Look at the 4 buttons below. When I double click the button then it should be me to the code behind. Somehow when I double click this there is nothing happen.
For example, I have WebForm1.aspx and one complete Web Form is actually composed by 3 files WebForm1.aspx, WebForm.aspx.designer.cs WebForm.aspx.cs
The reason for this happen is when I import the Web Form from another project Visual Studio is still not smart enough to change the namespace to current project. You have to make sure the namespace for these 3 files are identical for example: