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Type.GetTypeFromProgID Method (String, String, Boolean)

Gets the type associated with the specified program identifier (progID) from the specified server, specifying whether to throw an exception if an error occurs while loading the type.

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

public static Type GetTypeFromProgID(
	string progID,
	string server,
	bool throwOnError
)

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.

throwOnError
Type: System.Boolean

true to throw any exception that occurs.

-or-

false to ignore any exception that occurs.

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.

ExceptionCondition
ArgumentException

progID is null.

COMException

The specified progID is not registered.

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 Program IDs are not used in Microsoft .NET Framework because they have been superseded by the concept of namespace.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, specifying whether to throw an exception if the ProgID or the server name is invalid.


using System;
class MainApp 
{
    public static void Main()
    {
        try
        {
            // Use server localhost. 
            string theServer="localhost";
            // Use  ProgID HKEY_CLASSES_ROOT\DirControl.DirList.1. 
            string myString1 ="DirControl.DirList.1"; 
            // Use a wrong ProgID WrongProgID. 
            string myString2 ="WrongProgID"; 
            // Make a call to the method to get the type information for the given ProgID.
            Type myType1 =Type.GetTypeFromProgID(myString1,theServer,true);
            Console.WriteLine("GUID for ProgID DirControl.DirList.1 is {0}.", myType1.GUID);
            // Throw an exception because the ProgID is invalid and the throwOnError  
            // parameter is set to True.
            Type myType2 =Type.GetTypeFromProgID(myString2, theServer, true);
        }
        catch(Exception e)
        {
            Console.WriteLine("An exception occurred. The ProgID is wrong.");
            Console.WriteLine("Source: {0}" , e.Source);
            Console.WriteLine("Message: {0}" , e.Message);
        }
    }
}

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

  • SecurityCriticalAttribute 

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

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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