Modal Popup extender

Recently I was using the Modal Popup Extender that comes with the ASP.NET AJAX Control Toolkit.

I’ve used this before in other web applications and never had any problems, but when I tried to use it this time I started receiving a JavaScript error “Object Not Found”.

I was searching the net to see if anybody else was encountering this problem and I found this post.

http://forums.asp.net/p/1329132/2820906.aspx

About half way down the page CharlesF indicates that he was encountering the problem as well.

He ended up moving the Modal Popup Extender and it’s Panel to the top of the markup in the ASP.net page. I tried his solution and it worked for me as well.

Not sure why this seem to work but it does.

Hope this helps other developers.