CreateChildControls AFTER Postback

Posted by Francois on Stack Overflow See other posts from Stack Overflow or by Francois
Published on 2010-03-12T13:49:48Z Indexed on 2010/04/03 5:23 UTC
Read the original article Hit count: 404

Filed under:

ASP.NET

|

webcontrol

|

createchildcontrols

|

postback

I'm creating my own CompositeControl: a collection of MyLineWebControl and a "add" button. When the user press the "add" button, a new MyLineWebControl is added.

In CreateChildControls(), I run through my model (some object MyGridOfLines which has a collection of MyLine) and add one MyLineWebControl for each MyLine.

In addButton.Click, I add a new MyLine to my object MyGridOfLines.

But, since the Click event method is called after CreateChildControls(), the new MyLineWebControl will be only displayed on the next postback.

What can I do to "redraw" immediately my control, without loosing values that I've entered in each input?

© Stack Overflow or respective owner

Related posts about ASP.NET

Migrating ASP.NET MVC 1.0 applications to ASP.NET MVC 2 RTM

as seen on ASP.net Weblogs - Search for 'ASP.net Weblogs'
Note: ASP.NET MVC 2 RTM isn’t yet released! But this tool will help you get your ASP.NET MVC 1.0 applications ready for when it is! I have updated the MVC App Converter to convert projects from ASP.NET MVC 1.0 to ASP.NET MVC 2 RTM. This should be last the last major change to the MVC App Converter… >>> More
April 14th Links: ASP.NET, ASP.NET MVC, ASP.NET Web API and Visual Studio

as seen on ASP.net Weblogs - Search for 'ASP.net Weblogs'
Here is the latest in my link-listing blog series: ASP.NET Easily overlooked features in VS 11 Express for Web: Good post by Scott Hanselman that highlights a bunch of easily overlooked improvements that are coming to VS 11 (and specifically the free express editions) for web development: unit… >>> More
Use ASP.NET 4 Browser Definitions with ASP.NET 3.5

as seen on ASP.net Weblogs - Search for 'ASP.net Weblogs'
We updated the browser definitions files included with ASP.NET 4 to include information on recent browsers and devices such as Google Chrome and the iPhone. You can use these browser definition files with earlier versions of ASP.NET such as ASP.NET 3 Read More......(read more) >>> More
ASP.NET webforms + ASP.NET Ajax versus ASP.NET MVC and Ajax framework freedom

as seen on Stack Overflow - Search for 'Stack Overflow'
If given the choice, which path would you take? ASP.NET Webforms + ASP.NET AJAX or ASP.NET MVC + JavaScript Framework of your Choice Are there any limitations that ASP.NET Webforms / ASP.NET AJAX has vis-a-vis MVC? >>> More
ASP.NET MVC 2 Released

as seen on ASP.net Weblogs - Search for 'ASP.net Weblogs'
I’m happy to announce that the final release of ASP.NET MVC 2 is now available for VS 2008/Visual Web Developer 2008 Express with ASP.NET 3.5. You can download and install it from the following locations: Download ASP.NET MVC 2 using the Microsoft Web Platform Installer Download… >>> More

Related posts about webcontrol

Selectively disabling WebControl elements

as seen on Stack Overflow - Search for 'Stack Overflow'
I have an ASP.Net MasterPage with a PlaceHolder element. The contents of the PlaceHolder can be viewed in two modes: read-write, and read-only. To implement read only, I wanted to disable all inputs inside the PlaceHolder. I decided to do this by recursively looping through the controls collection… >>> More
Problem with ScriptManager.RegisterStartupScript in WebControl nested in UpdatePanel

as seen on Stack Overflow - Search for 'Stack Overflow'
Hello, I am having what I believe should be a fairly simple problem, but for the life of me I cannot see my problem. The problem is related to ScriptManager.RegisterStartupScript, something I have used many times before. The scenario I have is that I have a custom web control that has been inserted… >>> More
ASP.NET WebControl ITemplate child controls are null

as seen on Stack Overflow - Search for 'Stack Overflow'
Here is what I want: I want a control to put on a page, which other developers can place form elements inside of to display the entities that my control is searching. I have the Searching logic all working. The control builds custom search fields and performs searches based on declarative C# classes… >>> More
Asp net aspx page and webcontrol issue

as seen on Stack Overflow - Search for 'Stack Overflow'
Hello, I have a class that inherits from Page, called APage. public abstract class APage: Page { protected Repeater ExampleRepeater; .... protected override void OnLoad(EventArgs e) { if (null != ExampleRepeater) { ExampleRepeater.DataSource = GetData(); … >>> More
Registering custom webcontrol inside mvc view?

as seen on Stack Overflow - Search for 'Stack Overflow'
I am in the middle of a project where I am migrating some code for a website from WebForms to MVC - unfortunatly there's not enough time to do it all at once, so I will have to do some... not so pretty solutions. I am though facing a problems with a custom control I have written that inherits from… >>> More