Strange Postback Problem in ASP .NET
It must be my week to find really obscure problems. I have this ASP .NET page where an editor is loaded in a frame. The editor consists of a textbox and a dropdownlist. The user can enter the first few characters of the target value, and tabbing off of the textbox causes a postback. On the postback the dropdown will be updated with the first match identified in the textbox.
If the user clicks the dropdown while the page is preparing to postback, the page disappears. Further, I can't load any other pages in the frame.
Take the page out of the frame, and it works flawlessly. This isn't really an option in my application, but I did it for testing purposes just to see.
Apparently someone else had the same issue and its a known bug.
Hopefully this blog will save someone else the 2 days of research that this problem cost me.
Now to figure out the best way to work around the issue...