guid

Empty is a property, not a method. So to get the value you use: Guid.Empty without paranthesis.

ive tried something like guid.Empty(); but i havent found a value (?) like .Empty().

thx for the replies, i'll tell my co-worker about those 2 suggestions and have him try it out and get back to you on the results

Or just check with empty: if (myGuid == Guid.Empty) { do something... }

have you tried something like that? // CompareTo returns 0 if the guids have same value. if ( myGuid1.CompareTo( myGuid2 ) == 0 ) System.Console.WriteLine( "myGuid1 compares to myGuid2" ); else System.Console.WriteLine( "myGuid1 does not compare to myGuid2" ); from the msdn. try to compare your guid to the empty myGuid2 and get the return type.