I have created some class A.cs whose function is to be used in B.cs then B.cs is called in ASP.net webforms in codebehind. My files A.cs and B.cs is kept in App\_Code folder.

The issue is if i call the function of B.cs in asp.net webform codebehind i get error that function is not defind are you missing an assembly? After researching on SO, i found to make class build action to compile. Though it solved the issue, but when i build the app i got error that my assembly is present in root as app\_code and assembly.dll both

Then i reverted the process, and got same function not found issue.

I am seriously unable to figure out,How to solve this???