IsClass Property

Type.IsClass Property

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

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

'Declaration
Public ReadOnly Property IsClass As Boolean
'Usage
Dim instance As Type
Dim value As Boolean

value = instance.IsClass

/** @property */
public final boolean get_IsClass ()

public final function get IsClass () : boolean

Property Value

true if the Type is a class; otherwise, false.

This property returns true for Type instances representing Enum and ValueType.

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

If the current Type represents a constructed generic type, this property returns true if the generic type definition is a class definition; that is, it does not define an interface or a 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 instance of a type and indicates whether the type is a class.

Imports System
Imports System.Reflection
Imports Microsoft.VisualBasic

Public Class MyDemoClass
End Class 'MyDemoClass

Public Class MyTypeClass
    Public Shared Sub Main()
        Try
            Dim myType As Type = GetType(MyDemoClass)
            ' Get and display the 'IsClass' property of the 'MyDemoClass' instance.
            Console.WriteLine(ControlChars.Cr + "Is the specified type a class? {0}.", myType.IsClass.ToString())
        Catch e As Exception
            Console.WriteLine(ControlChars.Cr + "An exception occurred: {0}.", e.Message.ToString())
        End Try
    End Sub 'Main
End Class 'MyTypeClass

import System.*;
import System.Reflection.*;
public class MyDemoClass
{
} //MyDemoClass

public class MyTypeClass
{
    public static void main(String[] args)
    {
        try {
            Type myType = Type.GetType("MyDemoClass");
            // Get and display the 'IsClass' property of the 
            // 'MyDemoClass' instance.
            Console.WriteLine("\nIs the specified type a class? {0}.", System.
                Convert.ToString(myType.get_IsClass()));
        }
        catch (System.Exception e) {
            Console.WriteLine("\nAn exception occurred: {0}.", e.get_Message());
        }
    } //main
} //MyTypeClass

Windows 98, Windows 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 .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.

.NET Framework

Supported in: 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 2.0, 1.0

Community Additions

ADD
Show:
© 2016 Microsoft