ProgIdAttribute Class
Allows the user to specify the ProgID of a class.
Assembly: mscorlib (in mscorlib.dll)
The ProgIdAttribute type exposes the following members.
| Name | Description | |
|---|---|---|
![]() | ProgIdAttribute | Initializes a new instance of the ProgIdAttribute with the specified ProgID. |
| Name | Description | |
|---|---|---|
![]() | Equals | Infrastructure. Returns a value that indicates whether this instance is equal to a specified object. (Inherited from Attribute.) |
![]() | Finalize | Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.) |
![]() | GetHashCode | Returns the hash code for this instance. (Inherited from Attribute.) |
![]() | GetType | Gets the Type of the current instance. (Inherited from Object.) |
![]() | IsDefaultAttribute | When overridden in a derived class, indicates whether the value of this instance is the default value for the derived class. (Inherited from Attribute.) |
![]() | Match | When overridden in a derived class, returns a value that indicates whether this instance equals a specified object. (Inherited from Attribute.) |
![]() | MemberwiseClone | Creates a shallow copy of the current Object. (Inherited from Object.) |
![]() | ToString | Returns a string that represents the current object. (Inherited from Object.) |
| Name | Description | |
|---|---|---|
![]() ![]() | _Attribute::GetIDsOfNames | Maps a set of names to a corresponding set of dispatch identifiers. (Inherited from Attribute.) |
![]() ![]() | _Attribute::GetTypeInfo | Retrieves the type information for an object, which can be used to get the type information for an interface. (Inherited from Attribute.) |
![]() ![]() | _Attribute::GetTypeInfoCount | Retrieves the number of type information interfaces that an object provides (either 0 or 1). (Inherited from Attribute.) |
![]() ![]() | _Attribute::Invoke | Provides access to properties and methods exposed by an object. (Inherited from Attribute.) |
You can apply this attribute to classes.
ProgIDs are automatically generated for a class by combining the namespace with the type name. This can produce an invalid ProgID however, as ProgIDs are limited to 39 characters and can contain no punctuation other than a period. In such case, a ProgID can be manually assigned to the class using ProgIdAttribute.
The following example demonstrates how to apply ProgIdAttribute on a class. The application then gets all attributes of MyClass, and prints the Value property of ProgIdAttribute.
[ClassInterface(ClassInterfaceType::AutoDispatch)] [ProgId("InteropSample.MyClass")] public ref class MyClass { public: MyClass(){} }; int main() { try { AttributeCollection^ attributes; attributes = TypeDescriptor::GetAttributes( MyClass::typeid ); ProgIdAttribute^ progIdAttributeObj = dynamic_cast<ProgIdAttribute^>(attributes[ ProgIdAttribute::typeid ]); Console::WriteLine( "ProgIdAttribute's value is set to : {0}", progIdAttributeObj->Value ); } catch ( Exception^ e ) { Console::WriteLine( "Exception : {0}", e->Message ); } }
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
