how to retain dynamic controls on postback

Question

0.00/5 (No votes)

See more:

I have a created a dynamic table with dynamic buttons as cells and save button is also dynamic,on page postback or on any button click table disapears, how to retain it?

Posted 10-Jul-10 1:13am

Mansi Arora

Add a Solution

2 solutions

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

raju melveetilpurayil · Answer 1 · 2010-07-10T02:24:00

dynamic controls will disappear after postback, to solve that issue rebind after postback.
for example

if (!IsPostBack)
        {
            Button button = new Button();
            button.ID = "Button1";
            PlaceHolder1.Controls.Add(button);
        }
        else
        {
            if (PlaceHolder1.FindControl("Button1") != null)
            {
                //bind your control
                Button button = new Button();
                button.ID = "Button1";
                PlaceHolder1.Controls.Add(button);
            }
        }

Martin Jarvis · Answer 2 · 2010-07-10T16:49:00

For a databound table (or similar) you'll need to record how many rows you've created in viewstate and recreate them in the Page Load event.

One thing to watchout for is making sure that the uniqueid for each control is the same after the postback, otherwise the viewstate wont be restored properly.

how to retain dynamic controls on postback

2 solutions

Solution 1

Solution 2

Add your solution here

Preview 0