1" android:layout_centerHorizontal="true" android:text="You" android:layout_marginTop="10dip" /> <TextView android:id="@+id/textview10" android:layout_height="wrap_content" android:layout_width="150dp" android:layout_below="@+id/textview3" android:layout_centerHorizontal="true" android:layout_marginTop="10dip" android:gravity="center_horizontal" /> <ImageView android:id="@+id/horizontalLine2" android:layout_width="fill_parent" android:layout_marginLeft="5dip" android:layout_marginRight="5dip" android:layout_height="10dip" android:src="@drawable/black_white_gradient" android:layout_below="@+id/textview10" android:layout_marginTop="10dip" /> <TextView android:id="@+id/textview4" android:layout_height="wrap_content" android:layout_width="wrap_content" android:layout_below="@+id/horizontalLine2" android:layout_centerHorizontal="true" android:text="Other Parent" android:layout_marginTop="10dip" /> <TextView android:id="@+id/textview11" android:layout_height="wrap_content" android:layout_width="150dp" android:layout_below="@+id/textview4" android:layout_centerHorizontal="true" android:layout_marginTop="10dip" android:text="$536.18" android:gravity="center_horizontal" /> <ImageView android:id="@+id/horizontalLine3" android:layout_width="fill_parent" android:layout_marginLeft="5dip" android:layout_marginRight="5dip" android:layout_height="10dip" android:src="@drawable/black_white_gradient" android:layout_below="@+id/textview11" android:layout_marginTop="10dip" /> <TextView android:id="@+id/textview5" android:layout_height="wrap_content" android:layout_width="wrap_content" android:layout_below="@+id/horizontalLine3" android:layout_centerHorizontal="true" android:text="Calculation Details" android:layout_marginTop="15dip" /> <ImageView android:id="@+id/infoButton" android:src="@drawable/ic_menu_info_details" android:layout_height="wrap_content" android:layout_width="wrap_content" android:layout_below="@+id/horizontalLine3" android:layout_toRightOf="@+id/textview5" android:clickable="true" /> <ImageView android:id="@+id/horizontalLine4" android:layout_width="fill_parent" android:layout_marginLeft="5dip" android:layout_marginRight="5dip" android:layout_height="10dip" android:src="@drawable/black_white_gradient" android:layout_below="@+id/textview5" android:layout_marginTop="18dip" /> </RelativeLayout> </ScrollView> </RelativeLayout> The gradient drawable is this. <?xml version="1.0" encoding="utf-8"?> <shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="rectangle"> <gradient android:startColor="#FFFFFF" android:centerColor="#000000" android:endColor="#FFFFFF" android:angle="270"/> <padding android:left="7dp" android:top="7dp" android:right="7dp" android:bottom="7dp" /> <corners android:radius="8dp" /> </shape> And here's the layout from the activity doing the blurring on top. <?xml version="1.0" encoding="utf-8"?> <ScrollView xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/sheetbdetails" android:layout_width="fill_parent" android:layout_height="fill_parent" android:clickable="true" > <TableLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:scrollbars="vertical" android:shrinkColumns="0" android:id="@+id/sheetbdetailstable" > <TableRow> <TextView android:padding="3dip" /> <TextView android:text="You" android:padding="3dip" /> <TextView android:text="@string/otherparent" android:padding="3dip" /> <TextView android:text="Combined" android:padding="3dip" /> </TableRow> </TableLayout> </ScrollView> The transparent windows are themed from styles.xml in the apidemos using @style/Theme.Transparent.

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  • Bound Command not firing on another viewModel? What Am I doing wrong?

    - by devnet247
    Hi I cannot seem to bind a command to a button.I have a treeview on the left showing Country City etc.. And I tabcontrol on the right. do I This uses 4 viewModels rootviewModel-ContinentViewModel-CountryViewModel-CityViewModel What I am building is based on http://www.codeproject.com/KB/WPF/TreeViewWithViewModel.aspx Now on one of the tabs I have a Toolbar with a button "TestButton" that I have mapped in zaml. This does not fire! The reason is not firing is because I m binding the RootViewModel but the command that is bound in zaml is in the cityViewModel. How Do I pass the datacontext from one view to the other? or how do I make the button fire. I need the command to be in the cityViewModel. Any Suggestions on how I bind it? View "WorldExplorerView" where I bind the main DataContext public partial class WorldExplorerView { public WorldExplorerView() { InitializeComponent(); var continents = Database.GetContinents(); var rootViewModel = new RootViewModel(continents); DataContext = rootViewModel; } } CityViewModel public class CityViewModel : TreeViewItemViewModel { private City _city; private RelayCommand _testCommand; public CityViewModel(City city, CountryViewModel countryViewModel):base(countryViewModel,false) { _city = city; } Properties etc...... public ICommand TestCommand { get { if(_testCommand==null) { _testCommand = new RelayCommand(param => GetTestCommand(), param => CanCallTestCommand); ; } return _testCommand; } } protected bool CanCallTestCommand { get { return true; } } private static void GetTestCommand() { MessageBox.Show("It works"); } } ZAML <DockPanel> <DockPanel LastChildFill="True"> <Label DockPanel.Dock="top" Content="Title " HorizontalAlignment="Center"></Label> <StatusBar DockPanel.Dock="Bottom"> <StatusBarItem Content="Status Bar" ></StatusBarItem> </StatusBar> <Grid DockPanel.Dock="Top"> <Grid.ColumnDefinitions> <ColumnDefinition/> <ColumnDefinition Width="Auto"/> <ColumnDefinition Width="2*"/> </Grid.ColumnDefinitions> <TreeView Name="tree" ItemsSource="{Binding Continents}"> <TreeView.ItemContainerStyle> <Style TargetType="{x:Type TreeViewItem}"> <Setter Property="IsExpanded" Value="{Binding IsExpanded,Mode=TwoWay}"/> <Setter Property="IsSelected" Value="{Binding IsSelected,Mode=TwoWay}"/> <Setter Property="FontWeight" Value="Normal"/> <Style.Triggers> <Trigger Property="IsSelected" Value="True"> <Setter Property="FontWeight" Value="Bold"></Setter> </Trigger> </Style.Triggers> </Style> </TreeView.ItemContainerStyle> <TreeView.Resources> <HierarchicalDataTemplate DataType="{x:Type ViewModels:ContinentViewModel}" ItemsSource="{Binding Children}"> <StackPanel Orientation="Horizontal"> <Image Width="16" Height="16" Margin="3,0" Source="Images\Continent.png"/> <TextBlock Text="{Binding ContinentName}"/> </StackPanel> </HierarchicalDataTemplate> <HierarchicalDataTemplate DataType="{x:Type ViewModels:CountryViewModel}" ItemsSource="{Binding Children}"> <StackPanel Orientation="Horizontal"> <Image Width="16" Height="16" Margin="3,0" Source="Images\Country.png"/> <TextBlock Text="{Binding CountryName}"/> </StackPanel> </HierarchicalDataTemplate> <DataTemplate DataType="{x:Type ViewModels:CityViewModel}" > <StackPanel Orientation="Horizontal"> <Image Width="16" Height="16" Margin="3,0" Source="Images\City.png"/> <TextBlock Text="{Binding CityName}"/> </StackPanel> </DataTemplate> </TreeView.Resources> </TreeView> <GridSplitter Grid.Row="0" Grid.Column="1" Background="LightGray" Width="5" HorizontalAlignment="Stretch" VerticalAlignment="Stretch"/> <Grid Grid.Column="2" Margin="5" > <TabControl> <TabItem Header="Demo"> <DockPanel LastChildFill="True"> <ToolBar DockPanel.Dock="Top"> <!-- DOES NOT WORK--> <Button Name="btnTest" Command="{Binding TestCommand}" Content="Press me see if works"></Button> </ToolBar> <TextBox></TextBox> </DockPanel> </TabItem> <TabItem Header="Details" DataContext="{Binding Path=SelectedItem.City, ElementName=tree, Mode=OneWay}"> <StackPanel > <TextBlock VerticalAlignment="Center" FontSize="12" Text="{Binding CityName}"/> <TextBlock VerticalAlignment="Center" FontSize="12" Text="{Binding Area}"/> <TextBlock VerticalAlignment="Center" FontSize="12" Text="{Binding Population}"/> <TextBlock VerticalAlignment="Center" FontSize="12" Text="{Binding CityDetailsInfo.ClubsCount}"/> <TextBlock VerticalAlignment="Center" FontSize="12" Text="{Binding CityDetailsInfo.PubsCount}"/> </StackPanel> </TabItem> </TabControl> </Grid> </Grid> </DockPanel> </DockPanel>

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  • treeview binding wpf cannot bind nested property in a class

    - by devnet247
    Hi all New to wpf and therefore struggling a bit. I am putting together a quick demo before we go for the full implementation I have a treeview on the left with Continent Country City structure when a user select the city it should populate some textboxes in a tabcontrol on the right hand side I made it sort of work but cannot make it work with composite objects. In a nutshell can you spot what is wrong with my zaml or code. Why is not binding to a my CityDetails.ClubsCount or CityDetails.PubsCount? What I am building is based on http://www.codeproject.com/KB/WPF/TreeViewWithViewModel.aspx Thanks a lot for any suggestions or reply DataModel public class City { public City(string cityName) { CityName = cityName; } public string CityName { get; set; } public string Population { get; set; } public string Area { get; set; } public CityDetails CityDetailsInfo { get; set; } } public class CityDetails { public CityDetails(int pubsCount,int clubsCount) { PubsCount = pubsCount; ClubsCount = clubsCount; } public int ClubsCount { get; set; } public int PubsCount { get; set; } } ViewModel public class CityViewModel : TreeViewItemViewModel { private City _city; private RelayCommand _testCommand; public CityViewModel(City city, CountryViewModel countryViewModel):base(countryViewModel,false) { _city = city; } public string CityName { get { return _city.CityName; } } public string Area { get { return _city.Area; } } public string Population { get { return _city.Population; } } public City City { get { return _city; } set { _city = value; } } public CityDetails CityDetailsInfo { get { return _city.CityDetailsInfo; } set { _city.CityDetailsInfo = value; } } } XAML <DockPanel> <DockPanel LastChildFill="True"> <Label DockPanel.Dock="top" Content="Title " HorizontalAlignment="Center"></Label> <StatusBar DockPanel.Dock="Bottom"> <StatusBarItem Content="Status Bar" ></StatusBarItem> </StatusBar> <Grid DockPanel.Dock="Top"> <Grid.ColumnDefinitions> <ColumnDefinition/> <ColumnDefinition Width="Auto"/> <ColumnDefinition Width="2*"/> </Grid.ColumnDefinitions> <TreeView Name="tree" ItemsSource="{Binding Continents}"> <TreeView.ItemContainerStyle> <Style TargetType="{x:Type TreeViewItem}"> <Setter Property="IsExpanded" Value="{Binding IsExpanded,Mode=TwoWay}"/> <Setter Property="IsSelected" Value="{Binding IsSelected,Mode=TwoWay}"/> <Setter Property="FontWeight" Value="Normal"/> <Style.Triggers> <Trigger Property="IsSelected" Value="True"> <Setter Property="FontWeight" Value="Bold"></Setter> </Trigger> </Style.Triggers> </Style> </TreeView.ItemContainerStyle> <TreeView.Resources> <HierarchicalDataTemplate DataType="{x:Type ViewModels:ContinentViewModel}" ItemsSource="{Binding Children}"> <StackPanel Orientation="Horizontal"> <Image Width="16" Height="16" Margin="3,0" Source="Images\Continent.png"/> <TextBlock Text="{Binding ContinentName}"/> </StackPanel> </HierarchicalDataTemplate> <HierarchicalDataTemplate DataType="{x:Type ViewModels:CountryViewModel}" ItemsSource="{Binding Children}"> <StackPanel Orientation="Horizontal"> <Image Width="16" Height="16" Margin="3,0" Source="Images\Country.png"/> <TextBlock Text="{Binding CountryName}"/> </StackPanel> </HierarchicalDataTemplate> <DataTemplate DataType="{x:Type ViewModels:CityViewModel}" > <StackPanel Orientation="Horizontal"> <Image Width="16" Height="16" Margin="3,0" Source="Images\City.png"/> <TextBlock Text="{Binding CityName}"/> </StackPanel> </DataTemplate> </TreeView.Resources> </TreeView> <GridSplitter Grid.Row="0" Grid.Column="1" Background="LightGray" Width="5" HorizontalAlignment="Stretch" VerticalAlignment="Stretch"/> <Grid Grid.Column="2" Margin="5" > <TabControl> <TabItem Header="Details" DataContext="{Binding Path=SelectedItem.City, ElementName=tree, Mode=OneWay}"> <StackPanel > <TextBlock VerticalAlignment="Center" FontSize="12" Text="{Binding CityName}"/> <TextBlock VerticalAlignment="Center" FontSize="12" Text="{Binding Area}"/> <TextBlock VerticalAlignment="Center" FontSize="12" Text="{Binding Population}"/> <!-- DONT WORK WHY--> <TextBlock VerticalAlignment="Center" FontSize="12" Text="{Binding SelectedItem.CityDetailsInfo.ClubsCount}"/> <TextBlock VerticalAlignment="Center" FontSize="12" Text="{Binding SelectedItem.CityDetailsInfo.PubsCount}"/> </StackPanel> </TabItem> </TabControl> </Grid> </Grid> </DockPanel> </DockPanel>

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  • Fail to analyze core dump with GDB when main.elf is dynamically linked (uses shared libs)

    - by dscTobi
    Hi all. I'm trying to analyze core dump, but i get following result: GNU gdb 6.6.0.20070423-cvs Copyright (C) 2006 Free Software Foundation, Inc. GDB is free software, covered by the GNU General Public License, and you are welcome to change it and/or distribute copies of it under certain conditions. Type "show copying" to see the conditions. There is absolutely no warranty for GDB. Type "show warranty" for details. This GDB was configured as "--host=mipsel-linux --target=mipsel-linux-uclibc". (gdb) file main.elf Reading symbols from /home/tobi/main.elf...Reading symbols from /home/tobi/main.dbg...done. done. (gdb) core-file /srv/tobi/core warning: .dynamic section for "/lib/libpthread.so.0" is not at the expected address (wrong library or version mismatch?) Error while mapping shared library sections: /lib/libdl.so.0: No such file or directory. Error while mapping shared library sections: /lib/librt.so.0: No such file or directory. Error while mapping shared library sections: /lib/libm.so.0: No such file or directory. Error while mapping shared library sections: /lib/libstdc++.so.6: No such file or directory. Error while mapping shared library sections: /lib/libc.so.0: No such file or directory. warning: .dynamic section for "/lib/libgcc_s.so.1" is not at the expected address (wrong library or version mismatch?) Error while mapping shared library sections: /lib/ld-uClibc.so.0: No such file or directory. Reading symbols from /lib/libpthread.so.0...done. Loaded symbols for /lib/libpthread.so.0 Symbol file not found for /lib/libdl.so.0 Symbol file not found for /lib/librt.so.0 Symbol file not found for /lib/libm.so.0 Symbol file not found for /lib/libstdc++.so.6 Symbol file not found for /lib/libc.so.0 Reading symbols from /lib/libgcc_s.so.1...done. Loaded symbols for /lib/libgcc_s.so.1 Symbol file not found for /lib/ld-uClibc.so.0 warning: Unable to find dynamic linker breakpoint function. GDB will be unable to debug shared library initializers and track explicitly loaded dynamic code. Core was generated by 'root/main.elf'. Program terminated with signal 11, Segmentation fault. #0 0x0046006c in NullPtr (parse_p=0x2ac9dc80, result_sym_p=0x13e3d6c "") at folder/my1.c:1624 1624 *ptr += 13; (gdb) bt #0 0x0046006c in NullPtr (parse_p=0x2ac9dc80, result_sym_p=0x13e3d6c "") at folder/my1.c:1624 #1 0x0047a31c in fn1 (line_ptr=0x2ac9dd18 "ccore_null_pointer", target_ptr=0x13e3d6c "", result_ptr=0x2ac9dd14) at folder/my2.c:980 #2 0x0047b9d0 in fn2 (macro_ptr=0x0, rtn_exp_ptr=0x0) at folder/my3.c:1483 /... some functions .../ #8 0x2aab7f9c in __nptl_setxid () from /lib/libpthread.so.0 Backtrace stopped: frame did not save the PC (gdb) thread apply all bt Thread 159 (process 1093): #0 0x2aac15dc in _Unwind_GetCFA () from /lib/libpthread.so.0 #1 0x2afdfde8 in ?? () warning: GDB cant find the start of the function at 0x2afdfde8. GDB is unable to find the start of the function at 0x2afdfde8 and thus cant determine the size of that functions stack frame. This means that GDB may be unable to access that stack frame, or the frames below it. This problem is most likely caused by an invalid program counter or stack pointer. However, if you think GDB should simply search farther back from 0x2afdfde8 for code which looks like the beginning of a function, you can increase the range of the search using the set heuristic-fence-post command. Backtrace stopped: previous frame inner to this frame (corrupt stack?) Thread 158 (process 1051): #0 0x2aac17bc in pthread_mutexattr_getprioceiling () from /lib/libpthread.so.0 #1 0x2aac17a0 in pthread_mutexattr_getprioceiling () from /lib/libpthread.so.0 Backtrace stopped: previous frame identical to this frame (corrupt stack?) Thread 157 (process 1057): #0 0x2aabf908 in ?? () from /lib/libpthread.so.0 #1 0x00000000 in ?? () Thread 156 (process 1090): #0 0x2aac17bc in pthread_mutexattr_getprioceiling () from /lib/libpthread.so.0 #1 0x2aac17a0 in pthread_mutexattr_getprioceiling () from /lib/libpthread.so.0 Backtrace stopped: previous frame identical to this frame (corrupt stack?) Thread 155 (process 1219): #0 0x2aabf908 in ?? () from /lib/libpthread.so.0 #1 0x00000000 in ?? () Thread 154 (process 1218): #0 0x2aabfb44 in connect () from /lib/libpthread.so.0 #1 0x00000000 in ?? () Thread 153 (process 1096): #0 0x2abc92b4 in ?? () warning: GDB cant find the start of the function at 0x2abc92b4. #1 0x2abc92b4 in ?? () warning: GDB cant find the start of the function at 0x2abc92b4. Backtrace stopped: previous frame identical to this frame (corrupt stack?) Thread 152 (process 1170): #0 0x2aabfb44 in connect () from /lib/libpthread.so.0 #1 0x00000000 in ?? () If i make main.elf statically linked everything is OK and i can see bt of all threads. Any ideas?

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  • Themes wont work when using Server Side Tags on an ASP.NET Page

    - by Sumit Sharma
    The code for the asp.net page is: <div class="facebox_content"> <% if (CurrentUser.Role == "Free") { %> <table cellpadding="0" cellspacing="0" style="border-collapse:collapse;width:380px;"> <tr> <td> User Name : </td> <td> Membership Cost : </td> </tr> <tr> <td style="width:190px;"> <asp:TextBox ID="txtUserName" Enabled="false" runat="server" Text="<%= CurrentUser.Name %>"/> </td> <td style="width:190px;"> <asp:TextBox ID="txtCost" Enabled="false" runat="server" Text="2000"/> </td> </tr> <tr> <td> <br /> Cheque / Draft No.: </td> <td> <br /> Bank Drawn On : </td> </tr> <tr> <td style="width:190px;"> <asp:TextBox ID="txtChqNo" runat="server"></asp:TextBox> </td> <td style="width:190px;"> <asp:TextBox ID="txtBankName" runat="server"></asp:TextBox> </td> </tr> <tr> <td> <br /> Date : </td> <td> <br /> City : </td> </tr> <tr> <td style="width:190px;"> <asp:TextBox ID="txtDate" runat="server"></asp:TextBox> </td> <td style="width:190px;"> <asp:TextBox ID="txtCity" runat="server"></asp:TextBox> </td> </tr> </table> <% } else if(CurrentUser.Role == "Pending") { %> <p style="text-align:justify;"> Your Request is pending with our Administrators. Please be patient while your request is processed. Usually it takes 2-4 Days for your request to be processed after the payment has been received. </p> <% } else if(CurrentUser.Role == "Paid") { %> <p style="text-align:justify;"> You are already a Paid Member of Website </p> <% } %> The code for the C# file is: protected void Page_PreInit(object sender, EventArgs e) { this.Theme = CurrentUser.Theme; } protected void Page_Load(object sender, EventArgs e) { txtUserName.Text = CurrentUser.Name; ConfirmButton.Attributes.Add("onclick", "javascript:document.getElementById('" + lblMsg.ClientID + "').style.display='none';"); if (CurrentUser.Role != "Free") ConfirmButton.Visible = false; } The code is giving the following error: The Controls collection cannot be modified because the control contains code blocks (i.e. <% ... %>). Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.Web.HttpException: The Controls collection cannot be modified because the control contains code blocks (i.e. <% ... %>). Source Error: An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below. Stack Trace: [HttpException (0x80004005): The Controls collection cannot be modified because the control contains code blocks (i.e. <% ... %>).] System.Web.UI.ControlCollection.Add(Control child) +8678903 System.Web.UI.PageTheme.SetStyleSheet() +478 System.Web.UI.Page.OnInit(EventArgs e) +8699660 System.Web.UI.Control.InitRecursive(Control namingContainer) +333 System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +378 Please some one help me out..!!

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