Create Control Dynamically based on Session Assigned in Master Page

Question

4.00/5 (1 vote)

See more:

Dear All, I have a DropDownList in MasterPage which holds Years, and based on the value selected from MasterPage I am creating a session variable.
in Child Control I want to create dynamic controls based on session variables, I created all the required controls in child page but the problem persist while saving the value.

I used PreRender in Child Page which Gives the accurate Session Value from Master Page, but I dynamic control can't save its state (ViewState)
I used PageLoad in Child Page, but in PageLoad I am getting wrong Session Value from Master Page,

any Ideas please, which event should i use in Child Page to both have the accurate value of MasterPage Session and have ViewState of Dynamic Control in Child Page?

Posted 28-Jan-11 2:45am

Abdul Rahman Hamidy

Add a Solution

Comments

Sandeep Mewara 28-Jan-11 8:54am

Are you resetting your session variable in Child page or so? How/Why you get 'wrong Session Value from Master Page' at later stage?
Did you tried to look at usng VS Debugger?

Abdul Rahman Hamidy 28-Jan-11 9:18am

I just used these 2 statements, R for PreRender and L for PageLoad
Response.Write("R: " + Session["YearID"].ToString());

Response.Write("L: " + Session["YearID"].ToString());

these 2 provides different values.

1 solution

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)

Christian Graus · Answer 1 · 2011-01-28T03:52:00

You can't create controls dynamically and expect them to have state if you create them during Page Load or later. There's tons of articles on this on the web. I find the easiest thing to do, is have a hidden control, and in that use javascript to store the values of my dynamically created controls, or if my dynamic controls are limited in scope ( i.e. there's not an infinite number of textboxes possible, for example ), just create them all the time and just hide/show them as needed.