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Type.IsContextful Property

Gets a value indicating whether the Type can be hosted in a context.

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

'Declaration
Public ReadOnly Property IsContextful As Boolean

Property Value

Type: System.Boolean
true if the Type can be hosted in a context; otherwise, false.

Implements

_Type.IsContextful

A context intercepts calls to the class members and enforces policies that are applied to the class, such as synchronization. For more detailed information on remoting contexts, see Context.

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

The following example demonstrates the IsContextful, IsMarshalByRef, and IsPrimitive properties of the Type class. It checks whether the given type can be hosted in the context, whether it can be marshaled by reference, and whether the type is a primitive data type.

Imports System.Runtime.Remoting.Contexts

Public Class ContextBoundClass : Inherits ContextBoundObject
    Public Value As String = "The Value property." 
End Class 

Public Class Example
    Public Shared Sub Main()
         ' Determine whether the types can be hosted in a Context.
         Console.WriteLine("The IsContextful property for the {0} type is {1}.",
                           GetType(Example).Name, GetType(Example).IsContextful)
         Console.WriteLine("The IsContextful property for the {0} type is {1}.",
                           GetType(ContextBoundClass).Name, GetType(ContextBoundClass).IsContextful)
         ' Determine whether the types are marshalled by reference.
         Console.WriteLine("The IsMarshalByRef property of {0} is {1}.",
                           GetType(Example).Name, GetType(Example).IsMarshalByRef)
         Console.WriteLine("The IsMarshalByRef property of {0} is {1}.",
                           GetType(ContextBoundClass).Name, GetType(ContextBoundClass).IsMarshalByRef)
         ' Determine whether the types are primitive datatypes.
         Console.WriteLine("{0} is a primitive data type: {1}.",
                           GetType(Integer).Name, GetType(Integer).IsPrimitive)
         Console.WriteLine("{0} is a primitive data type: {1}.",
                           GetType(String).Name, GetType(String).IsPrimitive)
    End Sub 
End Class 
' The example displays the following output: 
'    The IsContextful property for the Example type is False. 
'    The IsContextful property for the ContextBoundClass type is True. 
'    The IsMarshalByRef property of Example is False. 
'    The IsMarshalByRef property of ContextBoundClass is True. 
'    Int32 is a primitive data type: True. 
'    String is a primitive data type: False.

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0, 1.1

.NET Framework Client Profile

Supported in: 4, 3.5 SP1
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