Topic: Trying to learn some C# Question about String.Compare

[A_LOTA_NOTA]

I'm sure this is something simple that I'm missing. This is an exaple I found for "Sting.Compare" but I can't get it to compile.

Code: [Select]

public class Test
{
// The program begains inside Main
      public static void Main()
      {
//code goes here

string s1 = "Jon";
string s2 = "Jonny";

  if (String.Compare (s1 , s2) < 0)
        System.Console.Out.WriteLine(s1 + " comes before " + s2);

       }// end of main
}// end of Test 
Thanks for the help!

[T.Willey]

C# is case sensitive, so String.Compare is not equal to string.Compare.

This might be better placed in the .Net forum.

[A_LOTA_NOTA]

C# is case sensitive, so String.Compare is not equal to string.Compare.

That did it!! Thanks!!

[T.Willey]

C# is case sensitive, so String.Compare is not equal to string.Compare.

That did it!! Thanks!!

Glad it worked, you're welcome.

[Kerry]

Actually String and string are functionally the same .. string is aliased from String ..

a piccy ... it compiles for me .

[T.Willey]

Actually String and string are functionally the same .. string is aliased from String ..

a piccy ... it compiles for me .

You are correct.  I just tried it in one of my routines, and it compiled also.  I don't know why it worked for the OP then.  Maybe it fixed something else in the code.  Thanks for the heads up Kerry.

[A_LOTA_NOTA]

Actually String and string are functionally the same .. string is aliased from String ..

a piccy ... it compiles for me .

You are correct.  I just tried it in one of my routines, and it compiled also.  I don't know why it worked for the OP then.  Maybe it fixed something else in the code.  Thanks for the heads up Kerry.

I changed the "S" in String.Compare to lower case & it compiles. Then I change it back to upper case I get "Test.cs(11,7): error CS0103: The name 'String' does not exist in the current context

[SomeCallMeDave]

Perhaps try adding
     using System;


or using fully qualified name System.String.Compare.....

[Glenn R]

As has been said above, C# is a CASE SENSITIVE language and also to add a 'using' directive for 'System' in your code, as your use of System.Console.Out.Writeline indicates you have not.

However, it goes a bit deeper than has already been said. C# defines aliases for the CTS's (Common Type System) datatypes. So, for example, 'int' in C# is actually an alias for the CTS type System.Int32 as is 'string' an alias for System.String.

So, as Dave mentioned above, you would have to have a using declaration for System (using System;) at the head of your code file, OR, use fully qualified CTS types in your code (which I would NOT recommend).

If you were to NOT use the using system declaration, you would have to write System.String.Compare(yada yada)...which will make your code harder to read.

Cheers,
Glenn.