Type.BaseType Property

May 11, 2014

Gets the type from which the current Type directly inherits.

Namespace:  System
Assembly:  mscorlib (in mscorlib.dll)

public abstract Type BaseType { get; }

Property Value

Type: System.Type
The Type from which the current Type directly inherits, or null if the current Type represents the Object class or an interface.

The base type is the type from which the current type directly inherits. Object is the only type that does not have a base type, therefore null is returned as the base type of Object.

Interfaces inherit from zero or more base interfaces; therefore, this property returns null if the Type object represents an interface. The base interfaces can be determined with GetInterfaces.

If the current Type represents a constructed generic type, the base type reflects the generic arguments. For example, consider the following declarations:

class B<U> { }
class C<T> : B<T> { }

For the constructed type C<int> (C(Of Integer) in Visual Basic), the BaseType property returns B<int>.

If the current Type represents a type parameter of a generic type definition, BaseType returns the class constraint, that is, the class the type parameter must inherit. If there is no class constraint, BaseType returns System.Object.

This property is read-only.

The following example demonstrates using the BaseType property.


using System;
class Example
{
   public static void Demo(System.Windows.Controls.TextBlock outputBlock)
   {
      Type t = typeof(int);
      outputBlock.Text += String.Format("{0} inherits from {1}.", t, t.BaseType) + "\n";
   }
}


Windows Phone OS

Supported in: 8.1, 8.0, 7.1, 7.0

Windows Phone

Show:
© 2014 Microsoft