Type.BaseType Property

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.NET Framework Class Library

Type.BaseType Property

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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 Nothing if the current Type represents the Object class or an interface.

Implements

_Type.BaseType

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 Nothing is returned as the base type of Object.

Interfaces inherit from zero or more base interfaces; therefore, this property returns Nothing if the Type object represents an interface. The base interfaces can be determined with GetInterfaces or FindInterfaces.

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 TestType 
{
    public static void Main() 
    {
        Type t = typeof(int);
        Console.WriteLine("{0} inherits from {1}.", t,t.BaseType);
    }
}


.NET Framework

Supported in: 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Portable Class Library

Supported in: Portable Class Library

Windows 8 Release Preview, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 SP2, Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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