Get ClientId. Need Help. This is driving me crazy! Thank You.

[Miguel Dias Moura]

Hello,

I have been trying, for days, to retrieve a control's ClientId in a
javascript function.
I am using a master page and this is why I need to retrieve the
Control's ClientId.
The control Id is "Panel1". I placed "<%=Panel1.ClientID %>" in my HTML
code and I got "ctl00_pPanel1".

In my Javascript function I am using:

document.getElementById("<%=Panel1.ClientID %>").style.display =
"block";

This is not working. I also tried a hidden field but I wasn't able to
make this work.

I am including my Javascript code on Page_Init as follows:

' Include page's javascript file
If Not Page.ClientScript.IsClientScriptIncludeRegistered("MyCode")
Then
Page.ClientScript.RegisterClientScriptInclude("MyCode",
"/Scripts/MyCode.js")
End If

This is driving me crazy. I read some information on MSDN library but I
can't figure out what I am doing wrong.

Could someone tell me how to make this work?

I am using Asp.Net 2.0.

Thank You Very Much,
Miguel

 

[Kalpesh]

Hi Miguel,

I am not sure about what Panel gets rendered as (in HTML).
However, put an alert before changing the style

eg.
alert(document.getElementById("<%=Panel1.ClientID %>").style.display);

This will help debug javascript code related errors

HTH
Kalpesh