Can't compare two string from extension methods in C#

Question

I created a string extension method

 public static string ShortID(this string id)
 {
     return id.Substring(5);
 }

When I want to compare two strings using this extension method like this

if(Id.ShortID == IdDest.ShortID)

I have an error :

 CS0019: impossible to apply operator == to operands of type "group of methods" and "group of methods"

I don't understand why, because this extension method returns a string so logically I could compare the results as strings no ?

If you don't use parentheses after the method name, it's just a method group name, not an actual method invocation. See duplicates. — Peter Duniho, Apr 07 '21 at 22:47

score 0 · Answer 1 · answered Apr 07 '21 at 22:48

0

You have to add parentheses to have method calls

if(Id.ShortID() == IdDest.ShortID())

answered Apr 07 '21 at 22:48

NineBerry

1 Answers1