.NET Tutorials, Forums, Interview Questions And Answers
Welcome :Guest
Sign In
Win Surprise Gifts!!!

Top 5 Contributors of the Month
Gaurav Pal
Post New Web Links

TabContainer & UpdateProgress Controls Won't Play Together :(

Posted By:      Posted Date: October 21, 2010    Points: 0   Category :ASP.Net

  I've created my first Tab control (yay me!), and everything has gone really well up until I tried to incorporate a UpdateProgress control into it.  Basically, my container contains three tabs, each with a seperate report.  Each report takes 5-10 seconds to load, so I thought it would be nice to flash up a "Loading Please Wait" logo to let them know it's being processed.  Everything is compiling cleanly; however, when I click on a tab nothing happens.  The reports loads as they always have, but the UpdateProgress control never kicks in with it's loading message. 

I've been researching for the past day to the point that my brain now hurts.  Different things that I have/am trying:

  1. My entire tabcontainer is in an UpdatePanel.  I have previously also tried putting the individual tab panels in seperate UpdatePanels, but this did nothing.
  2. I've tried both directly referencing my UpdatePanel and using no references in the UpdateProgress control.  Neither changed anything.
  3. I've created a button to create an UpdatePanel postback.  I've moved the button all over the place, inside the panel, outside the panel but referencing it via trigger.
  4. I've tried using the asynchronous triggers in various ways.

    View Complete Post

More Related Resource Links

Having multiple UpdateProgress controls working


I have an application that is using TabContainers and TabPanels. Within each TabPanel I have a DropDownList and a GridView. The GridView is filled on "SelectedIndexChanged" event.

I have managed to get UpdatePanel and UpdateProgress working for one on the instances but I do not seem to have luck implementing additional UpdateProgress controls for the rest on the application.

I have tried to use "AssociatedUpdatePanelId" but read that external trigger will not work. I've also tried to assign each UpdateProgress value of UpdatePanel in code behind (

UpdateProgress1.AssociatedUpdatePanelID = UpdatePanel1.UniqueID)

 , not working for me either:

I have created a Java SCript that hides GridView when UpdateProgress is being shown (works fine too)

This is what I have (and working):



<script type="text/javascript">
      window.onload = function() {
          var prm = Sys.WebForms.PageRequestManager.getInstance();
          if (prm != null) {
              prm.add_beginRequest(function(sender, e) {
                  var gridView = document.getElementById("<%=GridView2.ClientID %>");
                  if (gridVi

Web Application Project and Custom Server Controls don't play together - serious bug?


I can't for the life of me work what the heck is going wrong with my project.  I've started using the web application project type instead of web site (which seemed a good idea until now!).  Because my project is rather large, and I can't fix the problem after spending days on it, I've created a simple blank web application project.

I will explain step by step what I am trying to do and see if you can work out what I'm doing wrong.

1) I created a blank web application project (root namespace is TestWebApp).

2) Create a new folder called 'Controls'.

3) Added a Controls.vb with a class called 'MenuTreeView' wrapped inside a namespace called 'CustomControls'.

4) Within default.aspx I have the following:

<%@ Register TagPrefix="myControls" Namespace="CustomControls"  %>

5) Now when I add <myControls:MenuTreeView> to the aspx page, it fails to see the control.  It also fails to create the definition in the .designer.vb file.

My question is why is this not working.  I've also tried several iterations of the Namespace definition e.g.

<%@ Register TagPrefix="myControls" Namespace="TestWebApp.CustomControls"  %>

Binding WPF Controls to an Entity Data Model

In this interview, programming writer, McLean Schofield, demonstrates how to bind WPF controls to an entity data model, using Visual Studio 2010 Beta 1. You can also learn more in the topic: Walkthrough: Binding WPF Controls to an Entity Data Model.

Custom Controls in C# .NET

Embedding user controls in a Windows form is just like adding a simple button or text box that are already provided with .NET. These basic controls were written essentially like you code your own controls. Typically the controls you design are to be used in multiple forms or to modularize your code. These reasons help reduce the amount of code you have to type as well as make it easier for you to change your implementation. There should almost never be any reason to duplicate code because it leaves a lot of room for bugs. So, implementing functionality specific to your control in the control's source code is a good idea. This reduces code duplication as well as modularize your code, which is a good programming guideline.

Accessing the different controls inside a GridView control

how we can access a particular control which resides inside a GridView control. In this article I will show you how you can access different controls inside a GridView control. We will see how we can access a TextBox control, a DropDownList control and a ListBox control. If you are working with ASP.NET 1.X then you might want to check out my article Accessing Different Controls Inside a DataGrid.

Using ASP.NET 3.5's ListView and DataPager Controls: Displaying Data with the ListView

Prior to ASP.NET 3.5, developers who needed to display a set of records could choose between the GridView, DataList, and Repeater controls. The GridView provides rich data features, but has a very boxy layout; the DataList and Repeater allow for a more flexible layout, but lack the "point and click" data features found in the GridView, DetailsView, and FormView controls. The ListView bridges the gap between layout flexibility and built-in data features.

This article, the first in a series of articles on the ListView and DataPager controls, looks at the ListView's many available templates and illustrates how to display data. Read on to learn more!

Binding WPF Controls to an Entity Data Model

In this interview, programming writer, McLean Schofield, demonstrates how to bind WPF controls to an entity data model, using Visual Studio 2010 Beta 1. You can also learn more in the topic: Walkthrough: Binding WPF Controls to an Entity Data Model.

Working with DropDownList and ListBox Controls in ASP.NET

"In my application i am using dropdownlist to display all categories from a table. When the user clicks this control I display all records in that category. Category table also contains column called color.

I wanted display some categories in dropdown list different color and others in different color using ASP.NET."-Anonymous

How to programmatically add controls to Windows forms at run time by using Visual C#

Create a Windows Forms Application
Start Visual Studio .NET or Visual Studio 2005 or a later version, and create a new Visual C# Windows Application project named WinControls. Form1 is added to the project by default.
Double-click Form1 to create and view the Form1_Load event procedure.
Add private instance variables to the Form1 class to work with common Windows controls. The Form1 class starts as follows:

Dynamically Create Controls in ASP.NET by Using Visual C# .NET

This article demonstrates how to dynamically create a control for an .aspx page. The sample project does the following:
Creates two TextBox controls.
Verifies that the contents (TextBox.text) and the attributes of the TextBox are saved across posts to the server.
Illustrates handling events that are posted by a dynamically-created control

Dynamically Create Controls in ASP.NET with Visual Basic .NET

This step-by-step article describes how to dynamically create controls for an ASPX Web page.

The sample project does the following:
It creates two TextBox controls.
It verifies that the TextBox contents (TextBox.text) and attributes are saved across posts to the server.
It describes how events that are posted by a dynamically created control are handled.

Creating Dialogs and Ribbon Controls for SharePoint 2010

SharePoint 2010 provides new user interface components, such as server ribbons, and the new dialog platform. As a developer, you can create controls for the server ribbon and dialog boxes for the dialog platform.

How to bind GridView and DropDownList controls using DataTable object

In .net framework 2.0, you can load a DataTable in memory by consuming a data source using a DataReader. In this version you will find the flexibility in accessing the DataReader means write access code once and use again and again using DataReader. To see the functionality of DataTable consider an example that is created using VS2005.

all basic windows controls,wpf controls,silverlight application

here you will find all the information from basic.

Play video


Hi to all 

 I have asp.net 2.0 & VS 2005. I want to play a video file in my web application, is there any control for this else help me how to play video in browser. Is this complex ?

ASP.net Ajax TabContainer -- Printing All tabs



Can  anyone help me with this?. I want to print all the tabs in ajax tab container. The tab container has around 10 tabs. I dont want to goto each tab and print the page. Instead is there any way by which I can tweek the print.css file to print all the tabs at a single stretch?.  So that I will get all the contents of the tab in single print.  Is there any other way in which I can print all the tabs all together?.

Thanks in Advance...


Need help regarding C# / AJAX Dynamic Controls creation


radiobuttons is assigned before page init.. 

public partial class Default : System.Web.UI.Page
//Assign values as a specific Dynamic WebControl Creation.
List<RadioButton> radioButtons = new List<RadioButton>();
List<CheckBox> checkBoxes = new List<CheckBox>();

Then I created a class that would dynamically create a table containing the available flights depending on session.. (See CallPageLoad())

The placeholder and button is inside the UpdatePanel...

on the button inside the update panel, (btnSelect)

i have this code which works... 

protected void btnSelect_Click(object sender, EventArgs e)

Label1.Text = Convert.ToString(radioButtons.Count);

It detects the number of radiobuttons that were dynamically created...

But when I use the following code inside the BtnSelectClick event...

//PLS HELP.......
foreach (RadioButton button in radioButtons)
if (button.Checked == true)
Label1.Text = "You select... " + button;



It does not work even though t
ASP.NetWindows Application  .NET Framework  C#  VB.Net  ADO.Net  
Sql Server  SharePoint  Silverlight  Others  All   

Hall of Fame    Twitter   Terms of Service    Privacy Policy    Contact Us    Archives   Tell A Friend