Windows apps
Collapse the table of content
Expand the table of content
Information
The topic you requested is included in another documentation set. For convenience, it's displayed below. Choose Switch to see the topic in its original location.

Type.GetTypeFromProgID Method (String, String)

 
System_CAPS_noteNote

The .NET API Reference documentation has a new home. Visit the .NET API Browser on docs.microsoft.com to see the new experience.

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)

[SecurityCriticalAttribute]
public static Type GetTypeFromProgID(
	string progID,
	string server
)

Parameters

progID
Type: System.String

The progID of the type to get.

server
Type: System.String

The server from which to load the type. If the server name is null, this method automatically reverts to the local machine.

Return Value

Type: System.Type

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, null.

Exception Condition
ArgumentException

prodID is null.

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 Program IDs are not used in Microsoft .NET Framework because they have been superseded by the concept of namespace.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

SecurityCriticalAttribute

Requires full trust for the immediate caller. This member cannot be used by partially trusted or transparent code.

.NET Framework
Available since 1.1
Return to top
Show:
© 2017 Microsoft