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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)

public static Type GetTypeFromProgID (
	string progID,
	string server
)
public static Type GetTypeFromProgID (
	String progID, 
	String server
)
public static function GetTypeFromProgID (
	progID : String, 
	server : String
) : Type
Not applicable.

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 Program IDs are not used in Microsoft .NET Framework because they have been superseded by the concept of namespace.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.

using System;
class MainApp 
{
    public static void Main()
    {
        try
        {
            // Use the ProgID localhost\HKEY_CLASSES_ROOT\DirControl.DirList.1.
            string theProgramID ="DirControl.DirList.1"; 
            // Use the server name localhost.
            string theServer="localhost";
            // Make a call to the method to get the type information for the given ProgID.
            Type myType =Type.GetTypeFromProgID(theProgramID,theServer);
            if(myType==null)
            {
                throw new Exception("Invalid ProgID or Server.");
            }
            Console.WriteLine("GUID for ProgID DirControl.DirList.1 is {0}.", myType.GUID);
        }
        catch(Exception e)
        {
            Console.WriteLine("An exception occurred.");
            Console.WriteLine("Source: {0}" , e.Source);
            Console.WriteLine("Message: {0}" , e.Message);
        }		
    }
}

Windows 98, Windows Server 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 Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0, 1.1, 1.0
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