Home > How To > Asp.net Dynamic Controls Postback

Asp.net Dynamic Controls Postback


in that case dynamically creating content is the only suitable option no? –Sander May 31 '11 at 9:14 Yes, dynamically creating the content is in order, but it does The ScrollBars property is set to both the scrollbars, hence both the scrollbars are rendered. In this situation you could load a "home" user control to display the initial content. You want to do this on every page request, even on postbacks.

protected void DropDownList1_SelectedIndexChanged(object sender, EventArgs e) { for (int i = 1; i <= Convert.ToInt32(DropDownList1.SelectedItem.Text); i++) { TextBox Answer = new TextBox(); Answer.ID = "txt" + (i).ToString(); Answer.TextMode = TextBoxMode.MultiLine; this.FindControl("panel1").Controls.Add(Answer); Or new ones? Apr 08, 2008 06:49 PM|mbanavige|LINK Whether the Page.IsPostBack property returns true or false is usually not the issue. Even experienced developers may not have found the need to add a control at runtime.So, why add controls at runtime? http://stackoverflow.com/questions/18914357/how-to-add-controls-dynamically-when-click-button-in-asp-net

Asp.net Dynamic Controls Postback

amplt ... ViewState values are available in Page_Load - but they are notavailable during the Page_Init event. Litera Sign In·ViewThread·Permalink Re: HELP with dynamic controls TomDickAndHarry28-Jun-05 12:40 TomDickAndHarry28-Jun-05 12:40 First, you're right.

Mar 20, 2009 09:15 AM|mbanavige|LINK You would need to use FindControl to get a reference to the dynamic control. Dynamic Controls need to be created each time the page is sent to the server, so that they reappear on the page after postback. The intent is to continuously add on as many controls as times the LinkButton was clicked (i.e. How To Add Controls Dynamically In C# I replaced that with link button, but FindContorl would't find the link button id, because I was using master page..

In the Page_Init event of our page we can call a separate class to create a dynamic button. How To Create Controls Dynamically In Asp.net Using C# How does sender and receiver clock time periods synchronize in data communication? You could add your counter to viewstate and simply keep track of the number of controls you need to dynamically create. Mar 20, 2009 07:41 AM|naseem124|LINK Hi, but in onClick() method if i want to assign value say integer value=90 or a string "xyz" to the textbox it not works .value

Direction Text direction in the panel. Event Used To Dynamically Add The Controls To A Content Page. I'll leave that as an exercise for you.Figure 11: The FormTemplate page that displays when a Body query string variable is not passed in.So, how does the Body query string variable This in turn causes a "3" to be passed into the BodySetup method causing the Body3.ascx user control to be loaded into the plhBody placeholder. Nov 26, 2007 08:24 AM|mbanavige|LINK While you can create dynamic controls in either Page_Init or Page_Load, I chose Page_Load as I was using ViewState to store a value that indicated which

How To Create Controls Dynamically In Asp.net Using C#

In the code below I am adding the dynamic button to the form. http://www.aspsnippets.com/Articles/Dynamic-Controls-Made-Easy-in-ASP.Net.aspx In this example, I've chosen ViewState as the place where i will store the information needed to know which dynamic controls need to be recreated on a postback. Asp.net Dynamic Controls Postback ALthough this is probably due to my ignorance. Asp:dynamiccontrol Sep 17, 2009 12:05 PM|rgenco1|LINK Hi all, i use the example to adding N number of dynamic controls to a page .

You are free to use it for commercial as well as non-commercial use at your own risk, but you cannot use it for posting on blogs or other tutorial websites similar Sign In·ViewThread·Permalink okey how about this Arash Javadi27-May-09 4:20 Arash Javadi27-May-09 4:20 how can you add a new button to your page by clicking on a add button whitch its Thanks Sign In·ViewThread·Permalink Re: HELP with dynamic controls parkly16-Aug-07 7:06 parkly16-Aug-07 7:06 It is absolutely incredible to me that after nearly 4 years of people posting their frustrations on retaining Now you can ask questions directly to me on my new site ASPForums.Net. Asp.net Dynamically Add Controls To Page

The page might be in a postback and still not need tohave any dynamic controls loaded. The important thing here is obviously to assign identical ID values to the correct type of controls to that we can access them at postback. For example, if you are creating table rows, the container is the table. The NavigationSetup accepts no arguments and adds the Navigation.ascx user control to the plhNavigation placeholder.

You could disable it altogether and this example would still work. How To Create Controls Dynamically In Asp.net And Retrieve Values From It Adding Controls ProgrammaticallyYou add controls to a page (or other container controls as you'll see shortly) by adding controls to the Controls collection. share|improve this answer edited Jun 7 at 20:57 Kevin Panko 6,01283250 answered Nov 18 '10 at 15:19 Rahul Soni 3,78111750 I wrapped everything inside Page_Init in the !IsPostBack if.

He is an energetic trainer, skilled developer, and has been published in leading developer-oriented publications.Jim is a Microsoft Regional Director, a Microsoft MVP, an ASPInsider, and is an entertaining and popular

First the markup:

Now the code-behind: 'this property will be used Nov 25, 2007 02:17 PM|Jos Branders|LINK It is important to note that it is not sufficient to re-create the dynamic controls on all subsequent page postbacks. Mike Banavige Reply blbirajdar02 Member 40 Points 75 Posts Re: FAQ: Why do dynamic controls disappear on postback and not raise events? How To Create Dynamic Textbox In Asp.net Using C# AJAX Control Toolkit Library is not integrated in Visual Studio by default and hence I will explain a permanent way to add AJAX Control Toolkit controls to ToolBox in Visual Studio

And it seems to work now. You'll need to keep track of the fact that you have created dynamic control(s) and you will need to add the necessary code to recreate those dynamic control(s) yourself on all The HeaderSetup method accepts no arguments and adds the Header.ascx user control to the plhHeader placeholder. PAUL5-Aug-08 21:10 hi, it is pointing an error "Control 'ControlID_0' of type 'TextBox' must be placed inside a form tag with runat=server. " how to solve it...help me Sign In·ViewThread·Permalink

Thanks for help. All rights reserved. Mads Nissen6-Aug-03 3:02 Mads Nissen6-Aug-03 3:02 The solution in this article is not optimal.