The closest answer I could find to my question here was this (which has an edit that says it no longer works, and I have confirmed it does not): Visual Studio 2005 Designer not adding controls to the aspx.Designer.cs
Let me start by saying this only happens in one particular web app for me, it's in c# 3.5 and it used to work for about the first 1-1.5 years.
The problem is that when I add a new control to the aspx file via source view the control is not added to the designer file automatically. I've gotten around the problem in the past by adding it manually, but I have a new project to add a large number (50+) fields to the aspx page.
I don't know what other information would be helpful, I've checked my event machine error logs but didn't find anything. If there are error logs specific to VS I could check those if someone pointed out how.
Any help is appreciated.
Thank you,
Jeff
Best Answer
The .aspx file would not "compile" as the was a bad assembly registered on the page. I didn't notice it because it was under "Warnings" not "Errors" in the Error List. Once I removed the bad
<%@ Register...it started working again.