Type.GetTypeFromProgID Method

Definition

Namespace:

System

Assembly:

System.Runtime.dll

Gets the type associated with the specified program identifier (ProgID).

Overloads

GetTypeFromProgID(String)	Gets the type associated with the specified program identifier (ProgID), returning null if an error is encountered while loading the Type.
GetTypeFromProgID(String, Boolean)	Gets the type associated with the specified program identifier (ProgID), specifying whether to throw an exception if an error occurs while loading the type.
GetTypeFromProgID(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.
GetTypeFromProgID(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.

GetTypeFromProgID(String)

Source:

Type.cs

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

public:
 static Type ^ GetTypeFromProgID(System::String ^ progID);

[System.Runtime.Versioning.SupportedOSPlatform("windows")]
public static Type? GetTypeFromProgID (string progID);

[<System.Runtime.Versioning.SupportedOSPlatform("windows")>]
static member GetTypeFromProgID : string -> Type

Public Shared Function GetTypeFromProgID (progID As String) As Type

Parameters

progID

String

The ProgID of the type to get.

Returns

Type

The type associated with the specified ProgID, if progID is a valid entry in the registry and a type is associated with it; otherwise, null.

Attributes

SupportedOSPlatformAttribute

Exceptions

ArgumentException

progID is null.

Remarks

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 ProgIDs are not used in the Microsoft .NET Framework because they have been superseded by the concept of namespace.

See also

• GetProgIdForType(Type)

GetTypeFromProgID(String, Boolean)

Source:

Type.cs

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

public:
 static Type ^ GetTypeFromProgID(System::String ^ progID, bool throwOnError);

[System.Runtime.Versioning.SupportedOSPlatform("windows")]
public static Type? GetTypeFromProgID (string progID, bool throwOnError);

[<System.Runtime.Versioning.SupportedOSPlatform("windows")>]
static member GetTypeFromProgID : string * bool -> Type

Public Shared Function GetTypeFromProgID (progID As String, throwOnError As Boolean) As Type

Parameters

progID

String

The ProgID of the type to get.

throwOnError

Boolean

true to throw any exception that occurs.

-or-

false to ignore any exception that occurs.

Returns

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.

Attributes

SupportedOSPlatformAttribute

Exceptions

ArgumentException

progID is null.

COMException

The specified ProgID is not registered.

Examples

The following example retrieves a type by passing a ProgID, specifying whether to throw an exception if the ProgID is invalid. The example then displays the ClassID related to the ProgID, along with any applicable exception message.

using namespace System;
int main()
{
   try
   {
      
      // Use the ProgID HKEY_CLASSES_ROOT\DirControl.DirList.1.
      String^ myString1 = "DIRECT.ddPalette.3";
      
      // Use a nonexistent ProgID WrongProgID.
      String^ myString2 = "WrongProgID";
      
      // Make a call to the method to get the type information of the given ProgID.
      Type^ myType1 = Type::GetTypeFromProgID( myString1, 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, true );
   }
   catch ( Exception^ e ) 
   {
      Console::WriteLine( "An exception occurred." );
      Console::WriteLine( "Source: {0}", e->Source );
      Console::WriteLine( "Message: {0}", e->Message );
   }

}

using System;
class MainApp
{
    public static void Main()
    {
        try
        {
            // Use the ProgID HKEY_CLASSES_ROOT\DirControl.DirList.1.
            string myString1 ="DIRECT.ddPalette.3";
            // Use a nonexistent ProgID WrongProgID.
            string myString2 ="WrongProgID";
            // Make a call to the method to get the type information of the given ProgID.
            Type myType1 =Type.GetTypeFromProgID(myString1,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,true);
        }
        catch(Exception e)
        {
            Console.WriteLine("An exception occurred.");
            Console.WriteLine("Source: {0}", e.Source);
            Console.WriteLine("Message: {0}", e.Message);
        }
    }
}

open System

try
    // Use the ProgID HKEY_CLASSES_ROOT\DirControl.DirList.1.
    let myString1 ="DIRECT.ddPalette.3"
    // Use a nonexistent ProgID WrongProgID.
    let myString2 ="WrongProgID"
    // Make a call to the method to get the type information of the given ProgID.
    let myType1 =Type.GetTypeFromProgID(myString1, true)
    printfn $"GUID for ProgID DirControl.DirList.1 is {myType1.GUID}."
    // Throw an exception because the ProgID is invalid and the throwOnError
    // parameter is set to True.
    let myType2 =Type.GetTypeFromProgID(myString2, true)
    ()
with e ->
    printfn "An exception occurred."
    printfn $"Source: {e.Source}"
    printfn $"Message: {e.Message}"

Class MainApp
    Public Shared Sub Main()
        Try
            ' Use the ProgID HKEY_CLASSES_ROOT\DirControl.DirList.1.
            Dim myString1 As String = "DIRECT.ddPalette.3"
            ' Use a nonexistent ProgID WrongProgID.
            Dim myString2 As String = "WrongProgID"
            ' Make a call to the method to get the type information of the given ProgID.
            Dim myType1 As Type = Type.GetTypeFromProgID(myString1, True)
            Console.WriteLine("GUID for ProgID DirControl.DirList.1 is {0}.", myType1.GUID.ToString())
            ' Throw an exception because the ProgID is invalid and the throwOnError 
            ' parameter is set to True.
            Dim myType2 As Type = Type.GetTypeFromProgID(myString2, True)
        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
End Class

Remarks

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.

See also

• GetProgIdForType(Type)

GetTypeFromProgID(String, String)

Source:

Type.cs

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.

public:
 static Type ^ GetTypeFromProgID(System::String ^ progID, System::String ^ server);

[System.Runtime.Versioning.SupportedOSPlatform("windows")]
public static Type? GetTypeFromProgID (string progID, string? server);

[<System.Runtime.Versioning.SupportedOSPlatform("windows")>]
static member GetTypeFromProgID : string * string -> Type

Public Shared Function GetTypeFromProgID (progID As String, server As String) As Type

Parameters

progID

String

The progID of the type to get.

server

String

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

Returns

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.

Attributes

SupportedOSPlatformAttribute

Exceptions

ArgumentException

progID is null.

Examples

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 namespace System;
int 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 == nullptr )
      {
         throw gcnew 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 );
   }

}

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);
        }		
    }
}

open System

try
    // Use the ProgID localhost\HKEY_CLASSES_ROOT\DirControl.DirList.1.
    let theProgramID ="DirControl.DirList.1"
    // Use the server name localhost.
    let theServer="localhost"
    // Make a call to the method to get the type information for the given ProgID.
    let myType =Type.GetTypeFromProgID(theProgramID, theServer)
    if myType = null then
        raise (Exception "Invalid ProgID or Server.")
    printfn $"GUID for ProgID DirControl.DirList.1 is {myType.GUID}."
with e ->
    printfn "An exception occurred."
    printfn $"Source: {e.Source}"
    printfn $"Message: {e.Message}"

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
End Class

Remarks

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.

See also

• GetProgIdForType(Type)

GetTypeFromProgID(String, String, Boolean)

Source:

Type.cs

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.

public:
 static Type ^ GetTypeFromProgID(System::String ^ progID, System::String ^ server, bool throwOnError);

[System.Runtime.Versioning.SupportedOSPlatform("windows")]
public static Type? GetTypeFromProgID (string progID, string? server, bool throwOnError);

[<System.Runtime.Versioning.SupportedOSPlatform("windows")>]
static member GetTypeFromProgID : string * string * bool -> Type

Public Shared Function GetTypeFromProgID (progID As String, server As String, throwOnError As Boolean) As Type

Parameters

progID

String

The progID of the Type to get.

server

String

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

throwOnError

Boolean

true to throw any exception that occurs.

-or-

false to ignore any exception that occurs.

Returns

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.

Attributes

SupportedOSPlatformAttribute

Exceptions

ArgumentException

progID is null.

COMException

The specified progID is not registered.

Examples

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 namespace System;
int 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 );
   }

}

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);
        }
    }
}

open System
try
    // Use server localhost.
    let theServer="localhost"
    // Use  ProgID HKEY_CLASSES_ROOT\DirControl.DirList.1.
    let myString1 ="DirControl.DirList.1"
    // Use a wrong ProgID WrongProgID.
    let myString2 ="WrongProgID"
    // Make a call to the method to get the type information for the given ProgID.
    let myType1 =Type.GetTypeFromProgID(myString1, theServer, true)
    printfn $"GUID for ProgID DirControl.DirList.1 is {myType1.GUID}."
    // Throw an exception because the ProgID is invalid and the throwOnError
    // parameter is set to True.
    let myType2 =Type.GetTypeFromProgID(myString2, theServer, true)
    ()
with e ->
    printfn "An exception occurred. The ProgID is wrong."
    printfn $"Source: {e.Source}"
    printfn $"Message: {e.Message}"

Class MainApp
    Public Shared Sub Main()
        Try
            ' Use Server localhost.
            Dim theServer As String = "localhost"
            ' Use  ProgID HKEY_CLASSES_ROOT\DirControl.DirList.1.
            Dim myString1 As String = "DirControl.DirList.1"
            ' Use a wrong ProgID WrongProgID.
            Dim myString2 As String = "WrongProgID"
            ' Make a call to the method to get the type information for the given ProgID.
            Dim myType1 As Type = Type.GetTypeFromProgID(myString1, theServer, True)
            Console.WriteLine("GUID for ProgID DirControl.DirList.1 is {0}.", myType1.GUID.ToString())
            ' Throw an exception because the ProgID is invalid and the throwOnError 
            ' parameter is set to True.
            Dim myType2 As Type = Type.GetTypeFromProgID(myString2, theServer, True)
        Catch e As Exception
            Console.WriteLine("An exception occurred. The ProgID is wrong.")
            Console.WriteLine("Source: {0}", e.Source.ToString())
            Console.WriteLine("Message: {0}", e.Message.ToString())
        End Try
    End Sub
End Class

Remarks

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.

See also

• GetProgIdForType(Type)
• TypeLoadException