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What is the difference between typeof(), GetType() and IS in C# and VB.NET

ByAdministrator

Mar 20, 2015 , , , , , , , , , , , , , , , , , , , , , , , , ,

What is the difference between typeof(), GetType() and is?

  • typeof() takes a type name specified at compile Time.
  • GetType() gets the Type of an Object at runtime
  • is returns true if an instance is in the inheritance tree. Since the is Keyword is casting the object, you should use it with care.

    • here is an example.

    class Employee { } 
class Developer : Employee { }

void PrintTypes(Employee e) { 
    print(e.GetType() == typeof(Employee)) // false 
    print(e is Employee)                   // true 
    print(e.GetType() == typeof(Developer))    // true
}

    By Administrator

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