The path in visual sudio is different from that in IIS (maps to another application)

If you load a control in Visual Studio, the path can be written as follows:

Usrquestion control = (usrquestion) This. Page. loadcontrol ("/usercontrols/usrquestion. ascx ");

The above load is successful, and the program can find the control in the specified path.

However, when you deploy the website to IIS, the program cannot find the control and the error "the virtual path '/usercontrols/usrquestion. ascx 'maps to another application ". The solution to this problem is to add a wavy line at the beginning of the path, so that controls can be found in Visual Studio and IIS.

Usrquestion control = (usrquestion) This. Page. loadcontrol ("~ /Usercontrols/usrquestion. ascx ");