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Type.IsVisible Property

Gets a value indicating whether the Type can be accessed by code outside the assembly.

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

'Declaration
Public ReadOnly Property IsVisible As Boolean

Property Value

Type: System.Boolean
true if the current Type is a public type or a public nested type such that all the enclosing types are public; otherwise, false.

Use this property to determine whether a type is part of the public interface of a component assembly.

The following code example tests two classes, only one of which is visible outside the assembly.

Imports System

Friend Class InternalOnly
    Public Class Nested
    End Class 
End Class 

Public Class Example
    Public Class Nested
    End Class 

    Public Shared Sub Main()
        With GetType(InternalOnly.Nested)
            Console.WriteLine("Is the " & .FullName _ 
                & " class visible outside the assembly? " & .IsVisible)
        End With 

        With GetType(Example.Nested)
            Console.WriteLine("Is the " & .FullName _ 
                & " class visible outside the assembly? " & .IsVisible)
        End With 
    End Sub 
End Class 

' This example produces the following output: 

'Is the InternalOnly+Nested class visible outside the assembly? False 
'Is the Example+Nested class visible outside the assembly? True

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Portable Class Library

Supported in: Portable Class Library

Supported in: Windows Phone 8.1

Supported in: Windows Phone Silverlight 8.1

Supported in: Windows Phone Silverlight 8

Windows Phone 8.1, Windows Phone 8, Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), 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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