Not all code paths return a value - where?

Question

I have the following C# code. For reasons I won\'t go into, this is the required way of localising.

My problem is, I cannot for the life of me figure out what path is no

Answer 1

if(StringNotFound)

If this is false there is no else statment to catch it.

use

if(StringNotFound)
{
//your code
}
Else
{
return "String not found!";
}