Type::GetTypeFromProgID Method (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.
Assembly: mscorlib (in mscorlib.dll)
[SecurityPermissionAttribute(SecurityAction::LinkDemand, Flags = SecurityPermissionFlag::UnmanagedCode)] public: static Type^ GetTypeFromProgID( String^ progID, bool throwOnError )
Parameters
- progID
- Type: System::String
The ProgID of the type to get.
- throwOnError
- Type: System::Boolean
true to throw any exception that occurs.
-or-
false to ignore any exception that occurs.
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, nullptr.
| Exception | Condition |
|---|---|
| ArgumentException | progID is nullptr. |
| COMException | The specified ProgID is not registered. |
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 ); } }
- SecurityPermission
for executing unmanaged code. Associated enumeration: SecurityPermissionFlag::UnmanagedCode
Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.