C# Error
CS1105 – Extension method must be static
Reason for the Error & Solution
Extension methods must be static.
Extension methods must be declared as static methods in a non-generic static class.
Example
The following example generates CS1105 because Test is not static:
// cs1105.cs
// Compile with: /target:library
public class Extensions
{
// Single type parameter.
public void Test<T>(this System.String s) {} //CS1105
}
