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• Is there a fully-functional dropdown replacement for HTML SELECT that works in IE?

  - by Ken Paul

  We determined in a previous question that many features of HTML SELECTs are not supported in IE. Is there an alternative widget that you would recommend from your experience that meets the following requirements? Respects the contentEditable property (does not allow selection changes if true) Respects the disabled property of individual OPTIONs (shows them "grayed out" or with strike-through font, and makes them un-selectable) Supports Option Groups (OPTGROUP elements) Supports style options such as border and margin in the SELECT and all sub-elements Supports dynamic add and delete of OPTION and OPTGROUP elements Supports the above in IE version 6 and above EDIT: As noted by @Joel Coehoorn, items 3 and 5 above are currently supported in IE. They are included here to make sure they are not overlooked in a replacement widget.

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• How is WPF Data Binding using Object Data Source in Visual Studio 2010 done?

  - by Rob Perkins

  This is probably mostly a question about how to use the VS 2010 IDE tools in a way the Microsofties didn't specifically intend. But since this is something I immediately tried without success. I have defined a .NET 4.0 WPF Application project with a simple class that looks like this: Public Class Class1 Public Property One As String = "OneString" Public Property Two As String = "TwoString" End Class I then defined it as an "Object Data Source" in VS2010, using the IDE's "Add New Data Source..." feature. This exposes the class members in a GUI element in the IDE as given in this image: Dragging "Class1" from that tool to the surface of "Window1.xaml" in a default "WPF Application" results in the design view looking like this: And generated XAML like this: <Window x:Class="Window1" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Title="Window1" Height="133" Width="170" xmlns:my="clr-namespace:WpfApplication1" mc:Ignorable="d" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" > <Window.Resources> <CollectionViewSource x:Key="Class1ViewSource" d:DesignSource="{d:DesignInstance my:Class1, CreateList=True}" /> </Window.Resources> <Grid DataContext="{StaticResource Class1ViewSource}" HorizontalAlignment="Left" Name="Grid1" VerticalAlignment="Top"> <Grid.ColumnDefinitions> <ColumnDefinition Width="Auto" /> <ColumnDefinition Width="Auto" /> </Grid.ColumnDefinitions> <Grid.RowDefinitions> <RowDefinition Height="Auto" /> <RowDefinition Height="Auto" /> </Grid.RowDefinitions> <Label Content="One:" Grid.Column="0" Grid.Row="0" HorizontalAlignment="Left" Margin="3" VerticalAlignment="Center" /> <TextBlock Grid.Column="1" Grid.Row="0" Height="23" HorizontalAlignment="Left" Margin="3" Name="OneTextBlock" Text="{Binding Path=One}" VerticalAlignment="Center" /> <Label Content="Two:" Grid.Column="0" Grid.Row="1" HorizontalAlignment="Left" Margin="3" VerticalAlignment="Center" /> <TextBlock Grid.Column="1" Grid.Row="1" Height="23" HorizontalAlignment="Left" Margin="3" Name="TwoTextBlock" Text="{Binding Path=Two}" VerticalAlignment="Center" /> </Grid> Note the data bindings Text="{Binding Path=One}" and Text="{Binding Path=Two}" in the TextBlock elements. Code-behind for Window1.xaml has this in Window_Loaded: Class Window1 Private m_c1 As New Class1 Private Sub Window1_Loaded(ByVal sender As Object, ByVal e As System.Windows.RoutedEventArgs) Handles Me.Loaded Dim Class1ViewSource As System.Windows.Data.CollectionViewSource = CType(Me.FindResource("Class1ViewSource"), System.Windows.Data.CollectionViewSource) 'Load data by setting the CollectionViewSource.Source property: 'Class1ViewSource.Source = [generic data source] Me.DataContext = m_c1 End Sub End Class Running the application produces this output: The expected result was that "OneString" would appear next to "One" and "TwoString" next to "Two" in the running window. The question is: Why didn't this work? What will work instead? If I put bindings in a DataTemplate, it works. Blend, with its sample data stuff, implied that this should work, but it doesn't. I know I'm missing something pretty fundamental here; what is it?

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• Unresolved Host Exception Android

  - by Rob Stevenson-Leggett

  I'm trying to call a RESTful web service from an Android application using the following method: HttpHost target = new HttpHost("http://" + ServiceWrapper.SERVER_HOST,ServiceWrapper.SERVER_PORT); HttpGet get = new HttpGet("/list"); String result=null; HttpEntity entity = null; HttpClient client = new DefaultHttpClient(); try { HttpResponse response=client.execute(target, get); entity = response.getEntity(); result = EntityUtils.toString(entity); } catch (Exception e) { e.printStackTrace(); } finally { if (entity!=null) try { entity.consumeContent(); } catch (IOException e) {} } return result; I can browse to address and see the xml results using the Android Emulator browser and from my machine. I have given my app the INTERNET permission. I'm developing with eclipse. I've seen it mentioned that I might need to configure a proxy but since the web service i'm calling is on port 80 this shouldn't matter should it? I can call the method with the browser. Any ideas?

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• python mechanize.browser submit() related problem

  - by paul

  Hello All im making some script with mechanize.browser module. one of problem is all other thing is ok, but when submit() form,it not working, so i was found some suspicion source part. in the html source i was found such like following. <form method="post" onsubmit="return loginCheck(this)" name="FRMLOGIN"/> im thinking, loginCheck(this) making problem when submit form. but how to handle this kind of javascript function with mechanize module ,so i can successfully submit form and can receive result? folloing is my current script source. if anyone can help me ..much appreciate!! # -*- coding: cp949-*- import sys,os import mechanize, urllib import cookielib from BeautifulSoup import BeautifulSoup,BeautifulStoneSoup,Tag import datetime, time, socket import re,sys,os,mechanize,urllib,time br = mechanize.Browser() cj = cookielib.LWPCookieJar() br.set_cookiejar(cj) # Browser options br.set_handle_equiv(True) br.set_handle_gzip(True) br.set_handle_redirect(True) br.set_handle_referer(True) br.set_handle_robots(False) # Follows refresh 0 but not hangs on refresh > 0 br.set_handle_refresh(mechanize._http.HTTPRefreshProcessor(), max_time=1) # Want debugging messages? br.set_debug_http(True) br.set_debug_redirects(True) br.set_debug_responses(True) # User-Agent (this is cheating, ok?) br.addheaders = [('User-agent', 'Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9.0.6')] br.open('http://user.buddybuddy.co.kr/Login/LoginForm.asp?URL=') html = br.response().read() print html br.select_form(name='FRMLOGIN') print br.viewing_html() br.form['ID']='zero1zero2' br.form['PWD']='012045' br.submit() print br.response().read()

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• Large Django application layout

  - by Rob Golding

  I am in a team developing a web-based university portal, which will be based on Django. We are still in the exploratory stages, and I am trying to find the best way to lay the project/development environment out. My initial idea is to develop the system as a Django "app", which contains sub-applications to separate out the different parts of the system. The reason I intended to make these "sub" applications is that they would not have any use outside the parent application whatsoever, so there would be little point in distributing them separately. We envisage that the portal will be installed in multiple locations (at different universities, for example) so the main app can be dropped into a number of Django projects to install it. We therefore have a different repository for each location's project, which is really just a settings.py file defining the installed portal applications, and a urls.py routing the urls to it. I have started to write some initial code, though, and I've come up against a problem. Some of the code that handles user authentication and profiles seems to be without a home. It doesn't conceptually belong in the portal application as it doesn't relate to the portal's functionality. It also, however, can't go in the project repository - as I would then be duplicating the code over each location's repository. If I then discovered a bug in this code, for example, I would have to manually replicate the fix over all of the location's project files. My idea for a fix is to make all the project repos a fork of a "master" location project, so that I can pull any changes from that master. I think this is messy though, and it means that I have one more repository to look after. I'm looking for a better way to achieve this project. Can anyone recommend a solution or a similar example I can take a look at? The problem seems to be that I am developing a Django project rather than just a Django application.

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• Facebook Application Tab URL

  - by Paul

  I have a facebook application that can be added to fan pages as a tab. The application requires that users are authenticated in order to use it. This can be accomplished by using requirelogin=1 in a link which is visible only to users who have NOT added the application. This part works fine. However, after the user has given my application permission from the dhtml pop up that requirelogin opens, I want the tab to reload. In order to do that, I need the full URL to be included in the link as follows: <a href="http://www.facebook.com/pages/PAGE_NAME/PAGE_ID?v=app_APP_ID" requirelogin=1>Authorize</a> I cannot figure out how to get the full url or, at least, the PAGE_NAME to build this url dynamically. Seems like the app should be able to know where it is without any special permissions.

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• Is there a way to set the amount of memory available in the iPhone Simulator?

  - by Rob Segal

  Does anyone know if its possible to set the amount of memory available in the simulator? I'm assuming the simulator will use as much memory as possible from the system but this makes it more difficult to recreate certain low memory crashes/bugs.

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• CALayer won't display

  - by Paul from Boston

  I'm trying to learn how to use CALayers for a project and am having trouble getting sublayers to display. I created a vanilla View-based iPhone app in XCode for these tests. The only real code is in the ViewController which sets up the layers and their delegates. There is a delegate, DelegateMainView, for the viewController's view layer and a second different one, DelegateStripeLayer, for an additional layer. The ViewController code is all in awakeFromNib, - (void)awakeFromNib { DelegateMainView *oknDelegate = [[DelegateMainView alloc] init]; self.view.layer.delegate = oknDelegate; CALayer *newLayer = [CALayer layer]; DelegateStripeLayer *sldDelegate = [[DelegateStripeLayer alloc] init]; newLayer.delegate = sldDelegate; [self.view.layer addSublayer:newLayer]; [newLayer setNeedsDisplay]; [self.view.layer setNeedsDisplay]; } The two different delegates are simply wrappers for the CALayer delegate method, drawLayer:inContext:, i.e., - (void)drawLayer:(CALayer *)layer inContext:(CGContextRef)context { CGRect bounds = CGContextGetClipBoundingBox(context); ... do some stuff here ... CGContextStrokePath(context); } each a bit different. The layer, view.layer, is drawn properly but newLayer is never drawn. If I put breakpoints in the two delegates, the program stops in DelegateMainView but never reaches DelegateStripeLayer. What am I missing here? Thanks.

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• How do I use Google protobuf to communicate over a serial port?

  - by rob

  I'm working on a project that uses RXTX and protobuf to communicate with an application on a development board and I've been running into issues which implies that I'm likely doing things the wrong way. Here's what I currently have for writing the request to the board (the read code is similar): public void write(CableCommandRequest request, OutputStream out) { CodedOutputStream outStream = CodedOutputStream.newInstance(out); request.writeTo(outStreatm); outStream.flush(); } The OutputStream that is used is prepared by RXTX and the development board seems to indicate that data is being received, but it is getting garbled or is otherwise not being understood. There seems to be little documentation on using protobuf over a serial connection so I'm assuming that passing the OutputStream should be sufficient. Is this in fact correct, or is this the wrong way of sending the response over the serial connection?

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• How get an Android ListPreference defined in Xml whose values are integers?

  - by Rob Kent

  Is it possible to define a ListPreference in Xml and retrieve the value from SharedPreferences using getInt? Here is my Xml: <ListPreference android:key="@string/prefGestureAccuracyKey" android:title="@string/prefGestureAccuracyTitle" android:summary="@string/prefGestureAccuracyDesc" android:entries="@array/prefNumberAccuracyLabels" android:entryValues="@array/prefNumberAccuracyValues" android:dialogTitle="@string/prefGestureAccuracyDialog" android:persistent="true" android:defaultValue="2" android:shouldDisableView="false" /> And I want to get the value with something like: int val = sharedPrefs.getInt(key, defaultValue). At the moment I have to use getString and parse the result.

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• iphone global variables accessed from different views

  - by Rob

  Okay, so ultimately I want a program where the user can input simple data such as their name, date of birth, address, etc. and then have that information stay through multiple views. I am having the user input their information as UITextFields but their are multiple views that they are using to input the data. Is there a way that when the user inputs data in a UITextField - then moves to another view - then returns to the original view - that the data will still be in that UITextField? I figure since there are placeholders that there must be a command to show previously written text in that field when the viewController is called. Also, for the life of me, I can't figure out how to keep these variables global. I have read in multiple areas that I should define them in the AppDelegate as a simple: NSString *userName; NSString *userDOB; But how do I assign the strings from the UITextFields in a different view to these variables and then re-assign them to the UITextFields when the user returns to the place where they originally input them? (I apologize if I am not explaining this coherently - I am a bit of a newb)

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• DataTable.Select Behaves Strangely Using ISNULL Operator on NULL DateTime Column

  - by Paul Williams

  I have a DataTable with a DateTime column, "DateCol", that can be DBNull. The DataTable has one row in it with a NULL value in this column. I am trying to query rows that have either DBNull value in this column or a date that is greater than today's date. Today's date is 5/11/2010. I built a query to select the rows I want, but it did not work as expected. The query was: string query = "ISNULL(DateCol, '" + DateTime.MaxValue + "'") > "' + DateTime.Today "'" This results in the following query: "ISNULL(DateCol, '12/31/9999 11:59:59 PM') > '5/11/2010'" When I run this query, I get no results. It took me a while to figure out why. What follows is my investigation in the Visual Studio immediate window: > dt.Rows.Count 1 > dt.Rows[0]["DateCol"] {} > dt.Rows[0]["DateCol"] == DBNull.Value true > dt.Select("ISNULL(DateCol,'12/31/9999 11:59:59 PM') > '5/11/2010'").Length 0 <-- I expected 1 Trial and error showed a difference in the date checks at the following boundary: > dt.Select("ISNULL(DateCol, '12/31/9999 11:59:59 PM') > '2/1/2000'").Length 0 > dt.Select("ISNULL(DateCol, '12/31/9999 11:59:59 PM') > '1/31/2000'").Length 1 <-- this was the expected answer The query works fine if I wrap the DateTime field in # instead of quotes. > dt.Select("ISNULL(DateCol, #12/31/9999#) > #5/11/2010#").Length 1 My machine's regional settings is currently set to EN-US, and the short date format is M/d/yyyy. Why did the original query return the wrong results? Why would it work fine if the date was compared against 1/31/2000 but not against 2/1/2000?

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• Is NSNumberFormatter the only way to format an NSDecimalNumber?

  - by Paul Alexander

  I'm using an NSDecimalNumber to store money in Core Data. I naively used stringWithFormat: at first to format the value, later realizing that it didn't support NSDecimalNumber and was instead formatting the pointer :(. So after some reading through the docs I learned to use the NSNumberFormatter to get the format I wanted. But this just strikes me as the "hard way". Is there any easier way than this:? NSNumberFormatter * formatter = [[NSNumberFormatter alloc] init]; [formatter setNumberStyle: NSNumberFormatterCurrencyStyle]; priceField.text = [formatter stringFromNumber: ent.price]; [formatter release];

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• .Net Custom Configuration Section and Saving Changes within PropertyGrid

  - by Paul

  If I load the My.Settings object (app.config) into a PropertyGrid, I am able to edit the property inside the propertygrid and the change is automatically saved. PropertyGrid1.SelectedObject = My.Settings I want to do the same with a Custom Configuration Section. Following this code example (from here http://www.codeproject.com/KB/vb/SerializePropertyGrid.aspx), he is doing explicit serialization to disk when a "Save" button is pushed. Public Class Form1 'Load AppSettings Dim _appSettings As New AppSettings() Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click _appSettings = AppSettings.Load() ' Actually change the form size Me.Size = _appSettings.WindowSize PropertyGrid1.SelectedObject = _appSettings End Sub Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click _appSettings.Save() End Sub End Class In my code, my custom section Inherits from ConfigurationSection (see below) Question: Is there something built into ConfigurationSection class that does the autosave? If not, what is the best way to handle this, should it be in the PropertyGrid.PropertyValueChagned? (how does the My.Settings handle this internally?) Here is the example Custom Class that I am trying to get to auto-save and how I load into property grid. Dim config As System.Configuration.Configuration = _ ConfigurationManager.OpenExeConfiguration( _ ConfigurationUserLevel.None) PropertyGrid2.SelectedObject = config.GetSection("CustomSection") Public NotInheritable Class CustomSection Inherits ConfigurationSection ' The collection (property bag) that contains ' the section properties. Private Shared _Properties As ConfigurationPropertyCollection ' The FileName property. Private Shared _FileName As New ConfigurationProperty("fileName", GetType(String), "def.txt", ConfigurationPropertyOptions.IsRequired) ' The MasUsers property. Private Shared _MaxUsers _ As New ConfigurationProperty("maxUsers", _ GetType(Int32), 1000, _ ConfigurationPropertyOptions.None) ' The MaxIdleTime property. Private Shared _MaxIdleTime _ As New ConfigurationProperty("maxIdleTime", _ GetType(TimeSpan), TimeSpan.FromMinutes(5), _ ConfigurationPropertyOptions.IsRequired) ' CustomSection constructor. Public Sub New() _Properties = New ConfigurationPropertyCollection() _Properties.Add(_FileName) _Properties.Add(_MaxUsers) _Properties.Add(_MaxIdleTime) End Sub 'New ' This is a key customization. ' It returns the initialized property bag. Protected Overrides ReadOnly Property Properties() _ As ConfigurationPropertyCollection Get Return _Properties End Get End Property <StringValidator( _ InvalidCharacters:=" ~!@#$%^&*()[]{}/;'""|\", _ MinLength:=1, MaxLength:=60)> _ <EditorAttribute(GetType(System.Windows.Forms.Design.FileNameEditor), GetType(System.Drawing.Design.UITypeEditor))> _ Public Property FileName() As String Get Return CStr(Me("fileName")) End Get Set(ByVal value As String) Me("fileName") = value End Set End Property <LongValidator(MinValue:=1, _ MaxValue:=1000000, ExcludeRange:=False)> _ Public Property MaxUsers() As Int32 Get Return Fix(Me("maxUsers")) End Get Set(ByVal value As Int32) Me("maxUsers") = value End Set End Property <TimeSpanValidator(MinValueString:="0:0:30", _ MaxValueString:="5:00:0", ExcludeRange:=False)> _ Public Property MaxIdleTime() As TimeSpan Get Return CType(Me("maxIdleTime"), TimeSpan) End Get Set(ByVal value As TimeSpan) Me("maxIdleTime") = value End Set End Property End Class 'CustomSection

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• Is gchart safe to use?

  - by Paul Tomblin

  The home page for gchart, a client side charting add-in for Google Web Toolkit (GWT), has a long screed about how the project's only maintainer thinks his Google account has been hacked and because of that he will be "disavowing/abandoning my own project and Google account". Does that mean the project is an orphan? Is somebody taking it over? There is always a risk on basing your project on somebody else's code because they may stop supporting it or abandon it during your project's life time, but it seems to me that with the fast evolution of Java and GWT, using gchart in a new project may be a big mistake. Am I right?

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• Hibernate: OutOfMemoryError persisting Blob when printing log message

  - by paul

  I have a Hibernate Entity: @Entity class Foo { //... @Lob public byte[] getBytes() { return bytes; } //.... } My VM is configured with a maximum heap size of 512 MB. When I try to persist an object which has a 75 MB large object, I get an OutOfMemoryError. The names of the methods in the stack trace (StringBuilder, ByteArrayBlobType.toLoggableString, pretty.Printer.toString) suggest that hibernate is trying to write a very large log message that contains my object. Am I correct about why hibernate is using so much memory? What is the simplest way to work around this problem? java.lang.OutOfMemoryError: Java heap space at java.lang.AbstractStringBuilder.<init>(AbstractStringBuilder.java:44) at java.lang.StringBuilder.<init>(StringBuilder.java:81) at org.hibernate.type.ByteArrayBlobType.toString(ByteArrayBlobType.java:117) at org.hibernate.type.ByteArrayBlobType.toLoggableString(ByteArrayBlobType.java:127) at org.hibernate.pretty.Printer.toString(Printer.java:53) at org.hibernate.pretty.Printer.toString(Printer.java:90) at org.hibernate.event.def.AbstractFlushingEventListener.flushEverythingToExecutions(AbstractFlushingEventListener.java:97) at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:26) at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1000) at org.jboss.seam.persistence.HibernateSessionProxy.flush(HibernateSessionProxy.java:181)

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• Implementing a 2 Legged OAuth Provider

  - by Rob Wilkerson

  I'm trying to find my way around the OAuth spec, its requirements and any implementations I can find and, so far, it really seems like more trouble than its worth because I'm having trouble finding a single resource that pulls it all together. Or maybe it's just that I'm looking for something more specialized than most tutorials. I have a set of existing APIs--some in Java, some in PHP--that I now need to secure and, for a number of reasons, OAuth seems like the right way to go. Unfortunately, my inability to track down the right resources to help me get a provider up and running is challenging that theory. Since most of this will be system-to-system API usage, I'll need to implement a 2-legged provider. With that in mind... Does anyone know of any good tutorials for implementing a 2-legged OAuth provider with PHP? Given that I have securable APIs in 2 languages, do I need to implement a provider in both or is there a way to create the provider as a "front controller" that I can funnel all requests through? When securing PHP services, for example, do I have to secure each API individually by including the requisite provider resources on each? Thanks for your help.

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• How to use the buffer on SocketAsyncEventArgs object

  - by Rob

  We're stuck with using buffers on the SocketAsyncEventArgs object. With the old socket method we'd cast our state object, like this: clientState cs = (clientState)asyncResult.AsyncState; However, the 3.5 framework is different. With have strings arriving from the client in chunks and we can't seem to work out how the buffers work so we can process an entire string when we find a char3. Code at the moment: private void ProcessReceive(SocketAsyncEventArgs e) { string content = string.Empty; // Check if the remote host closed the connection. if (e.BytesTransferred > 0) { if (e.SocketError == SocketError.Success) { Socket s = e.UserToken as Socket; //asyncResult.AsyncState; Int32 bytesTransferred = e.BytesTransferred; // Get the message received from the listener. content += Encoding.ASCII.GetString(e.Buffer, e.Offset, bytesTransferred); if (content.IndexOf(Convert.ToString((char)3)) > -1) { e.BufferList = null; // Increment the count of the total bytes receive by the server. Interlocked.Add(ref this.totalBytesRead, bytesTransferred); } else { content += Encoding.ASCII.GetString(e.Buffer, e.Offset, bytesTransferred); ProcessReceive(e); } } else { this.CloseClientSocket(e); } } }

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• DDD with Grails

  - by Paul

  I cannot find any info about doing Domain Driven Design (DDD) with Grails. I'm looking for any best practices, experience notes or even open source projects that are good examples of DDD with Grails.

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• iphone UITextField remembering user's previous input???

  - by Rob

  Is there a way to remember what the user put into a UITextField and have it displayed the next time they come to that UITextField? i.e. - have them input their name the first time they come to the "Name" UITextField but have that name already displayed in that field the next time they come across that UITextField? I want the name to still be editable if they come back to the UITextField, but inputted nonetheless in case they don't need to change it the second time around.

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• Text to MP3 using System.Speech.Synthesis.SpeechSynthesizer

  - by Rob

  I am trying to get a text-to-speech to save to an MP3. Currently I have the System.Speech.Synthesis speaking to a WAV file nicely. With New System.Speech.Synthesis.SpeechSynthesizer '.SetOutputToWaveFile(pOutputPath) This works fine .SetOutputToWaveStream(<<Problem bit>>) .Speak(pTextToSpeak) .SetOutputToNull() .Dispose() End With Now the first line commented out produces a WAV file which is nice. Currently I am trying to replace that with an MP3 output stream and not having much success. I have tried the Yeti.MMedia converter but either it isn't going to work or I haven't got it to work successfully. I have to admit here I don't know much about encodings, speeds etc. So the question I have is, does anyone know of a nice way I can say something like the following: .SetOutputToWaveStream(New MP3WriteStream(pOutputPath)) and have the SpeechSynthesizer write to the WAV which then gets converted to the MP3 and ends up on the HDD.

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• How can I get controller type and action info from a url or from route data?

  - by Rob Levine

  How can I get the controller action (method) and controller type that will be called, given the System.Web.Routing.RouteData? My scenario is this - I want to be able to do perform certain actions (or not) in the OnActionExecuting method for an action. However, I will often want to know not the current action, but the "root" action being called; by this I mean I may have a view called "Login", which is my login page. This view may include another partial view "LeftNav". When OnActionExecuting is called for LeftNav, I want to be able to determine that it is really being called for the "root" aciton of Login. I realise that by calling RouteTable.Routes.GetRouteData(actionExecutingContext.HttpContext), I can get the route for the "root" request, but how to turn this into method and type info? The only solution I have so far, is something like: var routeData = RouteTable.Routes.GetRouteData(actionExecutingContext.HttpContext) var routeController = (string)routeData.Values["controller"]; var routeAction = (string)routeData.Values["action"]; The problem with this is that "routeController" is the controller name with the "Controller" suffix removed, and is not fully qualified; ie it is "Login", rather than "MyCode.Website.LoginController". I would far rather get an actual Type and MethodInfo if possible, or at least a fully qualified type name. Any thoughts, or alternative approaches? [EDIT - this is ASP.Net MVC 1.0]

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• How do you use any2mobi command line tool (part of Calibre) to make mobi files from HTML?

  - by Paul Chernoch

  I am on MAC OS X 10.5.5. I installed Calibre, a tool for converting e-book files from one format to another. It has a GUI as well as command line tools. I am trying to run the command line tool "any2mobi" to convert HTML files to MOBI pocket format or Kindle AZW format, with a TOC. I get the error "-bash: any2mobi: command not found". Clearly, any2mobi is not in my path. Where is it? I tried searching but came up empty. I installed version 0.6.0b6 of Calibre.

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• C# mvc2 client side form validation with xval, prevent post

  - by Rob

  I'm using xval to use client side validation in my asp.net mvc2 webapplication. Despite the errors it's giving when i enter text in a nummeric field it still tries to post the form to the database. The incorrect values are being replaced by 0 and saved to the database. But instead it shouldn't even be possible to try and submit the form. Can anyone help me out here? I've set the attributes as below; [Property] [ShowColumnInCrud(true, label = "FromPriceInCents")] [Required] //[Range(1, Int32.MaxValue)] public virtual Int32 FromPriceInCents{ get; set; } The controller catching the request looks as below; I'm getting no errors in this part. [AcceptVerbs(HttpVerbs.Post)] [Transaction] [ValidateInput(false)] public override ActionResult Create() { //some foo happens } My view looks like below; <div class="label"><label for="Price">FromPrice</label></div> <div class="field"> <%= Html.TextBox("FromPriceInCents")%> <%= Html.ValidationMessage("product.FromPriceInCents")%></div> And at the end of the view i have the following rule which in html code generates the correct validation rules <%= Html.ClientSideValidation<Product>("Product") %> I hope someone can helps me out with this issue, thanks in advance!

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• How to debug a native Java crash on Linux?

  - by Paul J. Lucas

  I've seen this question and this article on how to debug a native Java crash. The article is with respect to Windows. What are the equivalent debugging aids on Linux? Note: All I have is this crash log from a user in the field. I do not have access to the machine on which the crash occurred. Update: I am pretty sure the crash is due to JNI code we have. I never meant to imply that it was the JVM itself that was faulty. Per request, here is the crash dump (or as much of it as will fit in the 30K stackoverflow limit): # # An unexpected error has been detected by Java Runtime Environment: # # SIGSEGV (0xb) at pc=0x06300e76, pid=9983, tid=4106996592 # # Java VM: Java HotSpot(TM) Client VM (1.6.0_03-b05 mixed mode, sharing) # Problematic frame: # V [libjvm.so+0x300e76] # # If you would like to submit a bug report, please visit: # http://java.sun.com/webapps/bugreport/crash.jsp # --------------- T H R E A D --------------- Current thread (0x0922e000): VMThread [id=9985] siginfo:si_signo=11, si_errno=0, si_code=1, si_addr=0x00000008 Registers: EAX=0x00000008, EBX=0x88a829b3, ECX=0x88a829b0, EDX=0xa7d6c1dc ESP=0xf4cbba5c, EBP=0xf4cbba68, ESI=0xa7d6d1d8, EDI=0x00000404 EIP=0x06300e76, CR2=0x00000008, EFLAGS=0x00010202 Top of Stack: (sp=0xf4cbba5c) 0xf4cbba5c: a7d6c1c8 0920cc30 aa0de5c0 f4cbba98 0xf4cbba6c: 063517d7 cf8f2a20 a7d6c1c8 0920cc30 0xf4cbba7c: 0920cc30 00000000 00000000 6d224c40 0xf4cbba8c: 00000001 f4cbbbb0 0920b440 f4cbbab8 0xf4cbba9c: 061dd4df 0920cc30 f4cbbb10 f4cbbac8 0xf4cbbaac: 0633cb7e 0643b5b8 f4492968 f4cbbad8 0xf4cbbabc: 061dcd68 f4cbbaf0 0920cc30 f4cbbaf8 0xf4cbbacc: 061df31e f4cbbb10 d4cbcc2c f4cbbb08 Instructions: (pc=0x06300e76) 0x06300e66: 82 39 f2 73 34 90 8d 74 26 00 8b 02 85 c0 74 22 0x06300e76: 8b 18 80 3d 45 10 42 06 00 74 0c 89 d8 31 c9 83 Stack: [0xf4c3c000,0xf4cbd000), sp=0xf4cbba5c, free space=510k Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code) V [libjvm.so+0x300e76] V [libjvm.so+0x3517d7] V [libjvm.so+0x1dd4df] V [libjvm.so+0x1dcd68] V [libjvm.so+0x1dc3cc] V [libjvm.so+0x1d4c52] V [libjvm.so+0x1d32cc] V [libjvm.so+0x1d4229] V [libjvm.so+0x1dc82a] V [libjvm.so+0x1d1d34] V [libjvm.so+0x186125] V [libjvm.so+0x1d20bc] V [libjvm.so+0x3b2cbe] V [libjvm.so+0x3c5037] V [libjvm.so+0x3c46bc] V [libjvm.so+0x3c488a] V [libjvm.so+0x3c446f] V [libjvm.so+0x30b719] C [libpthread.so.0+0x5cb2] VM_Operation (0xf2b60728): generation collection for allocation, mode: safepoint, requested by thread 0x09449c00 --------------- P R O C E S S --------------- Java Threads: ( = current thread ) 0x092afc00 JavaThread "RawImageCache" daemon [_thread_blocked, id=10026] 0xf37d1000 JavaThread "TimerQueue" daemon [_thread_blocked, id=10022] 0x09410000 JavaThread "SunTileScheduler0Standard7" daemon [_thread_blocked, id=10021] 0x0940f000 JavaThread "SunTileScheduler0Standard6" daemon [_thread_blocked, id=10020] 0x0946fc00 JavaThread "SunTileScheduler0Standard5" daemon [_thread_blocked, id=10019] 0x0946e800 JavaThread "SunTileScheduler0Standard4" daemon [_thread_blocked, id=10018] 0x0946d400 JavaThread "SunTileScheduler0Standard3" daemon [_thread_blocked, id=10017] 0x0946c000 JavaThread "SunTileScheduler0Standard2" daemon [_thread_blocked, id=10016] 0x0946ac00 JavaThread "SunTileScheduler0Standard1" daemon [_thread_blocked, id=10015] 0x0946a000 JavaThread "SunTileScheduler0Standard0" daemon [_thread_blocked, id=10014] 0x0944a800 JavaThread "Image List Poller" [_thread_blocked, id=10012] 0x09449c00 JavaThread "Image Task Queue" [_thread_blocked, id=10011] 0xf37e3c00 JavaThread "Laf-Widget fade tracker" [_thread_blocked, id=10010] 0x094abc00 JavaThread "FileCacheMonitor" daemon [_thread_blocked, id=10009] 0xf37e3800 JavaThread "DestroyJavaVM" [_thread_blocked, id=9984] 0xf37ee400 JavaThread "Thread-6" daemon [_thread_blocked, id=10006] 0xf3a7c800 JavaThread "DirectoryMonitor.MonitorThread" daemon [_thread_blocked, id=10005] 0xf3a73800 JavaThread "AWT Watchdog" daemon [_thread_blocked, id=10004] 0xf3adb800 JavaThread "TileReaper" daemon [_thread_blocked, id=10003] 0x093c3c00 JavaThread "process reaper" daemon [_thread_in_native, id=10001] 0x093ac800 JavaThread "Timer-0" daemon [_thread_blocked, id=9999] 0x093a8c00 JavaThread "AWT-EventQueue-0" [_thread_blocked, id=9997] 0x093a8000 JavaThread "AWT-Shutdown" [_thread_blocked, id=9996] 0x09378c00 JavaThread "AWT-XAWT" daemon [_thread_blocked, id=9994] 0x09368400 JavaThread "Java2D Disposer" daemon [_thread_blocked, id=9993] 0x09350000 JavaThread "Thread-1" daemon [_thread_blocked, id=9992] 0x0923b400 JavaThread "Low Memory Detector" daemon [_thread_blocked, id=9990] 0x09239c00 JavaThread "CompilerThread0" daemon [_thread_blocked, id=9989] 0x09238800 JavaThread "Signal Dispatcher" daemon [_thread_blocked, id=9988] 0x09230800 JavaThread "Finalizer" daemon [_thread_blocked, id=9987] 0x0922f400 JavaThread "Reference Handler" daemon [_thread_blocked, id=9986] Other Threads: =0x0922e000 VMThread [id=9985] 0x09245000 WatcherThread [id=9991] VM state:at safepoint (normal execution) VM Mutex/Monitor currently owned by a thread: ([mutex/lock_event]) [0x09205178/0x092051a0] Threads_lock - owner thread: 0x0922e000 [0x09205638/0x09205650] Heap_lock - owner thread: 0x09449c00 Heap def new generation total 83968K, used 9280K [0x55600000, 0x5b110000, 0x5ec40000) eden space 74688K, 0% used [0x55600000, 0x55600000, 0x59ef0000) from space 9280K, 100% used [0x5a800000, 0x5b110000, 0x5b110000) to space 9280K, 0% used [0x59ef0000, 0x59ef0000, 0x5a800000) tenured generation total 1233640K, used 1233529K [0x5ec40000, 0xaa0fa000, 0xcf800000) the space 1233640K, 99% used [0x5ec40000, 0xaa0de5c0, 0x8b4af400, 0xaa0fa000) compacting perm gen total 13312K, used 13175K [0xcf800000, 0xd0500000, 0xd3800000) the space 13312K, 98% used [0xcf800000, 0xd04ddd70, 0xd04dde00, 0xd0500000) ro space 8192K, 69% used [0xd3800000, 0xd3d8f608, 0xd3d8f800, 0xd4000000) rw space 12288K, 57% used [0xd4000000, 0xd46eee98, 0xd46ef000, 0xd4c00000) Dynamic libraries: [ snip ] VM Arguments: jvm_args: -Dinstall4j.jvmDir=/home/berbmit/bin/LightZone/jre -Dinstall4j.appDir=/home/berbmit/bin/LightZone -Dexe4j.moduleName=/home/berbmit/bin/LightZone/LightZone -Dcom.lightcrafts.licensetype=ESD -Xmx2000000k java_command: com.install4j.runtime.Launcher launch com.lightcrafts.platform.linux.LinuxLauncher true false /home/berbmit/bin/LightZone/LightZone.log /home/berbmit/bin/LightZone/LightZone.log false true false true true -1 -1 20 20 Arial 0,0,0 8 500 20 40 Arial 0,0,0 8 500 -1 Launcher Type: SUN_STANDARD Environment Variables: PATH=/home/berbmit/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games USERNAME=berbmit LD_LIBRARY_PATH=/home/berbmit/bin/LightZone/jre/lib/i386/client:/home/berbmit/bin/LightZone/jre/lib/i386:/home/berbmit/bin/LightZone/jre/../lib/i386:/home/berbmit/bin/LightZone/.: SHELL=/bin/bash DISPLAY=:0.0 Signal Handlers: SIGSEGV: [libjvm.so+0x3b29c0], sa_mask[0]=0x7ffbfeff, sa_flags=0x10000004 SIGBUS: [libjvm.so+0x3b29c0], sa_mask[0]=0x7ffbfeff, sa_flags=0x10000004 SIGFPE: [libjvm.so+0x309ec0], sa_mask[0]=0x7ffbfeff, sa_flags=0x10000004 SIGPIPE: SIG_IGN, sa_mask[0]=0x00000000, sa_flags=0x00000000 SIGILL: [libjvm.so+0x309ec0], sa_mask[0]=0x7ffbfeff, sa_flags=0x10000004 SIGUSR1: SIG_DFL, sa_mask[0]=0x00000000, sa_flags=0x00000000 SIGUSR2: [libjvm.so+0x30bef0], sa_mask[0]=0x00000000, sa_flags=0x10000004 SIGHUP: [libjvm.so+0x30b910], sa_mask[0]=0x7ffbfeff, sa_flags=0x10000004 SIGINT: [libjvm.so+0x30b910], sa_mask[0]=0x7ffbfeff, sa_flags=0x10000004 SIGQUIT: [libjvm.so+0x30b910], sa_mask[0]=0x7ffbfeff, sa_flags=0x10000004 SIGTERM: [libjvm.so+0x30b910], sa_mask[0]=0x7ffbfeff, sa_flags=0x10000004 SIGUSR2: [libjvm.so+0x30bef0], sa_mask[0]=0x00000000, sa_flags=0x10000004 --------------- S Y S T E M --------------- OS:squeeze/sid uname:Linux 2.6.35-23-generic #41-Ubuntu SMP Wed Nov 24 11:55:36 UTC 2010 x86_64 libc:glibc 2.12.1 NPTL 2.12.1 rlimit: STACK 8192k, CORE 0k, NPROC infinity, NOFILE 1024, AS infinity load average:0.67 0.54 0.36 CPU:total 8 (8 cores per cpu, 2 threads per core) family 6 model 10 stepping 5, cmov, cx8, fxsr, mmx, sse, sse2, sse3, ssse3, ht Memory: 4k page, physical 8191552k(3359308k free), swap 1016828k(1016828k free) vm_info: Java HotSpot(TM) Client VM (1.6.0_03-b05) for linux-x86, built on Sep 24 2007 22:45:46 by "java_re" with gcc 3.2.1-7a (J2SE release)

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