Unable to get a popup to recognize hidden field ??

[aaa]

I am unable to get a my popup to recognize a hidden field on the calling
page. I have this working on a different page although that page is a tad
simpler. The page I am trying now calls from a templated column of a grid
from a UC but the hidden field that I am calling is on the main page. Here
is the code:

Popup:

window.opener.MainForm.hiddenField.value = 99;
(it states that this object is null or not an object - also I am doing a
RegisterClientScriptBlock with this)


MainPage:

protected System.Web.UI.HtmlControls.HtmlInputHidden hiddenField;


if (hiddenField.Value!="")
{
string str = hiddenField.Value;
}


<input type="hidden" id="hiddenField" name="hiddenField" runat="server">



Any help is appreciated.

 

[Bruce Barker]

most likely your hidden field is contained in another asp.net control, so
its client name is not "hiddenField". view source to see if this is the
problem.

-- bruce (sqlwork.com)

 

[aaa]

This makes sense but it is indeed "hiddenField".

 

[James Doughty]

try using document.getElementbyId('hiddenField').value = 99;

I've come across this problem when I've refernced fields on a page with
user controls.