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Type.GetTypeFromProgID Method (String, String)

Gets the type associated with the specified program identifier (progID) from the specified server, returning null if an error is encountered while loading the type.

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

'Declaration
Public Shared Function GetTypeFromProgID ( _
	progID As String, _
	server As String _
) As Type
'Usage
Dim progID As String
Dim server As String
Dim returnValue As Type

returnValue = Type.GetTypeFromProgID(progID, server)
public static Type GetTypeFromProgID (
	String progID, 
	String server
)
public static function GetTypeFromProgID (
	progID : String, 
	server : String
) : Type

Parameters

progID

The progID of the type to get.

server

The server from which to load the type. If the server name is a null reference (Nothing in Visual Basic), this method automatically reverts to the local machine.

Return Value

The type associated with the specified program identifier (progID), if progID is a valid entry in the registry and a type is associated with it; otherwise, a null reference (Nothing in Visual Basic).

Exception typeCondition

ArgumentException

prodID is a null reference (Nothing in Visual Basic).

This method is provided for COM support. Program IDs are not used in Microsoft .NET Framework because they have been superseded by the concept of namespace.

The following example retrieves a type by passing a ProgID and server name. The example then displays the ClassID related to the ProgID, or throws an exception if the ProgID or the server name is invalid.

Imports System
Class MainApp
    Public Shared Sub Main()
        Try
            ' Use ProgID localhost\HKEY_CLASSES_ROOT\DirControl.DirList.1.
            Dim theProgramID As String = "DirControl.DirList.1"
            ' Use Server name localhost.
            Dim theServer As String = "localhost"
            ' Make a call to the method to get the type information for the given ProgID.
            Dim myType As Type = Type.GetTypeFromProgID(theProgramID, theServer)
            If myType Is Nothing Then
                Throw New Exception("Invalid ProgID or server.")
            End If
            Console.WriteLine("GUID for ProgID DirControl.DirList.1 is {0}.", myType.GUID.ToString())
        Catch e As Exception
            Console.WriteLine("An exception occurred.")
            Console.WriteLine("Source: {0}.", e.Source.ToString())
            Console.WriteLine("Message: {0}.", e.Message.ToString())
        End Try
    End Sub 'Main
End Class 'MainApp

Windows 98, Windows 2000 SP4, Windows Millennium Edition, 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
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