Activator.CreateInstance Method (Type, Boolean)
Creates an instance of the specified type using that type's default constructor.
Assembly: mscorlib (in mscorlib.dll)
- Type: System.Type
The type of object to create.
- Type: System.Boolean
true if a public or nonpublic default constructor can match; false if only a public default constructor can match.
Return ValueType: System.Object
A reference to the newly created object.
type is null.
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 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.
Starting with the .NET Framework version 2.0 Service Pack 1, this method can be used to access nonpublic types and members if the caller has been granted ReflectionPermission with the ReflectionPermissionFlag.RestrictedMemberAccess flag and if the grant set of the assembly that contains the nonpublic types and members 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 .NET Framework version 3.5. For more information, see .NET Framework 3.5 Architecture.
for the ability to call unmanaged code when creating an instance of a delegate. Associated enumeration: SecurityPermissionFlag.UnmanagedCode
for accessing nonpublic types and members when the grant set of the nonpublic types and members is restricted to the caller's grant set, or to a subset thereof. Associated enumeration: ReflectionPermissionFlag.RestrictedMemberAccess
for accessing nonpublic types and members regardless of their grant set. Associated enumeration: ReflectionPermissionFlag.MemberAccess
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
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.