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Type.IsInterface Property

Gets a value indicating whether the Type is an interface; that is, not a class or a value type.

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

public bool IsInterface { get; }
/** @property */
public final boolean get_IsInterface ()

public final function get IsInterface () : boolean

Not applicable.

Property Value

true if the Type is an interface; otherwise, false.

The ClassSemanticsMask distinguishes a type declaration as class, interface or value type.

If the current Type represents a type parameter in the definition of a generic type or generic method, this property always returns false.

This property is read-only.

The following example creates an interface, checks for the interface type, and indicates whether a class has the IsInterface property set.

using System;
// Declare an interface.
interface myIFace
{
}
class MyIsInterface 
{
    public static void Main(string []args)
    {
        try
        {
            // Get the IsInterface attribute for myIFace.
            bool myBool1 = typeof(myIFace).IsInterface;    
            //Display the IsInterface attribute for myIFace.
            Console.WriteLine("Is the specified type an interface? {0}.", myBool1);
            // Get the attribute IsInterface for MyIsInterface.
            bool myBool2 = typeof(MyIsInterface).IsInterface;    
            //Display the IsInterface attribute for MyIsInterface.
            Console.WriteLine("Is the specified type an interface? {0}.", myBool2);         
        }
        catch(Exception e)
        {
            Console.WriteLine("\nAn exception occurred: {0}.", e.Message);
        }
    }
}

import System.*;

// Declare an interface.
interface myIFace
{
} //myIFace

class MyIsInterface
{
    public static void main(String[] args)
    {
        try {
            // Get the IsInterface attribute for myIFace.
            boolean myBool1 = myIFace.class.ToType().get_IsInterface();

            //Display the IsInterface attribute for myIFace.
            Console.WriteLine("Is the specified type an interface? {0}.",
                System.Convert.ToString(myBool1));

            // Get the attribute IsInterface for MyIsInterface.
            boolean myBool2 = MyIsInterface.class.ToType().get_IsInterface();

            //Display the IsInterface attribute for MyIsInterface.
            Console.WriteLine("Is the specified type an interface? {0}.",
                System.Convert.ToString(myBool2));
        }
        catch (System.Exception e) {
            Console.WriteLine("\nAn exception occurred: {0}.",
                e.get_Message());
        }
    } //main
} //MyIsInterface

Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 2.0, 1.0

XNA Framework

Supported in: 1.0

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