Compilation error message?

Question

Hello

 In my Register.aspx.cs  (a Web form for new users), I am getting the following error:

Compiler Error Message: CS1518: Expected class, delegate, enum, interface, or struct

 

The error refers to this line:  public static string GetConnString()

 

In particular Visual Studio does not like 'string' in the above line which it has underlined in red.

 

How can I correct that, please?

 

Many thanks.