PrivateComponentAttribute Class


Identifies a component as a private component that is only seen and activated by components in the same application. This class cannot be inherited.

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


<AttributeUsageAttribute(AttributeTargets.Class, Inherited := True)>
Public NotInheritable Class PrivateComponentAttribute
	Inherits Attribute


Initializes a new instance of the PrivateComponentAttribute class.


When implemented in a derived class, gets a unique identifier for this Attribute.(Inherited from Attribute.)


This API supports the product infrastructure and is not intended to be used directly from your code. Returns a value that indicates whether this instance is equal to a specified object.(Inherited from Attribute.)


Returns the hash code for this instance.(Inherited from Attribute.)


Gets the Type of the current instance.(Inherited from Object.)


When overridden in a derived class, indicates whether the value of this instance is the default value for the derived class.(Inherited from Attribute.)


When overridden in a derived class, returns a value that indicates whether this instance equals a specified object.(Inherited from Attribute.)


Returns a string that represents the current object.(Inherited from Object.)

System_CAPS_pubinterfaceSystem_CAPS_privmethod_Attribute.GetIDsOfNames(Guid, IntPtr, UInt32, UInt32, IntPtr)

Maps a set of names to a corresponding set of dispatch identifiers.(Inherited from Attribute.)

System_CAPS_pubinterfaceSystem_CAPS_privmethod_Attribute.GetTypeInfo(UInt32, UInt32, IntPtr)

Retrieves the type information for an object, which can be used to get the type information for an interface.(Inherited from Attribute.)


Retrieves the number of type information interfaces that an object provides (either 0 or 1).(Inherited from Attribute.)

System_CAPS_pubinterfaceSystem_CAPS_privmethod_Attribute.Invoke(UInt32, Guid, UInt32, Int16, IntPtr, IntPtr, IntPtr, IntPtr)

Provides access to properties and methods exposed by an object.(Inherited from Attribute.)

For more information about using attributes, see Extending Metadata Using Attributes.

The following code example shows the use of the PrivateComponentAttribute type.

Imports System
Imports System.EnterpriseServices
Imports System.Reflection

' References:
' System.EnterpriseServices

' Note: Access checks must be performed at the component level to allow access
' to private components.

<assembly: ApplicationAccessControl(False, AccessChecksLevel := AccessChecksLevelOption.ApplicationComponent)>

<PrivateComponent()>  _
Public Class PrivateComponentAttribute_Example
    Inherits ServicedComponent

    Public Sub Example() 
        ' Display some output.
        MsgBox("Private component called successfully.")

    End Sub 'Example
End Class 'PrivateComponentAttribute_Example

Public Class PrivateComponentAttribute_Test
    Inherits ServicedComponent

    Public Sub Test() 
        ' Create a new instance of the example class.
        Dim example As New PrivateComponentAttribute_Example()

        ' Call a method on the class.

    End Sub 'Test
End Class 'PrivateComponentAttribute_Test

.NET Framework
Available since 1.1

Any public static ( Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

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