Activator.CreateInstance Method (Type, Object)
Assembly: mscorlib (in mscorlib.dll)
The type of object to create.
An array of arguments that match in number, order, and type the parameters of the constructor to invoke. If args is an empty array or a null reference (Nothing in Visual Basic), the constructor that takes no parameters (the default constructor) is invoked.
Return ValueA reference to the newly created object.
type is a null reference (Nothing in Visual Basic).
type is not a RuntimeType.
type is an open generic type (that is, the ContainsGenericParameters property returns true).
type cannot be a TypeBuilder.
The constructor that best matches args has varargs arguments.
The constructor being called throws an exception.
The caller does not have permission to call this constructor.
Cannot create an instance of an abstract class, or this member was invoked with a late-binding mechanism.
No matching public constructor was found.
type is a COM object but the class identifier used to obtain the type is invalid, or the identified class is not registered.
type is not a valid type.
The constructor to be invoked must be accessible and must provide the most specific match with the specified argument list.
Starting with the , this method can be used to access nonpublic types if the caller has been granted ReflectionPermission with the ReflectionPermissionFlag.ReflectionEmit flag and if the grant set of the assembly that contains the nonpublic types is restricted to the caller’s grant set, or to a subset thereof. (See Security Considerations for Reflection.)
To use this functionality, your application should target the . For more information, see The .NET Framework 3.5 Architecture.
- SecurityPermission for the ability to call unmanaged code when creating an instance of a delegate. Associated enumeration: SecurityPermissionFlag.UnmanagedCode
- ReflectionPermission for accessing a nonpublic type when the grant set of the nonpublic type is restricted to the caller's grant set, or to a subset thereof. Associated enumeration: System.Security.Permissions.ReflectionPermissionFlag.RestrictedMemberAccess
- ReflectionPermission for accessing nonpublic types regardless of their grant set. Associated enumeration: ReflectionPermissionFlag.MemberAccess
Windows 98, Windows Server 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter EditionThe Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.