Visual studio 2010 not generating new control definitions in designer file Visual Studio 2010 Designer File Not Updating This seems to me to be related to the Application Page template, as the Designer works fine for user controls in the same project, and the Application Page template doesn't allow Design View. The designer file is registered in the project file, but fails to function as expected. Either of those should force VS to regenerate the designer file. here is a trick for this little problem: add a user control to your project.
One suggestion that I read online was to delete the file on the file system and recreate a blank (.txt) file with the same name (just change the extension) and add only the namespace and partial class declarations. copy all the markup code over to this user control.
Now if you do not have access at all, I suggest to create your own variable externalisation solution.
design away, then copy the markup back into your application page to start refining your code to work as a sharepoint item.
Meh, I'll just keep defining the controls in the code-behind by hand like I've been doing.
This is a question I receive on a regular enough basis that I felt that it would be worth posting on the Javelin blog.
This tip as well as many other great tips can be found on the SOLIDWORKS Knowledge base which can be accessed through the SOLIDWORKS Customer Portal at https://customerportal.solidworks.com/. 2012), NOTE: the entire Solid Works Data folder, for backup purposes.