Activator.CreateComInstanceFrom Method (String, String)
Assembly: mscorlib (in mscorlib.dll)
public static ObjectHandle CreateComInstanceFrom ( string assemblyName, string typeName )
public static function CreateComInstanceFrom ( assemblyName : String, typeName : String ) : ObjectHandle
The name of a file that contains an assembly where the type named typeName is sought.
The name of the preferred type.
Return ValueA handle that must be unwrapped to access the newly created instance.
typeName is a null reference (Nothing in Visual Basic).
An instance cannot be created through COM.
typename was not found in assemblyName.
No matching constructor was found.
assemblyName is not found, or the module you are trying to load does not specify a file name extension.
Cannot create an instance of an abstract class or this member was invoked with a late-binding mechanism.
The caller cannot provide activation attributes for an object that does not inherit from MarshalByRefObject.
assemblyName is the empty string ("").
Use the ObjectHandle.Unwrap method to unwrap the return value.
A System.Runtime.InteropServices.ComVisibleAttribute attribute with a value of true must be applied either explicitly or by default to the COM type so the CreateComInstanceFrom method can create an instance of that type; otherwise, TypeLoadException is thrown.
- ReflectionPermission for the ability to invoke operations on all type members. Associated enumeration: MemberAccess
Windows 98, Windows 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.