Export (0) Print
Expand All

Type.IsPointer Property

Gets a value indicating whether the Type is a pointer.

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

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

value = instance.IsPointer

Property Value

Type: System.Boolean
true if the Type is a pointer; otherwise, false.

Implements

_Type.IsPointer

If the current Type represents a generic type, or 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 shows a use of the IsPointer property.

Imports System
Imports System.Reflection
Imports Microsoft.VisualBasic
Public Class MyTypeDelegator
    Inherits TypeDelegator
    Public myElementType As String = Nothing 
    Private myType As Type = Nothing 
    Public Sub New(ByVal myType As Type)
        MyBase.New(myType)
        Me.myType = myType
    End Sub 'New 
    ' Override Type.HasElementTypeImpl(). 
    Protected Overrides Function HasElementTypeImpl() As Boolean 
        ' Determine whether the type is an array. 
        If myType.IsArray Then
            myElementType = "array" 
            Return True 
        End If 
        ' Determine whether the type is a reference. 
        If myType.IsByRef Then
            myElementType = "reference" 
            Return True 
        End If 
        ' Determine whether the type is a pointer. 
        If myType.IsPointer Then
            myElementType = "pointer" 
            Return True 
        End If 
        ' The type is not a reference, array, or pointer type. 
        Return False 
    End Function 'HasElementTypeImpl
End Class 'MyTypeDelegator
Public Class Type_HasElementTypeImpl
    Public Shared Sub Main()
        Try 
            Dim myInt As Integer = 0
            Dim myArray(4) As Integer 
            Dim myType As New MyTypeDelegator(myArray.GetType())
            Console.WriteLine(ControlChars.NewLine + "Determine whether a variable refers to an array or pointer or reference type." + ControlChars.NewLine)
            ' Determine whether myType is an array, pointer, reference type.   
            If myType.HasElementType Then
                Console.WriteLine("The type of myArray is {0}.", myType.myElementType.ToString())
            Else
                Console.WriteLine("myArray is not an array, pointer, or reference type.")
            End If
            myType = New MyTypeDelegator(myInt.GetType())
            ' Determine whether myType is an array, pointer, reference type.  
            If myType.HasElementType Then
                Console.WriteLine("The type of myInt is {0}.", myType.myElementType.ToString())
            Else
                Console.WriteLine("myInt is not an array, pointer, or reference type.")
            End If 
        Catch e As Exception
            Console.WriteLine("Exception: {0}", e.Message.ToString())
        End Try 
    End Sub 'Main
End Class 'Type_HasElementTypeImpl

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC, Xbox 360, Zune

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

.NET Framework

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

.NET Compact Framework

Supported in: 3.5, 2.0, 1.0

XNA Framework

Supported in: 3.0, 2.0, 1.0

Community Additions

ADD
Show:
© 2014 Microsoft