You might be wondering why my classes inside the App_Code folder is not accessible when you are trying to add reference in the code behind page. This is one of the common issue and the solution is very simple. Here in this article I will be helping you to resolve this issue.
To resolve this issue what you have to do is right click on the class file and then select the properties.
To resolve this issue what you have to do is right click on the class file and then select the properties.
