breakpoints in code behind not hit

Question

common problem I guess, but no solution has worked so far:

my breakpoints (asp.net 2.0) get hit nicely in "backend" assemblies but not in the code behind.

i can even see the <% Response.CacheControl="no-cache"; %> line being hit in my asp.net master file but still not the code behind.

I'm using VS 2005, windows 7 32 bit. Any idea what else could I check?

Answer 1

If your code file is newer than the compiled version that is being run against (on the web server, whether it be IIS or the dev server), breakpoints will not be hit (the red circles will be hollow).

Try doing a clean / rebuild and see if that works.

EDIT:

I just noticed something in your last comment; you said you are attaching to the asp.net process. To which process are you attaching? It should be w3wp.exe.

Answer 2

My problem ended up being that I'd created a new configuration for the project, but that none of the debug properties on the project were set for it. So this is what I had to do:

1. Right click the web project and select Properties.
2. Go to the Build tab.
3. Click Advanced.
4. In the dialog, ensure that in the Output section, Debug Info is NOT set to none.