window.showModalDialog and ASP.NET

G

Guest

I'm not quite sure if the problem I'm having is a restriction of
showModalDialog or if there is a way around it.

The web app I am working requires the user to select a record from a list.
I pop this list (generated by a second page) in a second window. When the
user selects a record on the datagrid, I close the second window and submit
the calling page.

If I try to use showModalDialog, the dialog pops up just fine and everything
is rendered correctly. However, as soon as the page posts back a new browser
window is opened with what appears to be the response for the post back.

Is there a way around this behavior?
 
K

Kikoz

This is done by design. Soon you gonna discover that JScript window.history
doesn't exist in modal dialog, too :)
The only way around this prob is to place iFrame inside of a simple static
html page and make the source of that iframe your aspx page. Then it'll post
correctly.

For example:

Simple HTML page - /SIMPLE_HTML_PAGE.html:

<html>
<head>
<script language="javascript">
function InitFrame(){document.all.frContainer.src =
window.dialogArguments;}
</script>
</head>
<body onload="InitFrame();">
<iframe id="frContainer" frameborder="0" height="100%"
width="100%"></iframe>
</body>
</html>


JScript function (simplified) on your "base" page which has "onclick" to
open modal dialog:

function openDamnDialog(url)
{
var returnedValue =
window.showModalDialog("/SIMPLE_HTML_PAGE.html","/URL_OF_ASPX_PAGE_THAT_NEEDS_TO_USE_DIALOG.aspx","help:no;dialogWidth:500px;dialogHeight:400px;resizable:yes;status:no;scroll:no;"));
if(returnedValue)
{
doSomethig();
//Submit the page if you want
formBlah.submit();
}
}


Call this JScript method from your "base" page. Implement some JScript
return value on your aspx list, if you need to. Basically, there is nothing
difficult about this.

Regards,
Kikoz
 

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