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• How to bind DataTable to Chart series?

  - by user175908

  Hello, How to do bind data from DataTable to Chart series? I get null reference exception. I tried binding with square brackets and it did not worked either. So, how to do the binding? Thanks. P.S: I included DataGrid XAML and CS which works just fine. Converting data to List<KeyValuePair<string,int>> works good but it is kinda slow and is unnessesary trash in code. I use WPFToolkit (the latest version). XAML: <Window x:Class="BindingzTest.MainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Title="MainWindow" Height="606" Width="988" xmlns:charting="clr-namespace:System.Windows.Controls.DataVisualization.Charting;assembly=System.Windows.Controls.DataVisualization.Toolkit"> <Grid Name="LayoutRoot"> <charting:Chart Title="Letters and Numbers" VerticalAlignment="Top" Height="400"> <charting:Chart.Series> <charting:ColumnSeries Name="myChartSeries" IndependentValueBinding="{Binding Letter}" DependentValueBinding="{Binding Number}" ItemsSource="{Binding}" /> </charting:Chart.Series> </charting:Chart> <DataGrid Name="myDataGrid" VerticalAlignment="Stretch" Margin="0,400,0,50" ItemsSource="{Binding}" AutoGenerateColumns="False"> <DataGrid.Columns> <DataGridTextColumn Header="Letter" Binding="{Binding Letter}"/> <DataGridTextColumn Header="Number" Binding="{Binding Number}"/> </DataGrid.Columns> </DataGrid> <Button Content="Generate" HorizontalAlignment="Left" Name="generateButton" Width="128" Click="GenerateButtonClicked" Height="52" VerticalAlignment="Bottom" /> </Grid> CS: public partial class MainWindow : Window { public MainWindow() { InitializeComponent(); } DataTable GenerateMyTable() { var myTable = new DataTable("MyTable"); myTable.Columns.Add("Letter"); myTable.Columns.Add("Number"); myTable.Rows.Add("A", 500); myTable.Rows.Add("B", 400); myTable.Rows.Add("C", 500); myTable.Rows.Add("D", 600); myTable.Rows.Add("E", 300); myTable.Rows.Add("F", 200); return myTable; } private void GenerateButtonClicked(object sender, RoutedEventArgs e) { var myGeneratedTable = GenerateMyTable(); myDataGrid.DataContext = myGeneratedTable; myChartSeries.DataContext = myGeneratedTable; // Calling this throws "Object reference not set to an instance of an object" exception } }

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• return value from ajax request to another function

  - by stormdrain

  I'm trying to return a value from (transport) to the calling function, but can't seem to get it to work: function createXMLHttpRequest( w ) { var urly = '/users/notes/' + w; var options = { method:'get' , onSuccess: function( transport ) { x = transport.responseText; return x; } , onFailure: function( transport ) { var response = transport.responseText; alert( "FAILED "+ response ); } }; new Ajax.Request( urly, options ); alert( x ); } var ai = $( 'addItem' ); ai.onclick = function() { // -1 indicates new addnote( -1, null ); } x always alerts undefined. Unless I assign x to the Ajax.Request e.g. x=new Ajax.Request(urly,options). It then will alert [Object object]. How can I return the value of transport.responseText to the onclick function?

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• str is not callable error in python .

  - by mekasperasky

  import sys import md5 from TOSSIM import * from RadioCountMsg import * t = Tossim([]) #The Tossim object is defined here m = t.mac()#The mac layer is defined here , in which the communication takes place r = t.radio()#The radio communication link object is defined here , as the communication needs Rf frequency to transfer t.addChannel("RadioCountToLedsC", sys.stdout)# The various channels through which communication will take place t.addChannel("LedsC", sys.stdout) #The no of nodes that would be required in the simulation has to be entered here print("enter the no of nodes you want ") n=input() for i in range(0, n): m = t.getNode(i) m.bootAtTime((31 + t.ticksPerSecond() / 10) * i + 1) #The booting time is defined so that the time at which the node would be booted is given f = open("topo.txt", "r") #The topography is defined in topo.txt so that the RF frequencies of the transmission between nodes are are set lines = f.readlines() for line in lines: s = line.split() if (len(s) > 0): if (s[0] == "gain"): r.add(int(s[1]), int(s[2]), float(s[3])) #The topogrography is added to the radio object noise = open("meyer-heavy.txt", "r") #The noise model is defined for the nodes lines = noise.readlines() for line in lines: str = line.strip() if (str != ""): val = int(str) for i in range(0, 4): t.getNode(i).addNoiseTraceReading(val) for i in range (0, n): t.getNode(i).createNoiseModel() #The noise model is created for each node for i in range(0,n): t.runNextEvent() fk=open("key.txt","w") for i in range(0,n): if i ==0 : key=raw_input() fk.write(key) ak=key key=md5.new() key.update(str(ak)) ak=key.digest() fk.write(ak) fk.close() fk=open("key.txt","w") plaint=open("pt.txt") for i in range(0,n): msg = RadioCountMsg() msg.set_counter(7) pkt = t.newPacket()#A packet is defined according to a certain format print("enter message to be transported") ms=raw_input()#The message to be transported is taken as input #The RC5 encryption has to be done here plaint.write(ms) pkt.setData(msg.data) pkt.setType(msg.get_amType()) pkt.setDestination(i+1)#The destination to which the packet will be sent is set print "Delivering " + " to" ,i+1 pkt.deliver(i+1, t.time() + 3) fk.close() print "the key to be displayed" ki=raw_input() fk=open("key.txt") for i in range(0,n): if i==ki: ms=fk.readline() for i in range(0,n): msg=RadioCountMsg() msg.set_counter(7) pkt=t.newPacket() msg.data=ms pkt.setData(msg.data) pkt.setType(msg.get_amType()) pkt.setDestination(i+1) pkt.deliver(i+1,t.time()+3) #The key has to be broadcasted here so that the decryption can take place for i in range(0, n): t.runNextEvent(); this code gives me error here key.update(str(ak)) . when i run a similar code on the python terminal there is no such error but this code pops up an error . why so?

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• Converting Asynchronous Programming Model (Begin/End methods) into event-based asynchronous model?

  - by David

  Let's say I have code that uses the Asynchronous Programming Model, i.e. it provides the following methods as a group which can be used synchronously or asynchronously: public MethodResult Operation(<method params>); public IAsyncResult BeginOperation(<method params>, AsyncCallback callback, object state); public MethodResult EndOperation(IAsyncResult ar); What I want to do is wrap this code with an additional layer that will transform it into the event-driven asynchronous model, like so: public void OperationAsync(<method params>); public event OperationCompletedEventHandler OperationCompleted; public delegate void OperationCompletedEventHandler(object sender, OperationCompletedEventArgs e); Does anyone have any guidance (or links to such guidance) on how to accomplish this?

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• error working with wsdl files in visual studio 2008

  - by deostroll

  Hi. I got a wsdl file in email. At first I didn't know how to use it. I've simply saved the file to my disk. Opened visual studio...added a service reference...provided path to file, and service was discovered. I opened the object browser to see the types and methods that got imported. I figure anything that ends with the name 'Client' is a good place to start using the web service. I've tried using a simple method to get data but it has run into and expception. Need help in resolving it. System.InvalidOperationException was unhandled Message="The XML element 'ListsRequest' from namespace 'http://www.asd.org/MGMMIRAGE.MDM.WS/Customer' references a method and a type. Change the method's message name using WebMethodAttribute or change the type's root element using the XmlRootAttribute." Source="System.Xml" StackTrace: at System.Xml.Serialization.XmlReflectionImporter.ReconcileAccessor(Accessor accessor, NameTable accessors) at System.Xml.Serialization.XmlReflectionImporter.ImportMembersMapping(String elementName, String ns, XmlReflectionMember[] members, Boolean hasWrapperElement, Boolean rpc, Boolean openModel, XmlMappingAccess access) at System.Xml.Serialization.XmlReflectionImporter.ImportMembersMapping(String elementName, String ns, XmlReflectionMember[] members, Boolean hasWrapperElement, Boolean rpc, Boolean openModel) at System.Xml.Serialization.XmlReflectionImporter.ImportMembersMapping(String elementName, String ns, XmlReflectionMember[] members, Boolean hasWrapperElement, Boolean rpc) at System.ServiceModel.Description.XmlSerializerOperationBehavior.Reflector.XmlSerializerImporter.ImportMembersMapping(XmlName elementName, String ns, XmlReflectionMember[] members, Boolean hasWrapperElement, Boolean rpc, Boolean isEncoded, String mappingKey) at System.ServiceModel.Description.XmlSerializerOperationBehavior.Reflector.OperationReflector.ImportMembersMapping(String elementName, String ns, XmlReflectionMember[] members, Boolean hasWrapperElement, Boolean rpc, String mappingKey) at System.ServiceModel.Description.XmlSerializerOperationBehavior.Reflector.OperationReflector.LoadBodyMapping(MessageDescription message, String mappingKey, MessagePartDescriptionCollection& rpcEncodedTypedMessageBodyParts) at System.ServiceModel.Description.XmlSerializerOperationBehavior.Reflector.OperationReflector.CreateMessageInfo(MessageDescription message, String key) at System.ServiceModel.Description.XmlSerializerOperationBehavior.Reflector.OperationReflector.EnsureMessageInfos() at System.ServiceModel.Description.XmlSerializerOperationBehavior.Reflector.EnsureMessageInfos() at System.ServiceModel.Description.XmlSerializerOperationBehavior.Reflector.OperationReflector.get_Request() at System.ServiceModel.Description.XmlSerializerOperationBehavior.CreateFormatter() at System.ServiceModel.Description.XmlSerializerOperationBehavior.System.ServiceModel.Description.IOperationBehavior.ApplyClientBehavior(OperationDescription description, ClientOperation proxy) at System.ServiceModel.Description.DispatcherBuilder.BindOperations(ContractDescription contract, ClientRuntime proxy, DispatchRuntime dispatch) at System.ServiceModel.Description.DispatcherBuilder.ApplyClientBehavior(ServiceEndpoint serviceEndpoint, ClientRuntime clientRuntime) at System.ServiceModel.Description.DispatcherBuilder.BuildProxyBehavior(ServiceEndpoint serviceEndpoint, BindingParameterCollection& parameters) at System.ServiceModel.Channels.ServiceChannelFactory.BuildChannelFactory(ServiceEndpoint serviceEndpoint) at System.ServiceModel.ChannelFactory.CreateFactory() at System.ServiceModel.ChannelFactory.OnOpening() at System.ServiceModel.Channels.CommunicationObject.Open(TimeSpan timeout) at System.ServiceModel.ChannelFactory.EnsureOpened() at System.ServiceModel.ChannelFactory`1.CreateChannel(EndpointAddress address, Uri via) at System.ServiceModel.ChannelFactory`1.CreateChannel() at System.ServiceModel.ClientBase`1.CreateChannel() at System.ServiceModel.ClientBase`1.CreateChannelInternal() at System.ServiceModel.ClientBase`1.get_Channel() at MDMWSDemo.MDMWebSrvc.MGMCustomerSoapPortTypeClient.MDMWSDemo.MDMWebSrvc.MGMCustomerSoapPortType.CountryCodeGet(CountryCodeGetRequest request) in C:\Documents and Settings\tbhagava01\My Documents\Visual Studio 2008\Projects\MDMWSDemo\MDMWSDemo\Service References\MDMWebSrvc\Reference.cs:line 2983 at MDMWSDemo.MDMWebSrvc.MGMCustomerSoapPortTypeClient.CountryCodeGet(String countryCode) in C:\Documents and Settings\tbhagava01\My Documents\Visual Studio 2008\Projects\MDMWSDemo\MDMWSDemo\Service References\MDMWebSrvc\Reference.cs:line 2989 at MDMWSDemo.Program.Main(String[] args) in C:\Documents and Settings\tbhagava01\My Documents\Visual Studio 2008\Projects\MDMWSDemo\MDMWSDemo\Program.cs:line 15 at System.AppDomain._nExecuteAssembly(Assembly assembly, String[] args) at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args) at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly() at System.Threading.ThreadHelper.ThreadStart_Context(Object state) at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state) at System.Threading.ThreadHelper.ThreadStart() InnerException:

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• send option selection via. jquery

  - by william

  Hey I have some problems sending an id though jquery. I have a form select with some values, i want to "grap" the id when change option selection. Output error: [object Object] !! :/ <select name="case_name" id="case_id"> <option value="10009" >Case 1</option> <option value="10010" >Case 2</option> <option value="10011" >Case 3</option> </select> $("#case_id").change(function(){ var CASE_ID = $("#case_id").val(); }); var PARAMS = { "case_id": CASE_ID };

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• Eager loading vs. many queries with PHP, SQLite

  - by Mike

  I have an application that has an n+1 query problem, but when I implemented a way to load the data eagerly, I found absolutely no performance gain. I do use an identity map, so objects are only created once. Here's a benchmark of ~3000 objects. first query + first object creation: 0.00636100769043 sec. memory usage: 190008 bytes iterate through all objects (queries + objects creation): 1.98003697395 sec. memory usage: 7717116 bytes And here's one when I use eager loading. query: 0.0881109237671 sec. memory usage: 6948004 bytes object creation: 1.91053009033 sec. memory usage: 12650368 bytes iterate through all objects: 1.96605396271 sec. memory usage: 12686836 bytes So my questions are Is SQLite just magically lightning fast when it comes to small queries? (I'm used to working with MySQL.) Does this just seem wrong to anyone? Shouldn't eager loading have given much better performance?

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• Flash receives mouse events under an HTML element when opacity set

  - by Török Gábor

  I have an HTML document with a Flash object and an absolutely positioned HTML element above it. If I set the HTML element's opacity CSS property to any value less than 1, the Flash object (that is actually covered) receives mouse events. This problem cannot be reproduced with pure HTML elements. Furthermore, Flash only receives hover events, so I cannot click below the layer. I put a demonstration of the problem online. I get this behavior in Firefox 3.6, Safari 4.0 and Chrome 5.0 in both Mac and Windows. Flash plugin version 10 is installed. Is it a bug or the the normal and expected behavior? If the latter, then how can I prevent Flash receiving events when it is covered with a translucent layer?

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• Set Dropdownlist value in listview on itemdatabound

  - by Samir

  hello, i have dropdownlist of year which is coming dynamically.i have filled the dropdownlist using object datasource.on inserting in the listview control it is working fine. but when i click on edit button that dropdownlist value should be set which is coming from the database. e.g. if i have a row which contains Year=2006 and month="Jan" then on click on edit button these dropdown list should be fill up. i have written the code in ItemDataBound to set the value of the dropdownlilst.but when i use findcontrol its taking null so object reference error is coming. so please provide me the solution. thanks samir

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• How to implement List, Set, and Map in null free design?

  - by Pyrolistical

  Its great when you can return a null/empty object in most cases to avoid nulls, but what about Collection like objects? In Java, Map returns null if key in get(key) is not found in the map. The best way I can think of to avoid nulls in this situation is to return an Entry<T> object, which is either the EmptyEntry<T>, or contains the value T. Sure we avoid the null, but now you can have a class cast exception if you don't check if its an EmptyEntry<T>. Is there a better way to avoid nulls in Map's get(K)? And for argument sake, let's say this language don't even have null, so don't say just use nulls.

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• How to hide GetType() method from COM?

  - by ticky

  I made an automation Add-In for Excel, and I made several functions (formulas). I have a class which header looks like this (it is COM visible): [ClassInterface(ClassInterfaceType.AutoDual)] [ComVisible(true)] public class Functions {} In a list of methods, I see: ToString(), Equals(), GetHashCode() and GetType() methods. Since all methods of my class are COM visible, I should somehow hide those 4. I succeeded with 3 of them: ToString(), Equals(), GetHashCode() but GetType() cannot be overriden. Here is what I did with 3 of them: [ComVisible(false)] public override string ToString() { return base.ToString(); } [ComVisible(false)] public override bool Equals(object obj) { return base.Equals(obj); } [ComVisible(false)] public override int GetHashCode() { return base.GetHashCode(); } This doesn't work: [ComVisible(false)] public override Type GetType() { return base.GetType(); } Here is the error message in Visual Studio when compile: ..GetType()': cannot override inherited member 'object.GetType()' because it is not marked virtual, abstract, or override So, what should I do to hide the GetType() method from COM?

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• MissingMethodException in C# Program

  - by draghia-aurelian

  I wrote a Windows Form Application in C# and it works well for my computer. But on another PC, an error occurs when I try to do some stuff. MenuItem_Click Event Handler private void rUNToolStripMenuItem_Click(object sender, EventArgs e) { MessageBox.Show("I'm in rUNToolStripMenuItem_Click!"); ... } ToolStripMenuItem Event Handler private void dataPositionToolStripMenuItem_Click(object sender, EventArgs e) { MessageBox.Show("I'm in dataPositionToolStripMenuItem_Click!"); ... } Running on my computer: MenuItem_ClickEvent Handler Output (On My PC) MessageBox appears: "I'm in rUNToolStripMenuItem_Click" ToolStripMenuItem Event Handler (On My PC) MessageBox appears: "I'm in dataPositionToolStripMenuItem_Click!" MenuItem_Click Event Handler: (On another PC) Messagebox doesn't appear and an Exception is thrown Method not found: "Void Microsoft.CSharp.RuntimeBinder.CSharpGetMemberBinder.ctor( System.String.System.Type, System.Collections.Generic.IEnumerable'1<Microsoft .CSharp.RuntimeBinder.CSharpArgument Info>)'. This is the PrintScreen with error: What am I doing wrong?

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• WPF: Soft deletes and binding?

  - by aks

  I have custom objects which implement INotifyProperyChanged and now I'm wondering if it is possible to implement soft delete which would play nicely with binding? Each object would have a IsDeleted property and if this property would be set to true than it would not be displayed in GUI. I was thinking about making a custom markup extension which would decorate Binding class but it hadn't worked out as expected. Now I'm considering using MultiBinding with IsDeleted as one of bound properties so that converter would be able to figure out which object is deleted. But this solution sounds quite complicated and boring. Does anybody have an idea how to implement soft deletes for binding?

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• PHP Interview questions

  - by David

  Hi, does anyone have any thoughts on what would be considered good technicaly interviews for new php programmers. Im not meaning the little questions that are intended to know language specific intricacies but more on larger interview questions that potential employees may take an hour or 2 to solve in their own time and then come back with. Specifically im looking at PHP and object orientated but are there any ideas on suitable problems that a php programmer should be able to solve within a couple of hours? I am thinking that I want to have demonstrated object orientated techniques and also unit testing capabilities but as for that it can be anything.

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• Python: convert buffer type of SQLITE column into string

  - by Volatil3

  I am new to Python 2.6. I have been trying to fetch date datetime value which is in yyyy-mm-dd hh:m:ss format back in my Python program. On checking the column type in Python I get the error: 'buffer' object has no attribute 'decode'. I want to use the strptime() function to split the date data and use it but I can't find how to convert a buffer to string. The following is a sample of my code (also available here): conn = sqlite3.connect("mrp.db.db", detect_types=sqlite3.PARSE_DECLTYPES) cursor = conn.cursor() qryT = """ SELECT dateDefinitionTest FROM t WHERE IDproject = 4 AND IDstatus = 5 ORDER BY priority, setDate DESC """ rec = (4,4) cursor.execute(qryT,rec) resultsetTasks = cursor.fetchall() cursor.close() # closing the resultset for item in resultsetTasks: taskDetails = {} _f = item[10].decode("utf-8") The exception I get is: 'buffer' object has no attribute 'decode'

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• Trying to build HipHop PHP Compiler on Ubuntu 9.10... Why does it get stuck?

  - by Alex R

  It seems to not get past this step: [ 16%] Building CXX object src/CMakeFiles/hphp_runtime_static.dir/lib/system/gen/sys/dynamic_table_func.no.cpp.o

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• Scala 2.8 TreeMap and custom Ordering

  - by Dave

  I'm switching from scala 2.7 and ordered to scala 2.8 and using ordering. It looks quite straight forward but I was wondering could I make it a little less verbose. For example: scala> case class A(i: Int) defined class A scala> object A extends Ordering[A] { def compare(o1: A, o2: A) = o1.i - o2.i} defined module A If I then try to create a TreeMap I get an error scala> new collection.immutable.TreeMap[A, String]() <console>:10: error: could not find implicit value for parameter ordering: Ordering[A] new collection.immutable.TreeMap[A, String]() ^ However if I explicitly specify the object A as the ordering it works fine. scala> new collection.immutable.TreeMap[A, String]()(A) res34: scala.collection.immutable.TreeMap[A,String] = Map() Do I always have to explicitly specify the ordering or is there a shorter format? Thanks

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• Scala method where type of second parameter equals part of generic type from first parameter

  - by ifischer

  I want to create a specific generic method in Scala. It takes two parameters. The first is of the type of a generic Java Interface (it's from the JPA criteria query). It currently looks like this: def genericFind(attribute:SingularAttribute[Person, _], value:Object) { ... } // The Java Interface which is the type of the first parameter in my find-method: public interface SingularAttribute<X, T> extends Attribute<X, T>, Bindable<T> Now i want to achieve the following: value is currently of type java.lang.Object. But I want to make it more specific. Value has to be the of the same type as the placeholder "_" from the first parameter (and so represents the "T" in the Java interface). Is that somehow possible, and how? BTW Sorry for the stupid question title (any suggestions?)

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• close() implies flush()?

  - by Adam Matan

  Hi, In Python, and in general - does close() operation on a file object implies a flush() operation? Adam

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• Custom StyleCop rule not working as expected

  - by Jon

  I'm trying to write a StyleCop rule that disallows underscores anywhere. There is a rule to say that you cant have public string _myfield but I don't want underscores anywhere ie/method names, property names, method parameters. Below is my code but its not working properly. Can anyone suggest why? using Microsoft.StyleCop; using Microsoft.StyleCop.CSharp; namespace DotNetExtensions.StyleCop.Rules { [SourceAnalyzer(typeof(CsParser))] public class NoUnderScores : SourceAnalyzer { public override void AnalyzeDocument(CodeDocument document) { CsDocument csdocument = (CsDocument) document; if (csdocument.RootElement != null && !csdocument.RootElement.Generated) csdocument.WalkDocument(new CodeWalkerElementVisitor<object>(this.VisitElement), null, null); } private bool VisitElement(CsElement element, CsElement parentElement, object context) { if (!element.Generated) { foreach(var token in element.Tokens) { if (token.Text.Contains("_")) AddViolation(element, "NoUnderScores"); } } return true; } } }

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• MVVM User Control Issue

  - by Burt

  I have a problem with commands in an MVVM application (I am only learning MVVM so go easy). MyClassViewModel is set to the datacontext for MainForm1, MyList is bound to UserControl1 datacontext and each item in the list is represented by UserControl2. I am trying to fire MyCommand in UserControl2 using the following: <CheckBox IsChecked="{Binding MyBool}" Command="{Binding Path=MyCommand}" CommandParameter="{Binding}"> I get the following error in the output: System.Windows.Data Error: 39 : BindingExpression path error: 'MyCommand' property not found on 'object' ''MyObject'' From this error I know that WPF is looking for the command in the object bound to the UserControl2 what I really need is for it to look for the command in the MainForm1 datacontext (MyClassViewModel). Is it possible to bubble up commands like this and if so how is it done? Is bubbling up the command a good solution?

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• Is this a violation of the single responsiblity principle?

  - by L. Moser

  I have the following method and interface: public object ProcessRules(List<IRule> rules) { foreach(IRule rule in rules) { if(EvaluateExpression(rule.Exp) == true) return rule.Result; } //Some error handling here for not hitting any rules } public interface IRule { Expression Exp; Object Result; int Precedence; } Because rules have a precedence, they should actually never be processed out of order. This leads me with (I think) three solutions: Sort rules before passing them into the evaluator. Change the parameter type to something that enforces a sort order. Sort within the evaluator. I like option 3 because it always ensures that it is sorted and I like option 1 because it seems more cohesive. And option 2 seems like a good compromise. Is a scenario like this context specific/subjective, or is there really a best practice to be applied here?

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• Java servlet and JSP accessing the same session bean

  - by Mykola Golubyev

  Let's say I have simple Login servlet that checks the passed name and creates User object and stores it in a session. User user = new User(); user.setId(name); request.getSession().setAttribute("user", user); response.sendRedirect("index.jsp"); In the index.jsp page I access the user object through jsp:useBean <jsp:useBean id="user" scope="session" class="package.name.User"/> <div class="panel"> Welcome ${user.id} </div> It works so far. The question: is this a valid usage or it is just current implementation uses the same name as the jsp bean id when stores and looks for a bean in a session?

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• DataTable.WriteXml on background thread

  - by Sheraz KHan

  I am trying to serealize DataTables in a background thread and it's failing. Any idea [Test] public void Async_Writing_DataTables() { string path = @"C:\Temp\SerialzeData"; if (!Directory.Exists(path)) { Directory.CreateDirectory(path); } Assert.IsTrue(Directory.Exists(path)); Thread thread1 = new Thread(new ThreadStart(delegate { object lockObject = new object(); for (int index = 0; index < 10; index++) { lock (lockObject) { DataTable table = new DataTable("test"); table.WriteXml(Path.Combine(path, table.TableName + index + ".xml")); } } })); thread1.Start(); }

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• [three20] dynamically add Items to TTLauncher

  - by choise

  Hi guys, in my app i got a TTLauncher Object with some TTLauncherItems in it. Now i want to add some Items dynamically inside my App by pressing a button. Is there a simple way to do that or do i have to create my own methods? In the original facebook application there is already something like that implemented. (You can add your Friends to the Launcher) If not, what would be the best thing to do something like that? Store all "extra items" in a plist oder even in a database and query them, each time TTLauncher object is initialized? Thanks for help :)

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