Hi,
Thank you for posting!
Based on my understanding, the questions are:
1) Is iframe allowed in design mode
2) How to set the src property value of iframe
3) How to display an iframe when a button is clicked in a Web User Control
If there's anything I misunderstood, please feel free to post here.
I think currently the Visual Studio 2005 webform designer is unable to
render the iframe content directly in another html page or webform. But you
can change its properties such as width, height easily using the Properties
window.
To set the src property of iframe, simply use the properties window to
change it. For url path format, it's just like any other resources, such as
"../pages/mypage.html". Unfortunately, based on my test, it seems we cannot
use application root path "~" here, even make the <iframe element
runat="server". And since a Web User Control will be used by other pages,
the url path is actually related to the using page, not the user control,
so we need to be careful about the iframe path.
To display an iframe on demand, we can put the iframe element in a
<asp
anel> control and we can easily change the panel's visibility to show
or hide the iframe.
Hope this helps.
If there's anything unclear, please feel free to post here.
Regards,
Walter Wang
Microsoft Online Community Support
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