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.
Assembly: mscorlib (in mscorlib.dll)
<SecurityCriticalAttribute> Public Shared Function GetTypeFromProgID ( progID As String, server As String ) As Type
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.TypeThe 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 Program IDs are not used in Microsoft .NET Framework because they have been superseded by the concept of namespace.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.
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
Requires full trust for the immediate caller. This member cannot be used by partially trusted or transparent code.
Available since 1.1