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Call C# codebehind in iframe#2 from c# codebehind in iframe#1

Is it possible to call a c# codebehind method in iframe#2 from c# codebehind in iframe#1 and if so, how?

Bob Learned

Are these IFrames on the same page?

Bob

Gewgala

ASKER

Yeah, sorry they're on the same page, so for example, frames.aspx has 2 iframes, testFrame1 and testFrame2. I would like to call from testFrame1 in codebehind a c# codebehind method in testFrame2 and have it do it's thing.

Bob Learned

Can you show me how your IFrames are declared in the HTML designer, please?

Bob

Gewgala

ASKER

This is frames.aspx:

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="frame2.aspx.cs" Inherits="frame2" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="Head1" runat="server">
<title>Untitled Page</title>
</head>
<body>
<form id="form2" runat="server">

<iframe id="ImagesFrame" src="frame1.aspx" width="500" height="250"></iframe><br />
<iframe id="replacementFrame" src="frame2.aspx" width="500" height="200"></iframe>

</form>
</body>
</html>

SOLUTION

surajguptha

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Bob Learned

In order to reference any control in the code-behind, you need the runat="server" attribute:

<iframe id="ImagesFrame" src="frame1.aspx" width="500" height="250" runat="server"></iframe><br />
<iframe id="replacementFrame" src="frame2.aspx" width="500" height="200" runat="server"></iframe>

Bob

Gewgala

ASKER

Ok, assuming I add in runat="server" (which I forgot to put in the code I posted, sorry about that) how would I go about it then?

Bob Learned

Are you trying to access code in frame1.aspx from frame2.aspx?

Bob

Gewgala

ASKER

In frame1.aspx.cs, I would like to have it that a call is made, on page load (not from a click or mouse over) to a c# codebehind method in frame2.aspx.cs. frame1.aspx is in the first frame, frame2.aspx is in the second frame.

surajguptha

I dont think you can do that, acccessing the code behind of one page from another. If you could let us know what you are trying to achieve, we could help better.

Gewgala

ASKER

well what if I did this... from frame1 I have code that loads a page in frame2, but the url that I specify is one with a variable attached to it, such as frame2.src = "page.aspx?variable=value" and then have the codebehind execute accordingly?

ASKER CERTIFIED SOLUTION

Bob Learned

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Gewgala

ASKER

Yeah, but what's cool is that it works! Thank you for supplying information on how to accomplish this.