Dynamic loading of UserControl

Question

0.00/5 (No votes)

See more:

Hi,

I'm dynamically loading .ascx in a placeholder inside .aspx
and the placeholder was inside ajax updatepanel.

I have 2 .ascx, when I load the first .ascx then I can execute the javascript inside that ascx. But when I load the 2nd .ascx, it still reads the javascript of the first .ascx, Why is that behaving like that? Can somebody help me how to do it right.

This is how i load the .ascx

VB

Sub loadUserControl(ByVal myControl As String)
   PlaceHolder1.Controls.Clear()
   PlaceHolder1.Controls.Add(LoadControl(myControl))
End Sub

Thanks in advance.

Enan

Posted 29-Sep-12 7:09am

Hernan K. Cabrera

Updated 29-Sep-12 7:43am

Kenneth Haugland

v2

Add a Solution

Comments

Sandeep Mewara 29-Sep-12 14:15pm

Explain a little more: "it still reads the javascript of the first .ascx"

How do you know this?

Hernan K. Cabrera 29-Sep-12 14:57pm

Hi Sandeep,

I tried to execute function on onload. eq. alert('User Control 1') for the 1st ascx and alert('User Control 2') for the 2nd ascx with the same function name. Either of the two ascx giving me the same message "User Control 1".

Sandeep Mewara 29-Sep-12 15:17pm

Do a viewsource of your webpage and see what is there in HTML. Is UC1 still there?

Hernan K. Cabrera 29-Sep-12 15:23pm

Yes Sandeep, even if I click button that will load the 2nd ascx, I can still see the UC1 alert message function in the viewsource.

But when I tried to comment out the scriptmanager, updatepanel and contenttemplate, it runs correctly.

Sandeep Mewara 29-Sep-12 15:28pm

Strange. May be caching issue. You sure that alerts are different. Right?

Hernan K. Cabrera 29-Sep-12 15:36pm

Yes Sandeep, they are different. I've tried to make their function name different and the 2nd ascx give me error. Before, I don't have problem with this because I used response.redirect to refresh my usercontrol inside my main page but now I want to just refresh my usercontrol by simply loading the usercontrol in the placeholder.

Hernan K. Cabrera 30-Sep-12 16:45pm

Hi Sandeep,

I think my problem is due to partial-page rendering.

I added <postbacktrigger> after the contenttemplate then it works. So, meaning its the same now as response.redirect?

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)