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• Mixing application modules between Silverlight and ASP.NET

  - by jkohlhepp

  Background: I work in a suite of ASP.NET applications that have several different "modules". The applications all share a main menu, so they all link to one-another. The modules are the high-level areas of the application. So, for example, it might be Payments, Orders, Customers, Products, etc. And Payments and Orders are in one app and Products and Customers are in another. Some of these menu links are "deep links", for example it might be a link to a particular page within the Customers module, such as Create New Customer. The issue: We are about to start a project that will add several more modules to this suite, probably as a new .NET application. I'm thinking about doing these new modules in Silverlight (for various reasons that are not material to the question). If I were to do that, I need to make the menu look the same as the menu in ASP.NET, as the users still need to feel like they are inside one "application". My questions: How should I organize the Silverlight project(s) so that I can "deep link" from ASP.NET pages into particular modules in the Silverlight app? What is even the best idea for creating these different Silverlight "modules"? If I had something that would've been a page in ASP.NET (for example - Create Customer), should each one of those be a separate Silverlight app? Or should it be a separate User Control? Or something else? Should I reuse our shared ASP.NET menu, and deep link to different Silverlight "modules" even within the new application? Or should I reimplement the menu in Silverlight for navigation within the app? Are there menu controls for Silverlight that look similar to ASP.NET menus (with flyout submenus in this case)? Could I maybe even share a SiteMap XML file between them? Edit: After looking around a bit more, it seems like PRISM might be the answer for some of my issues. It would allow me to modularize the different chunks of Silverlight that I have. And it would allow me to define a "master page" in Silverlight where I could host the menu. Do I have this right?

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• Windows forms application blocks after station lock

  - by Silviu

  We're having a serious issue at work. We've discovered that after the station where the client was running is locked/unlocked the client is blocked. No repaint. So the UI thread is blocked with something. Looking at the callstack of the UI thread (thread 0) using windbg we see that a UserPreferenceChanged event gets raised. It is marshalled through a WindowsFormsSynchronizationContext using it's controlToSend field to the UI. It gets blocked by a call to the marshalling control. The method called is MarshaledInvoke it builds a ThreadMethodEntry entry = new ThreadMethodEntry(caller, method, args, synchronous, executionContext); This entry is supposed to do the magic. The call is a synchronous call and because of that (still in the MarshaledInvoke of the Control class) the wait call is reached: if (!entry.IsCompleted) { this.WaitForWaitHandle(entry.AsyncWaitHandle); } The last thing that i can see on the stack is the WaitOne called on the previously mentioned AsyncWaitHandle. This is very annoying because having just the callstack of the runtime and not one of our methods being invoked we cannot really point to a bug in our code. I might be wrong, but I'm guessing that the marshaling control is not "marshaling" to the ui thread. But another one...i don't really know which one because the other threads are being used by us and are blocked...maybe this is the issue. But none of the other threads are running a message loop. This is very annoying. We had some issues in the past with marshaling controls to the right ui thread. That is because the first form that is constructed is a splash form. Which is not the main form. We used to use the main form to marshal call to the ui thread. But from time to time some calls would go to a non ui thread and some grids would broke with a big red X on them. I fixed this by creating a specific class: public class WindowsFormsSynchronizer { private static readonly WindowsFormsSynchronizationContext = new WindowsFormsSynchronizationContext(); //Methods are following that would build the same interface of the synchronization context. } This class gets build as one of the first objects in the first form being constructed. We've noticed some other strange thing. Looking at the heap there are 7 WindowsFormsSynchronizationContext objects. 6 of these have the same instance of controlToSend, and the other one has some different instance of controlToSend. This last one is the one that should marshal the calls to the UI. I don't have any other idea...maybe some of you guys had this same issue?

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• How to make the selected testcript is run in selenium grid

  - by Yui

  Hi, I can launch some remote control by using: ant launch-remote-control but I dont know how my script connect to hub? I set up ant, selenium-grid on the same computer. I have an grid.dll which is written by C# and run through NUnit. The test data is read from xml file (ValidData.xml) The example code is below : using System.Collections.Generic; using System.Linq; using System.Text; using System; using System.Xml; using System.Text.RegularExpressions; using System.Threading; using NUnit.Framework; using Selenium; namespace Grid { public class Class1 { //User defined private string strURL = "http://gmail.com/"; private string[] strBrowser = new string[3] { "*iehta", "*firefox", "*safari" }; string hubAddress = "192.168.20.131"; // IP of my computer // System defined private ISelenium selenium; private StringBuilder verificationErrors; [SetUp] public void SetupTest() { selenium = new DefaultSelenium(hubAddress, 4444, this.strBrowser[1], this.strURL);// do i need to identify browser when I defined it when launching a remote control selenium.Start(); verificationErrors = new StringBuilder(); } [TearDown] public void TeardownTest() { try { selenium.Stop(); } catch (Exception) { // Ignore errors if unable to close the browser } Assert.AreEqual("", verificationErrors.ToString()); } private string[] name; [Test] public void LoginPassedTest() { try { XmlDocument doc = new XmlDocument(); XmlNode docNode; doc.Load("ValidData.xml"); docNode = doc["TestCase"]; foreach (XmlNode node in docNode) { selenium.Open("/"); selenium.WaitForPageToLoad("50000"); selenium.Type("Email", node["username"].InnerText); selenium.Type("Passwd", node["password"].InnerText); selenium.Click("signIn"); selenium.WaitForPageToLoad("100000"); name = (selenium.GetText("//div[@id='guser']/nobr/b").Split('@')); try { Assert.AreEqual(node["username"].InnerText, name[0]); Assert.AreEqual("Sign out", selenium.GetText(":r6")); } catch (AssertionException e) { verificationErrors.Append(e.Message); } selenium.Click(":r6"); } } catch (AssertionException e) { verificationErrors.Append(e.Message); } } } } Step I run this script: 1.I build that script into DLL 2.I start hub by using command "ant lauch-hub" 3.I start 2 remote controls by using command : ant -Dport=5566 -Denvironment="*chrome" launch-remote-control ant -Dport=5577 -Denvironment="*iexplore" launch-remote-control 4.Then I open Nunit and load DLL (code above) and run 5.The NUNit doesnot respond anything. I think there are some missing things but I dont know. How can the test script (DLL) know which is sequence of remote control is selected to run the test???? Please help me!! Thank you so much Yui.

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• Can a View Controller manage more than 1 nib based view?

  - by Hugo Brynjar

  I have a VC controlling a screen of content that has 2 modes; a normal mode and an edit mode. Can I create a single VC with 2 views, each from separate nibs? In many situations on the iphone, you have a VC which controls an associated view. Then on a button press or other event, a new VC is loaded and its view becomes the top level view etc. But in this situation, I have 2 modes that I want to use the same VC for, because they are closely related. So I want a VC which can swap in/out 2 views. As per here: http://stackoverflow.com/questions/863321/iphone-how-to-load-a-view-using-a-nib-file-created-with-interface-builder/2683153#2683153 I have found that I can load a VC with an associated view from a nib and then later on load a different view from another nib and make that new view the active view. NSArray *nibObjects = [[NSBundle mainBundle] loadNibNamed:@"EditMode" owner:self options:nil]; UIView *theEditView = [nibObjects objectAtIndex:0]; self.editView = theEditView; [self.view addSubview:theEditView]; The secondary nib has outlets wired up to the VC like the primary nib. When the new nib is loaded, the outlets are all connected up fine and everything works nicely. Unfortunately when this edit view is then removed, there doesn't seem to be any elegant way of getting the outlets hooked up again to the (normal mode) view from the original nib. Nib loading and outlet setting seems a once only thing. So, if you want to have a VC that swaps in/out 2 views without creating a new VC, what are the options? 1) You can do everything in code, but I want to use nibs because it makes creating the UI simpler. 2) You have 1 nib for your VC and just hide/show elements using the hidden property of UIView and its subclasses. 3) You load a new nib as described above. This is fine for the new nib, but how do you sort the outlets when you go back to the original nib. 4) Give up and accept having a 1:1 between VCs and nibs. There is a nib for normal mode, a nib for edit mode and each mode has a VC that subclasses a common superclass. In the end, I went with 4) and it works, but requires a fair amount of extra work, because I have a model class that I instantiate in normal mode and then have to pass to the edit mode VC because both modes need access to the model. I'm also using NSTimer and have to start and stop the timer in each mode. It is because of all this shared functionality that I wanted a single VC with 2 nibs in the first place.

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• Design-time failure: WPF, Usercontrols and Namespaces

  - by Simon Woods

  Hi I have a very simple WPF project comprising a Window and Usercontrol. I'm very much in a learning phase. It works fine when I run it. However, I am unable to see the form in design time. The problem, I believe is something to do with namespaces, but I don't understand where. It may well be a simple error Main Window XML <Window xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" xmlns:views="clr-namespace:UserLogin" x:Class="UserLogin.MainView" x:Name="MainViewWindow" mc:Ignorable="d" Title="Login" Height="141" Width="347" > <Grid> <views:LoginView /> </Grid> </Window> Main Window CodeBehind Imports Microsoft.VisualBasic Imports System Imports System.Windows Imports UserLogin Namespace UserLogin Partial Public Class MainView Inherits System.Windows.Window Public Sub New() InitializeComponent() End Sub End Class End Namespace Usercontrol XAML <UserControl xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" x:Class="UserLogin.LoginView" x:Name="LoginViewControl" mc:Ignorable="d" d:DesignHeight="96" d:DesignWidth="298"> <Grid Height="96" Width="298"> <Button Command="{Binding OKCommand}" Height="21" Margin="0,0,90,16" Name="btnOK" VerticalAlignment="Bottom" HorizontalAlignment="Right" Width="76">OK</Button> <Button Command="{Binding CancelCommand}" Height="21" HorizontalAlignment="Right" Margin="0,0,9,16" Name="btnCancel" VerticalAlignment="Bottom" Width="75">Cancel</Button> <Label Height="23" HorizontalAlignment="Left" Margin="10,5,0,0" Name="Label1" VerticalAlignment="Top" Width="85">Name:</Label> <Label HorizontalAlignment="Left" Margin="10,32,0,0" Name="Label2" Width="85" Height="29" VerticalAlignment="Top">Password:</Label> <TextBox Margin="0,31,6,0" Name="txtPassword" Height="22" VerticalAlignment="Top" HorizontalAlignment="Right" Width="182" /> <ComboBox Height="22" Margin="110,6,6,0" Name="cboNames" VerticalAlignment="Top" /> </Grid> </UserControl> Usercontrol CodeBehind Imports Microsoft.VisualBasic Imports System Imports UserLogin Namespace UserLogin Partial Public Class LoginView Inherits System.Windows.Controls.UserControl Public Sub New() InitializeComponent() End Sub End Class End Namespace I think I'm missing something this namespace xmlns:views="clr-namespace:UserLogin" since intellisense doesn't give me the usercontrol declared within it in the XAML designer but rather reports the error "Unable to load the metadata for the assembly ... etc etc" Thx for any suggestions Simon

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• Tree Node Checked behavior on a TreeView in Compact Framework 3.5 running on Windows Mobile 6.5

  - by Hydroslide

  I have been upgrading an existing .NET Windows Mobile application to use the 3.5 version of the compact framework and to run on Windows Mobile 6.5. I have a form with a TreeView. The TreeView.Checkboxes property is set to true so that each node has a check box. This gives no trouble in all previous versions of Windows Mobile. However, in version 6.5 when you click on a check box it appears to check and then uncheck instantaneously. But it only raises the AfterCheck event once. The only way I can get a check to stick is by double clicking it (which is the wrong behavior). Has anyone seen this behavior? Does anyone know of a workaround for it? I have included a simple test form. Dump this form into a Visual Studio 2008 Smart Device application targeted at Windows Mobile 6 to see what I mean. Public Class frmTree Inherits System.Windows.Forms.Form #Region " Windows Form Designer generated code " Public Sub New() MyBase.new() ' This call is required by the Windows Form Designer. InitializeComponent() ' Add any initialization after the InitializeComponent() call. End Sub 'Form overrides dispose to clean up the component list. <System.Diagnostics.DebuggerNonUserCode()> _ Protected Overrides Sub Dispose(ByVal disposing As Boolean) If disposing AndAlso components IsNot Nothing Then components.Dispose() End If MyBase.Dispose(disposing) End Sub 'Required by the Windows Form Designer Private components As System.ComponentModel.IContainer Friend WithEvents TreeView1 As System.Windows.Forms.TreeView Private mainMenu1 As System.Windows.Forms.MainMenu 'NOTE: The following procedure is required by the Windows Form Designer 'It can be modified using the Windows Form Designer. 'Do not modify it using the code editor. <System.Diagnostics.DebuggerStepThrough()> _ Private Sub InitializeComponent() Dim TreeNode1 As System.Windows.Forms.TreeNode = New System.Windows.Forms.TreeNode("Node0") Dim TreeNode2 As System.Windows.Forms.TreeNode = New System.Windows.Forms.TreeNode("Node2") Dim TreeNode3 As System.Windows.Forms.TreeNode = New System.Windows.Forms.TreeNode("Node3") Dim TreeNode4 As System.Windows.Forms.TreeNode = New System.Windows.Forms.TreeNode("Node4") Dim TreeNode5 As System.Windows.Forms.TreeNode = New System.Windows.Forms.TreeNode("Node1") Dim TreeNode6 As System.Windows.Forms.TreeNode = New System.Windows.Forms.TreeNode("Node5") Dim TreeNode7 As System.Windows.Forms.TreeNode = New System.Windows.Forms.TreeNode("Node6") Dim TreeNode8 As System.Windows.Forms.TreeNode = New System.Windows.Forms.TreeNode("Node7") Me.mainMenu1 = New System.Windows.Forms.MainMenu Me.TreeView1 = New System.Windows.Forms.TreeView Me.SuspendLayout() ' 'TreeView1 ' Me.TreeView1.CheckBoxes = True Me.TreeView1.Location = New System.Drawing.Point(37, 41) Me.TreeView1.Name = "TreeView1" TreeNode2.Text = "Node2" TreeNode3.Text = "Node3" TreeNode4.Text = "Node4" TreeNode1.Nodes.AddRange(New System.Windows.Forms.TreeNode() {TreeNode2, TreeNode3, TreeNode4}) TreeNode1.Text = "Node0" TreeNode6.Text = "Node5" TreeNode7.Text = "Node6" TreeNode8.Text = "Node7" TreeNode5.Nodes.AddRange(New System.Windows.Forms.TreeNode() {TreeNode6, TreeNode7, TreeNode8}) TreeNode5.Text = "Node1" Me.TreeView1.Nodes.AddRange(New System.Windows.Forms.TreeNode() {TreeNode1, TreeNode5}) Me.TreeView1.Size = New System.Drawing.Size(171, 179) Me.TreeView1.TabIndex = 0 ' 'frmTree ' Me.AutoScaleDimensions = New System.Drawing.SizeF(96.0!, 96.0!) Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Dpi Me.AutoScroll = True Me.ClientSize = New System.Drawing.Size(240, 268) Me.Controls.Add(Me.TreeView1) Me.Menu = Me.mainMenu1 Me.Name = "frmTree" Me.Text = "frmTree" Me.ResumeLayout(False) End Sub #End Region End Class

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• Cases of companies taking IP rights of your own personal projects developed outside company time

  - by GSS

  Hi, I have heard of cases where a developer working for a company is also making his own personal projects in his own time, using his own equipment yet the company he works for tries to claim ownership for the project. I really find this annoying, and bang out of order. It should also be illegal. I am in this position (work for a company and working on my own systems - from small class libraries used to practise what I learn in my exam revision to a large commercial-scale system). While I don't know if the company will try to take ownership, all I know is they say they do not want a conflict of interest. Fair enough, my system is developed in my own time using my own equipment. They also say that work time should be for work only, which it is. Funny thing that as work is so boring, easy and slow that I have plenty of free time, which I wish I could spend on something productive - said system. The problem is, my company does not take hiring technical talent seriously. This is my first job, I am a junior coder (but my status/position doesn't really reflect what I can do), but I am the only developer. Likewise with the guy who controls Windows Server. As the contract does not say anything about taking ownership, I would assume they would. They would try to milk my success (I've made a good impression so I am sure they would). How can this be allowed? Are there any examples of this happening to any fellow Stacker here? It really makes my blood boil. What I find funny is that my company hardly has the expertise and resources to even be able to successfully run a project of my size. What I do at work is an ASP.NET application consisting of five pages, and even then there are flaws in the project. If I told them that they would also have to take responsibility for flaws in the project, then they would think twice! It's exactly because of this I save the best code for myself and at work I write rubbish code full of code smells. The company don't really care about error handling, as long as the business functionality works (ie a scheduled email sends, but there is no error handling). They'd think twice when they see the embarassment and business cost of a YSOD...

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• Getting TypeError: Error #1009: Cannot access a property or method of a null object reference.

  - by nemade-vipin

  hello friends, I have created small application for login in flex desktop application. In which I am refering webservice method for login for this have created the Authentication class. Now I want to refer different Textinput value for mobile no and Textinput value for password. In my Authentication class. for this I have created the object of mxml class.And using this I am getting the mobile no value and password value in My Action script class. This my code :- SBTS.mxml file xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" public function login():void { var User:Authentication; User = new Authentication(); User.authentication(); } ]] text=" Select Child."/ Action script class :- package src { import adobe.utils.XMLUI; import generated.webservices.*; import mx.collections.ArrayCollection; import mx.controls.Alert; import mx.rpc.events.FaultEvent; public class Authentication { [ Bindable] private var childName:ArrayCollection; [ Bindable] private var childId:ArrayCollection; private var photoFeed:ArrayCollection; private var arrayOfchild:Array; private var newEntry:GetSBTSMobileAuthentication; public var user:SBTSWebService; public var mxmlobj:SBTS; public function authentication():void { user = new SBTSWebService(); if(user!=null) { user.addSBTSWebServiceFaultEventListener(handleFaults); user.addgetSBTSMobileAuthenticationEventListener(authenticationResult); newEntry = new GetSBTSMobileAuthentication(); if(newEntry!=null) { mxmlobj = new SBTS(); if(mxmlobj != null) { newEntry.mobile = mxmlobj.mobileno.text; // Getting error here error mention below newEntry.password= mxmlobj.password.text; } user.getSBTSMobileAuthentication(newEntry); } } } public function handleFaults(event:FaultEvent):void { Alert.show( "A fault occured contacting the server. Fault message is: " + event.fault.faultString); } public function authenticationResult(event:GetSBTSMobileAuthenticationResultEvent):void { if(event.result != null && event.result._return0) { if(event.result._return 0) { var UserId:int = event.result._return; if(mxmlobj != null) { mxmlobj.loginform.enabled = false; mxmlobj.viewstack2.selectedIndex=1; } } else { Alert.show( "Authentication fail"); } } } } } I am getting this error :- TypeError: Error #1009: Cannot access a property or method of a null object reference. at SBTSBusineesObject::Authentication/authentication()[E:\Users\User1\Documents\Fl ex Builder 3\SBTS\src\SBTSBusineesObject\Authentication.as:35] at SBTS/login()[E:\Users\User1\Documents\Flex Builder 3\SBTS\src\SBTS.mxml:12] at SBTS/___SBTS_Button1_click()[E:\Users\User1\Documents\Flex Builder 3\SBTS\src\SBTS.mxml:27] please help me to remove this error.

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• Flex/Flash 4 datagrid literally displays XML

  - by Setori

  Problem: Flex/Flash4 client (built with FlashBuilder4) displays the xml sent from the server exactly as is - the datagrid keeps the format of the xml. I need the datagrid to parse the input and place the data in the correct rows and columns of the datagrid. flow: click on a date in the tree and it makes a server request for batch information in xml form. Using a CallResponder I then update the datagrid's dataProvider. [code] <fx:Script> <![CDATA[ import mx.controls.Alert; [Bindable]public var selectedTreeNode:XML; public function taskTreeChanged(event:Event):void { selectedTreeNode=Tree(event.target).selectedItem as XML; var searchHubId:String = selectedTreeNode.@hub; var searchDate:String = selectedTreeNode.@lbl; if((searchHubId == "") || (searchDate == "")){ return; } findShipmentBatches(searchDate,searchHubId); } protected function findShipmentBatches(searchDate:String, searchHubId:String):void{ findShipmentBatchesResult.token = actWs.findShipmentBatches(searchDate, searchHubId); } protected function updateBatchDataGridDP():void{ task_list_dg.dataProvider = findShipmentBatchesResult.lastResult; } ]]> </fx:Script> <fx:Declarations> <actws:ActWs id="actWs" fault="Alert.show(event.fault.faultString + '\n' + event.fault.faultDetail)" showBusyCursor="true"/> <s:CallResponder id="findShipmentBatchesResult" result="updateBatchDataGridDP()"/> </fx:Declarations> <mx:AdvancedDataGrid id="task_list_dg" width="100%" height="95%" paddingLeft="0" paddingTop="0" paddingBottom="0"> <mx:columns> <mx:AdvancedDataGridColumn headerText="Receiving date" dataField="rd"/> <mx:AdvancedDataGridColumn headerText="Msg type" dataField="mt"/> <mx:AdvancedDataGridColumn headerText="SSD" dataField="ssd"/> <mx:AdvancedDataGridColumn headerText="Shipping site" dataField="sss"/> <mx:AdvancedDataGridColumn headerText="File name" dataField="fn"/> <mx:AdvancedDataGridColumn headerText="Batch number" dataField="bn"/> </mx:columns> </mx:AdvancedDataGrid> [/code] I cannot upload a pic, but this is the xml: [code] 2010-04-23 16:35:51.0 PRESHIP 2010-02-15 00:00:00.0 100000009 DF-Ocean-PRESHIPSUM-Quanta-PACT-EMEA-Scheduled Ship Date 20100215.csv 10053 [/code] and the xml is pretty much displayed exactly as is in the datagrid columns... I would appreciate your assistance.

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• Why does Font.registerFont throw an error the second time a swf is loaded?

  - by Al Brown

  I've found an issue (in flash cs5) when using TLFTextfields and fonts shared at runtime, and I wondered if anyone has a solution. Here's the scenario. Fonts.swf: library for fonts (runtime shared DF4) Popup.swf: popup with a TLFTextfield (with text in it) using a font from Fonts.swf Main.swf : the main swf with a button that loads and unloads Popup.swf (using Loader or SafeLoader give the same results) Nice and simple, Run main.swf, click button and the popup appears with the text. Click the button again to remove the popup. All well and good now click the button again and I get the following error. ArgumentError: Error #1508: The value specified for argument font is invalid. at flash.text::Font$/registerFont() at Popup_fla::MainTimeline()[Popup_fla.MainTimeline::MainTimeline:12] I'm presuming it's happening because the font is already registered (checked when clicking before the load). Does anyone know how to get past this? If you are wondering here's my Main.as package { import fl.controls.Button; import flash.display.Loader; import flash.display.Sprite; import flash.events.Event; import flash.events.IOErrorEvent; import flash.events.MouseEvent; import flash.events.UncaughtErrorEvent; import flash.net.URLRequest; import flash.text.Font; public class Main extends Sprite { public var testPopupBtn:Button; protected var loader:Loader; public function Main() { trace("Main.Main()"); testPopupBtn.label = "open"; testPopupBtn.addEventListener(MouseEvent.CLICK, testClickHandler); } protected function testClickHandler(event:MouseEvent):void { trace("Main.testClickHandler(event)"); if(loader) { testPopupBtn.label = "open"; this.removeChild(loader); //loader.unloadAndStop(); loader = null; }else{ testPopupBtn.label = "close"; trace("Registered Fonts -->"); var fonts:Array = Font.enumerateFonts(false); for each (var font:Font in fonts) { trace("\t",font.fontName, font.fontStyle, font.fontType); } trace("<--"); loader = new Loader(); loader.uncaughtErrorEvents.addEventListener(UncaughtErrorEvent.UNCAUGHT_ERROR, uncaughtErrorHandler); this.addChild(loader); try{ loader.load(new URLRequest("Popup.swf")); }catch(e:*){ trace(e); } } } private function uncaughtErrorHandler(event:UncaughtErrorEvent):void { trace("Main.uncaughtErrorHandler(event)", event); } } }

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• JQGrid and JQuery Autocomplete

  - by Neff

  When implementing JQGrid 4.3.0, Jquery 1.6.2, and JQuery UI 1.8.16 Ive come across an issue with the Inline edit. When the inline edit is activated, some of the elements get assigned an auto complete. When the inline edit is canceld or saved, the auto complete does not always go away (selecting text by double clicking it then hitting delete, then hitting escape to exit row edit). Leaving the auto complete controls in edit mode when the row is no longer considered in edit mode. Perhaps you can tell me if there is a problem with the initialization or if I you are aware of an event post-"afterrestorefunc" that the fields can be returned to their "original" state. Original state being displayed as data in the JQGrid row. I've tried removing the DOM after row close, .remove() and .empty(): ... "afterrestorefunc": function(){ $('.ui-autocomplete-input').remove(); } ... but that causes other issues, such as the jqgrid is not able to find the cell when serializing the row for data or edit, and requires a refresh of the page, not just jqgrid, to be able to once again see the data from that row. Auto complete functionality for the element is created on the double click of the row: function CreateCustomSearchElement(value, options, selectiontype) { ... var el; el = document.createElement("input"); ... $(el).autocomplete({ source: function (request, response) { $.ajax({ url: '<%=ResolveUrl("~/Services/AutoCompleteService.asmx/GetAutoCompleteResponse") %>', data: "{ 'prefixText': '" + request.term + "', 'contextKey': '" + options.name + "'}", dataType: "json", type: "POST", contentType: "application/json; charset=utf-8", success: function (data) { response($.map(data.d, function (item) { return { label: Trim(item), value: Trim(item), searchVal: Trim(item) } })) } }); }, select: function (e, item) { //Select is on the event of selection where the value and label have already been determined. }, minLength: 1, change: function (event, ui) { //if the active element was not the search button //... } }).keyup(function (e) { if (e.keyCode == 8 || e.keyCode == 46) { //If the user hits backspace or delete, check the value of the textbox before setting the searchValue //... } }).keydown(function (e) { //if keycode is enter key and there is a value, you need to validate the data through select or change(onblur) if (e.keyCode == '13' && ($(el).val())) { return false; } if (e.keyCode == '220') { return false } }); } Other Sources: http://www.trirand.com/jqgridwiki/doku.php?id=wiki:inline_editing http://api.jqueryui.com/autocomplete/ Update: I tried only creating the autocomplete when the element was focused, and removing it when onblur. That did not resolve the issue either. It seems to just need the autocomplete dropdown to be triggered.

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• .net ViewState in page lifecycle

  - by caltrop

  I have a page containing a control called PhoneInfo.ascx. PhoneInfo is dynamically created using LoadControl() and then the initControl() function is called passing in an initialization object to set some initial textbox values within PhoneInfo. The user then changes these values and hits a submit button on the page which is wired up to the "submit_click" event. This event invokes the GetPhone() function within PhoneInfo. The returned value has all of the new user entered values except that the phoneId value (stored in ViewState and NOT edited by the user) always comes back as null. I believe that the viewstate is responsible for keeping track of user entered data across a postback, so I can't understand how the user values are coming back but not the explicitly set ViewState["PhoneId"] value! If I set the ViewState["PhoneId"] value in PhoneInfo's page_load event, it retrieves it correctly after the postback, but this isn't an option because I can only initialize that value when the page is ready to provide it. I'm sure I am just messing up the page lifecycle somehow, any suggestion or questions would really help! I have included a much simplified version of the actual code below. Containing page's codebehind protected void Page_Load(object sender, EventArgs e) { Phone phone = controlToBind as Phone; PhoneInfo phoneInfo = (PhoneInfo)LoadControl("phoneInfo.ascx"); //Create phoneInfo control phoneInfo.InitControl(phone); //use controlToBind to initialize the new control Controls.Add(phoneInfo); } protected void submit_click(object sender, EventArgs e) { Phone phone = phoneInfo.GetPhone(); } PhoneInfo.ascx codebehind protected void Page_Load(object sender, EventArgs e) { } public void InitControl(Phone phone) { if (phone != null) { ViewState["PhoneId"] = phone.Id; txt_areaCode.Text = SafeConvert.ToString(phone.AreaCode); txt_number.Text = SafeConvert.ToString(phone.Number); ddl_type.SelectedValue = SafeConvert.ToString((int)phone.Type); } } public Phone GetPhone() { Phone phone = new Phone(); if ((int)ViewState["PhoneId"] >= 0) phone.Id = (int)ViewState["PhoneId"]; phone.AreaCode = SafeConvert.ToInt(txt_areaCode.Text); phone.Number = SafeConvert.ToInt(txt_number.Text); phone.Type = (PhoneType)Enum.ToObject(typeof(PhoneType), SafeConvert.ToInt(ddl_type.SelectedValue)); return phone; } }

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• validation in javascript - remove the error msg on focus

  - by fusion

  i'm not very well-versed with javascript, so please bear with me. i've a form in which i validate the controls with javascript. the error is displayed when the fields are empty via a div, but when i focus and type something in the textbox, the div should go away. but the error div doesn't and even if i type something valid, it still displays the div. i'd like to know where am i going wrong with this script: <script type="text/javascript"> var err = document.getElementById("errmsg"); function checkInput(inPut) { if (inPut.getValue() == "") { err.setStyle('display', 'block'); err.setTextValue("Field cannot be empty!"); inPut.focus(); return false; } else { return true; } } function checkTextBox(textBox) { if (textBox.getValue() == "") { err.setStyle('display', 'block'); err.setTextValue("Field cannot be empty!"); textBox.focus(); return false; } else if (!checkValidity(textBox.getValue())) { err.setStyle('display', 'block'); err.setTextValue("Please enter a valid email address!"); textBox.focus(); return false; } else { return true; } } . . . <div id="errmsg" class="invalid" style="display:none;"></div> <br /> . . . <input type="text" tabindex="1" name="name" id="name" class="input_contact" onblur="checkInput(this);"/> <br /> . . . <input type="text" tabindex="2" name="email" id="email" class="input_contact" onblur="checkTextBox(this);"/> <br /> it's a form in facebook app but while the fbjs works, i assume there's a problem with my basic javascript.

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• Right edge border unpainted & theme drawing on non client area

  - by CodeVisio

  Basically, the problem concerns border flickering during window resizing on Windows. My first goal was to repositioning controls on a dialog during resizing of it. I think I got a good dynamic repositioning without almost any flickering during this operation, but here I'm talking about main window border flickering. However, I wasn't able to eliminate it at all. To simplify the example try to create a simple win32 app with default code VS provided. I'm testing it on Window 7(64bit) with the default theme (Windows 7 basic, no transparency) and VS2008. 1) Do not add code to the app. 2) run it in debug mode. 3) Drag the left edge of the window slowly toward the left of the screen and at the same time keep an eye on the right edge border of the window. You should see a redrawing taking in action. 4) Repeat step 3 moving rapidly the mouse, you should see the flickering on the right edge more clearly. If you invert the edge, that is moving the right edge of the window, then the left edge stay firmly there without unpainted regions. The same process happens for the top edge border vs. the bottom one. Now, enable he Classic Theme (that similar to Win2000) and repeat again the steps above. The right edge is perfectly there without flickering at all! If you keep an eye in the Output Window of Visual Studio when you run in debug mode you should see a list of dll loaded together with your exe. If you run in debug mode with the default theme you will see uxtheme.dll loaded. On the contrary, with classic theme enabled the uxtheme.dll is not loaded (dwmapi.dll is always loaded). Probably uxtheme.dll is loaded at runtime, based on desktop settings and it takes in action for redrawing your windows non-client area. Another trick you could use to see the effect of this flickering is to add a case for WM_NCPAINT and return 0 instead to call the DefWindowProc(). Repeating the steps above and moving fast you should see a big part of the right edge of the window completely erased by background windows. This doesn't happen for the top and bottom ones. Any idea to resolve this flickering? Thank you!

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• Using the HTML 'label' tag with radio buttons

  - by GlenPeterson

  Does the label tag work with radio buttons? If so, how do you use it? I have a form that displays like this: First Name: (text field) Hair Color: (color drop-down) Description: (text area) Salutation: (radio buttons for Mr., Mrs., Miss) I'd like to use the label tag for each label in the left column to define its connection to the appropriate control in the right column. But If I use a radio button, the spec seems to indicate that suddenly the actual "Salutation" label for the form control no longer belongs in the label tag, but rather the options "Mr., Mrs., etc." go in the label tag. I've always been a fan of accessibility and the semantic web, but this design doesn't make sense to me. The label tag explicitly declares labels. The option tag selection options. How do you declare a label on the actual label for a set of radio buttons? UPDATE: Here is an example with code: <tr><th><label for"sc">Status:</label></th> <td>&#160;</td> <td><select name="statusCode" id="sc"> <option value="ON_TIME">On Time</option> <option value="LATE">Late</option> </select></td></tr> This works great. But unlike other form controls, radio buttons have a separate field for each value: <tr><th align="right"><label for="???">Activity:</label></th> <td>&#160;</td> <td align="left"><input type="radio" name="es" value="" id="es0" /> Active &#160; <input type="radio" name="es" value="ON_TIME" checked="checked" id="es1" /> Completed on Time &#160; <input type="radio" name="es" value="LATE" id="es2" /> Completed Late &#160; <input type="radio" name="es" value="CANCELED" id="es3" /> Canceled</td> </tr> What to do?

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• Inherited TShape.Paint does not work after overriding Shape property

  - by DarkWalker

  I'm to code a TExpandedShape class inherited from TShape. TExpandedShape must act like TShape and be able to draw extra shapes: Polygon and Star. Here is my code unit ExpandedShape; interface uses SysUtils, WinTypes, WinProcs, Messages, Classes, Graphics, Controls, Forms, Dialogs, ExtCtrls, Windows; type TExpandedShapeType = ( stRectangle, stSquare, stRoundRect, stRoundSquare, stEllipse, stCircle, stPolygon, stStar ); TExpandedShape = class(TShape) private FShape: TExpandedShapeType; FEdgeCount: integer; procedure SetShape(const Value: TExpandedShapeType); procedure SetEdgeCount(const Value: integer); public procedure Paint; override; published property Shape : TExpandedShapeType read FShape write SetShape;// default stPolygon; property EdgeCount : integer read FEdgeCount write SetEdgeCount default 5; end; procedure Register; implementation procedure Register; begin RegisterComponents('Course', [TExpandedShape]); end; // TExpandedShape procedure TExpandedShape.Paint; begin case Shape of stStar : begin {Draw Star} end; stPolygon : begin {Draw Polygon} end; else begin {It is supposed to draw Circle, Rectangle etc, but it does not} inherited; end; end; end; procedure TExpandedShape.SetEdgeCount(const Value: integer); begin FEdgeCount := Value; Repaint; end; procedure TExpandedShape.SetShape(const Value: TExpandedShapeType); begin FShape := Value; Repaint; end; end. So, what is wrong? IMO TShape.Paint checks private value like FShape in case section and then decides what to draw. When inherited Paint method is called in my code it checks FShape value sees default 0 value [stRectangle] in there and draws it. PS: I did solve it with blackmagic way using Shape1 property instead of Shape one and if Shape1 value is not stPolygon or stStar i do like this: begin Shape := TShapeType(Shape1); inherited end; But this option is not really an option. I need a good short nice-looking one.

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• Flex - Problem with auto resizing datagrid

  - by Marty Pitt

  Hi All I'm trying to create a datagrid which will resize vertically to ensure all the renderers are displayed in full. Additionally, Renderers are of variable height Renderers can resize themselves Generally speaking, the flow of events is as follows : One of the item renderers resizes itself (normally in response to a user click etc) It dispatches a bubbling event which the parent datagrid picks up The DataGrid attempts to resize to ensure that all renderers remain visible in full. I'm currently using this code within the datagrid to calculate the height: height = measureHeightOfItems(0, dataProvider.length ) + headerHeight; This appears to get an incorrect height. I've tried a number of variations including callLater ( to ensure the resize has completed so measure can work correctly), and overriding meausre() and calling invalidateSize() / validateSize(), but neither works. Below are 3 classes which will illustrate the problem. Clicking the button in the item renderers resizes the renderer. The grid should also expand so that all of the 3 renderers are shown in their entirety. Any suggestions would be greatly appreciated. Regards Marty DataGridProblem.mxml (Application file) <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="vertical" xmlns:view="view.*"> <mx:ArrayCollection id="dataProvider"> <mx:String>Item A</mx:String> <mx:String>Item B</mx:String> <mx:String>Item C</mx:String> </mx:ArrayCollection> <view:TestDataGrid id="dg" dataProvider="{ dataProvider }" width="400"> <view:columns> <mx:DataGridColumn dataField="text" /> <mx:DataGridColumn itemRenderer="view.RendererButton" /> </view:columns> </view:TestDataGrid> </mx:Application> view.TestDataGrid.as package view { import flash.events.Event; import mx.controls.DataGrid; import mx.core.ScrollPolicy; public class TestDataGrid extends DataGrid { public function TestDataGrid() { this.verticalScrollPolicy = ScrollPolicy.OFF; this.variableRowHeight = true; this.addEventListener( RendererButton.RENDERER_RESIZE , onRendererResize ); } private function onRendererResize( event : Event ) : void { resizeDatagrid(); } private function resizeDatagrid():void { height = measureHeightOfItems(0, dataProvider.length ) + headerHeight; } } } view.RendererButton.mxml <?xml version="1.0" encoding="utf-8"?> <mx:HBox xmlns:mx="http://www.adobe.com/2006/mxml"> <mx:Button width="50" height="50" click="onClick()" /> <mx:Script> <![CDATA[ public static const RENDERER_RESIZE : String = "resizeRenderer"; private function onClick() : void { this.height += 20; dispatchEvent( new Event( RENDERER_RESIZE , true ) ); } ]]> </mx:Script> </mx:HBox>

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• Enable PostBack for a ASP.NET User Control

  - by Steven

  When I click my "Query" the values for my user controls are reset. How do I enable PostBack for my user control? myDatePicker.ascx <%@ Control Language="vb" CodeBehind="myDatePicker.ascx.vb" Inherits="Website.myDate" AutoEventWireup="false" %> <%@ Register assembly="AjaxControlToolkit" namespace="AjaxControlToolkit" tagprefix="asp" %> <asp:TextBox ID="DateTxt" runat="server" ReadOnly="True" /> <asp:Image ID="DateImg" runat="server" ImageUrl="~/Calendar_scheduleHS.png" EnableViewState="True" EnableTheming="True" /> <asp:CalendarExtender ID="DateTxt_CalendarExtender" runat="server" Enabled="True" TargetControlID="DateTxt" PopupButtonID="DateImg" DefaultView="Days" Format="ddd MMM dd, yyyy" EnableViewState="True"/> myDatePicker.ascx Partial Public Class myDate Inherits System.Web.UI.UserControl Public Property SelectedDate() As Date? Get Dim o As Object = ViewState("SelectedDate") If o = Nothing Then Return Nothing End If Return Date.Parse(o) End Get Set(ByVal value As Date?) ViewState("SelectedDate") = value End Set End Property End Class Default.aspx <%@ Page Language="vb" AutoEventWireup="false" CodeBehind="Default.aspx.vb" Inherits="Website._Default" EnableEventValidation="false" EnableViewState="true" %> <%@ Register TagPrefix="my" TagName="DatePicker" Src="~/myDatePicker.ascx" %> <%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="ajax" %> <%@ Register Assembly="..." Namespace="System.Web.UI.WebControls" TagPrefix="asp" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> ... <body> <form id="form1" runat="server"> <div class="mainbox"> <div class="query"> Start Date<br /> <my:DatePicker ID="StartDate" runat="server" EnableViewState="True" /> End Date <br /> <my:DatePicker ID="EndDate" runat="server" EnableViewState="True" /> ... <div class="query_buttons"> <asp:Button ID="Button1" runat="server" Text="Query" /> </div> </div> <asp:GridView ID="GridView1" ... > </form> </body> </html> Default.aspx.vb Imports System.Web.Services Imports System.Web.Script.Services Imports AjaxControlToolkit Protected Sub Page_Load(ByVal sender As Object, _ ByVal e As EventArgs) Handles Me.Load End Sub Partial Public Class _Default Inherits System.Web.UI.Page Protected Sub Button1_Click(ByVal sender As Object, _ ByVal e As EventArgs) Handles Button1.Click GridView1.DataBind() End Sub End Class

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• May volatile be in user defined types to help writing thread-safe code

  - by David Rodríguez - dribeas

  I know, it has been made quite clear in a couple of questions/answers before, that volatile is related to the visible state of the c++ memory model and not to multithreading. On the other hand, this article by Alexandrescu uses the volatile keyword not as a runtime feature but rather as a compile time check to force the compiler into failing to accept code that could be not thread safe. In the article the keyword is used more like a required_thread_safety tag than the actual intended use of volatile. Is this (ab)use of volatile appropriate? What possible gotchas may be hidden in the approach? The first thing that comes to mind is added confusion: volatile is not related to thread safety, but by lack of a better tool I could accept it. Basic simplification of the article: If you declare a variable volatile, only volatile member methods can be called on it, so the compiler will block calling code to other methods. Declaring an std::vector instance as volatile will block all uses of the class. Adding a wrapper in the shape of a locking pointer that performs a const_cast to release the volatile requirement, any access through the locking pointer will be allowed. Stealing from the article: template <typename T> class LockingPtr { public: // Constructors/destructors LockingPtr(volatile T& obj, Mutex& mtx) : pObj_(const_cast<T*>(&obj)), pMtx_(&mtx) { mtx.Lock(); } ~LockingPtr() { pMtx_->Unlock(); } // Pointer behavior T& operator*() { return *pObj_; } T* operator->() { return pObj_; } private: T* pObj_; Mutex* pMtx_; LockingPtr(const LockingPtr&); LockingPtr& operator=(const LockingPtr&); }; class SyncBuf { public: void Thread1() { LockingPtr<BufT> lpBuf(buffer_, mtx_); BufT::iterator i = lpBuf->begin(); for (; i != lpBuf->end(); ++i) { // ... use *i ... } } void Thread2(); private: typedef vector<char> BufT; volatile BufT buffer_; Mutex mtx_; // controls access to buffer_ };

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• Form data sent to Node via Post is undefined

  - by user185812

  I know this has been asked countless times on here, however I tried all the solutions and am still having the issue. Most people say to set the content-type (which I did) and to name the inputs that I wish to Post to node. I have done both of these things, yet still get "undefined" when trying to send data from an HTML form to node. JADE Templating HTML Code (Sorry I can't seem to get the indenting to show up here, however I think I should leave the code intact when posting here instead of converting it to normal HTML so that if the error is in here, you are still able to help) Form(action="/registration", method="post", enctype="application/x-www-form-urlencoded") div(class="control-group-Username") label(class="control-group", for="username") Username: div.controls input#Username(id="Username", type="text", placeholder="Username Here", maxlength="23", name="username") //Other divs and stuff here button.btn#submit_button(type="submit") Submit app.js code /** * Module dependencies. */ express = require('express') , routes = require('./routes') , user = require('./routes/user') , http = require('http') , path = require('path'); app = express(); // all environments app.set('port', process.env.PORT || 3000); app.set('views', __dirname + '/views'); app.set('view engine','jade'); app.use(express.favicon()); app.use(express.logger('dev')); app.use(express.bodyParser()); app.use(express.methodOverride()); app.use(express.cookieParser('your secret here')); app.use(express.session()); app.use(app.router); app.use(require('less-middleware')({ src: __dirname + '/public' })); app.use(express.static(path.join(__dirname, 'public'))); // development only if ('development' == app.get('env')) { app.use(express.errorHandler()); } app.use(express.static(__dirname + '/public')); app.get('/', routes.index); app.get('/users', user.list); app.get('/register', routes.register); http.createServer(app).listen(app.get('port'), function(){ console.log('Express server listening on port ' + app.get('port')); }); require('./Register.js'); register.js code app.post('/registration', function(req, res) { var Email=req.body.username console.log(username); });

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• Issue with angular gradient algorithm

  - by user146780

  I have an angular gradient algorithm: GLuint OGLENGINEFUNCTIONS::CreateAngularGradient( std::vector<ARGBCOLORF> &input,POINTFLOAT start, POINTFLOAT end, int width, int height ) { std::vector<GLubyte> pdata(width * height * 4); float pi = 3.1415; float cx; float cy; float r1; float r2; float ang; float px; float py; float t; cx = start.x; cy = start.y; r1 = 0; r2 = 500; ang = end.x / 100; ARGBCOLORF color; for (unsigned int i = 0; i < height; i++) { for (unsigned int j = 0; j < width; j++) { px = j; py = i; if( px * px + py * py <= r2 * r2 && px * px + py * py >= r1 * r1 ) { t= atan2(py-cy,px-cx) + ang; t= t+ pi; if (t > 2* pi) { t=t-2*pi; t=t/(2*pi); } } //end + start color.r = (0 * t) + (120 * (1 - t)); color.g = (50 * t) + (255 * (1 - t)); color.b = (0 * t) + (50 * (1 - t)); color.a = (255 * t) + (200 * (1 - t)); pdata[i * 4 * width + j * 4 + 0] = (GLubyte) color.r; pdata[i * 4 * width + j * 4 + 1] = (GLubyte) color.g; pdata[i * 4 * width + j * 4 + 2] = (GLubyte) 12; pdata[i * 4 * width + j * 4 + 3] = (GLubyte) 255; } } It works fine except the ang variable only controls the end sweep, not the start sweep. The start sweep is always facing the middle left as seen here: http://img810.imageshack.us/img810/9623/uhoh.png Basically I have no control over the end one going this <- way. How could I control this one? Thanks

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• GridView paging inside an UpdatePanel or PlaceHolder components

  - by John

  Hello, I'm new to ASP.NET. Im developing ASP.NET C# web form which creating GridView components dynamically and filling them using the data received from my webservice. I'm creating these GridView components programmatically in server-side (cs file)- it has to be flexible - 1 GridView and sometimes 10 GridView components. The problem occurs when I'm trying to add pagination - whenever the user clicks the "next" page, the whole page is getting refreshed because of a postBack and I'm loosing all my data and the page returns Blank/Empty. I used PlaceHolder to hold the GridView components, while searching for a solution, I found UpdatePanel as a better alternative - as far as I understand the page can be partially refreshed - which means that only the UpdatePanel has to be refreshed...but it doesn't work. The following code sample is my TEST, the UpdatePanel is the only component initiated in the client side (aspx page), the rest initiated programmatically in CS. how can I solve the issue described above? Why does the whole page is getting refreshed and I'm loosing my data? can you recommend another way? can provide me with any code sample? If I'm not rebuilding the GridView, it doesn't work... Here is my Default.aspx.cs: public partial class TestAjaxForm : System.Web.UI.Page { DataTable table; protected void Page_Load(object sender, EventArgs e) { if (!IsPostBack) bindGridView(); } public void bindGridView() { GridView gridView1 = new GridView(); gridView1.AutoGenerateColumns = true; gridView1.PageSize = 2; gridView1.AllowPaging = true; gridView1.PagerSettings.Mode = PagerButtons.Numeric; gridView1.PagerSettings.Position = PagerPosition.Bottom; gridView1.PagerSettings.PageButtonCount = 10; gridView1.PageIndexChanging += new GridViewPageEventHandler(this.GridView1_PageIndexChanging); table = new DataTable(); table.Columns.Add("FirstName"); table.Columns.Add("LastName"); DataRow row = table.NewRow(); row["FirstName"] = "John"; row["LastName"] = "Johnoson"; table.Rows.Add(row); row = table.NewRow(); row["FirstName"] = "Johnny"; row["LastName"] = "Marley"; table.Rows.Add(row); row = table.NewRow(); row["FirstName"] = "Kate"; row["LastName"] = "Li"; table.Rows.Add(row); panel.ContentTemplateContainer.Controls.Add(gridView1); gridView1.DataSource = table; gridView1.DataBind(); } protected void GridView1_PageIndexChanging(object sender, GridViewPageEventArgs e) { GridView gridView1 = (GridView)sender; gridView1.PageIndex = e.NewPageIndex; gridView1.DataSource = table; gridView1.DataBind(); } } Please help me, Thank you.

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• open layers LineString not working

  - by AlexS

  Sorry to bother you guys, but I'm stuck with his problem for half a day. I want to draw poly line in OpenLayers using LineString object, so I've copied the example from documentation. It runs ok but i can't see the line on the screen Code looks like this <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> var map; var lineLayer ; var points; var style; var polygonFeature function test() { lineLayer = new OpenLayers.Layer.Vector("Line Layer"); style = { strokeColor: '#0000ff', strokeOpacity: 1, strokeWidth: 10 }; map.addLayer(lineLayer); points = new Array(); points[0] =new OpenLayers.LonLat(-2.460181,27.333984 ).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());; points[1] = new OpenLayers.LonLat(-3.864255,-22.5 ).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());; var linear_ring = new OpenLayers.Geometry.LinearRing(points); polygonFeature = new OpenLayers.Feature.Vector( new OpenLayers.Geometry.Polygon([linear_ring]), null, style); lineLayer.addFeatures([polygonFeature]); alert("1"); } function initialize() { map = new OpenLayers.Map ("map_canvas", { controls:[ new OpenLayers.Control.Navigation(), new OpenLayers.Control.PanZoomBar(), new OpenLayers.Control.LayerSwitcher(), new OpenLayers.Control.Attribution()], maxExtent: new OpenLayers.Bounds(-20037508.34,-20037508.34,20037508.34,20037508.34), maxResolution: 156543.0399, numZoomLevels: 19, units: 'm', projection: new OpenLayers.Projection("EPSG:900913"), displayProjection: new OpenLayers.Projection("EPSG:4326") }); // Define the map layer // Here we use a predefined layer that will be kept up to date with URL changes layerMapnik = new OpenLayers.Layer.OSM.Mapnik("Mapnik"); map.addLayer(layerMapnik); var lonLat = new OpenLayers.LonLat(0, 0).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject()); map.zoomTo(3); map.setCenter(lonLat, 19); test(); } </head> <body onload="initialize()" > <div id="map_canvas" style="width: 828px; height: 698px"></div> I'm sure I'm missing some parameter in creation of map or something but I really can't figure which one.

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• custom view with layout

  - by user270811

  ok, what i am trying to do is to embed a custom view in the default layout main.xml: <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent"> <com.lam.customview.CustomDisplayView android:id="@+id/custom_display_view1" android:layout_width="fill_parent" android:layout_height="fill_parent" /> <LinearLayout android:orientation="horizontal" android:layout_width="fill_parent" android:layout_height="wrap_content"> <Button android:id="@+id/prev" android:layout_width="0dip" android:layout_height="wrap_content" android:layout_weight="50" android:textAppearance="?android:attr/textAppearanceSmall" android:text="@string/prev" /> </LinearLayout> </LinearLayout> as you can see the class is called com.lam.customview.CustomDisplayView, with the id of custom_display_view1. now in the com.lam.customview.CustomDisplayView class, i want to use another layout called custom_display_view.xml because i don't want to programmatically create controls/widgets. custom_display_view.xml is just a button and an image, the content of which i want to change based on certain conditions: <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent" > <TextView android:id="@+id/display_text_view1" android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="@string/hello" /> <ImageView android:id="@+id/display_image_view1" android:layout_width="wrap_content" android:layout_height="wrap_content"> </ImageView> </LinearLayout> i tried to do: 1) public CustomDisplayView(Context context, AttributeSet attrs) { super(context, attrs); try { // register our interest in hearing about changes to our surface SurfaceHolder holder = getHolder(); holder.addCallback(this); View.inflate(context, R.layout.custom_display_view, null); ... but got this error, "03-08 20:33:15.711: ERROR/onCreate(10879): Binary XML file line #8: Error inflating class java.lang.reflect.Constructor ". 2) public CustomDisplayView(Context context, AttributeSet attrs) { super(context, attrs); try { // register our interest in hearing about changes to our surface SurfaceHolder holder = getHolder(); holder.addCallback(this); View.inflate(context, R.id.custom_display_view1, null); ... but got this error, "03-08 20:28:47.401: ERROR/CustomDisplayView(10806): Resource ID #0x7f050002 type #0x12 is not valid " also, if i do it this way, as someone has suggested, it's not clear to me how the custom_display_view.xml is associated with the custom view class. thanks.

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• Why does this C# event handler not respond to this event in this Silverlight application?

  - by Edward Tanguay

  Can anyone tell me why the following code successfully executes this event: OnLoadingComplete(this, null); but never executes this event handler? void initialDataLoader_OnLoadingComplete(object obj, DataLoaderArgs args) CODE: using System; using System.Collections.Generic; using System.Linq; using System.Windows.Controls; using System.Diagnostics; namespace TestEvent22928 { public partial class MainPage : UserControl { public MainPage() { InitializeComponent(); DataLoader initialDataLoader = new DataLoader("initial"); initialDataLoader.RegisterText("test1", "http://test:111/testdata/test1.txt"); initialDataLoader.RegisterText("test2", "http://test:111/testdata/test2.txt"); initialDataLoader.BeginLoading(); initialDataLoader.OnLoadingComplete += new DataLoader.LoadingComplete(initialDataLoader_OnLoadingComplete); } void initialDataLoader_OnLoadingComplete(object obj, DataLoaderArgs args) { Debug.WriteLine("loading complete"); //WHY DOES EXECUTION NEVER GET HERE? } } public class DataManager { public DataLoader CreateDataloader(string dataloaderIdCode) { DataLoader dataLoader = new DataLoader(dataloaderIdCode); return dataLoader; } } public class DataLoader { public string IdCode { get; set; } public List<DataItem> DataItems { get; set; } public delegate void LoadingComplete(object obj, DataLoaderArgs args); public event LoadingComplete OnLoadingComplete = delegate { }; private int dataItemCurrentlyLoadingIndex; public DataLoader(string idCode) { IdCode = idCode; DataItems = new List<DataItem>(); dataItemCurrentlyLoadingIndex = -1; } public void RegisterText(string idCode, string absoluteSourceUrl) { DataItem dataItem = new DataItem { IdCode = idCode, AbsoluteSourceUrl = absoluteSourceUrl, Kind = DataItemKind.Text }; DataItems.Add(dataItem); } public void BeginLoading() { LoadNext(); } private void LoadNext() { dataItemCurrentlyLoadingIndex++; if (dataItemCurrentlyLoadingIndex < DataItems.Count()) { DataItem dataItem = DataItems[dataItemCurrentlyLoadingIndex]; Debug.WriteLine("loading " + dataItem.IdCode + "..."); LoadNext(); } else { OnLoadingComplete(this, null); //EXECUTION GETS HERE } } } public class DataItem { public string IdCode { get; set; } public string AbsoluteSourceUrl { get; set; } public DataItemKind Kind { get; set; } public object DataObject { get; set; } } public enum DataItemKind { Text, Image } public class DataLoaderArgs : EventArgs { public string Message { get; set; } public DataItem DataItem { get; set; } public DataLoaderArgs(string message, DataItem dataItem) { Message = message; DataItem = dataItem; } } }

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