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ActivatorCreateInstance Method (String, String, Boolean, BindingFlags, Binder, Object, CultureInfo, Object, Evidence)
Creates an instance of the type whose name is specified, using the named assembly and the constructor that best matches the specified parameters.

Namespace: System
Assembly: mscorlib (in mscorlib.dll) Version: 4.0.0.0
Syntax
C#
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public static ObjectHandle CreateInstance(
	string assemblyName,
	string typeName,
	bool ignoreCase,
	BindingFlags bindingAttr,
	Binder binder,
	Object[] args,
	CultureInfo culture,
	Object[] activationAttributes,
	Evidence securityInfo
)

Parameters

assemblyName
Type: SystemString
The name of the assembly where the type named typeName is sought. If assemblyName is null, the executing assembly is searched.
typeName
Type: SystemString
The name of the preferred type.
ignoreCase
Type: SystemBoolean
true to specify that the search for typeName is not case-sensitive; false to specify that the search is case-sensitive.
bindingAttr
Type: System.ReflectionBindingFlags
A combination of zero or more bit flags that affect the search for the typeName constructor. If bindingAttr is zero, a case-sensitive search for public constructors is conducted.
binder
Type: System.ReflectionBinder
An object that uses bindingAttr and args to seek and identify the typeName constructor. If binder is null, the default binder is used.
args
Type: SystemObject
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 null, the constructor that takes no parameters (the default constructor) is invoked.
culture
Type: System.GlobalizationCultureInfo
Culture-specific information that governs the coercion of args to the formal types declared for the typeName constructor. If culture is null, the CultureInfo for the current thread is used.
activationAttributes
Type: SystemObject
An array of one or more attributes that can participate in activation. This is typically an array that contains a single UrlAttribute object. The UrlAttribute specifies the URL that is required to activate a remote object.
securityInfo
Type: System.Security.PolicyEvidence
Information used to make security policy decisions and grant code permissions.

Return Value

Type: ObjectHandle
A handle that must be unwrapped to access the newly created instance.
Exceptions
ExceptionCondition
ArgumentNullExceptiontypeName is null.
MissingMethodExceptionNo matching constructor was found.
TypeLoadExceptiontypename was not found in assemblyName.
FileNotFoundExceptionassemblyName was not found.
MethodAccessExceptionThe caller does not have permission to call this constructor.
MemberAccessExceptionCannot create an instance of an abstract class, or this member was invoked with a late-binding mechanism.
TargetInvocationExceptionThe constructor, which was invoked through reflection, threw an exception.
InvalidComObjectExceptionThe COM type was not obtained through GetTypeFromProgID or GetTypeFromCLSID.
NotSupportedExceptionCreation of TypedReference, ArgIterator, Void, and RuntimeArgumentHandle types, or arrays of those types, is not supported.-or- activationAttributes is not an empty array, and the type being created does not derive from MarshalByRefObject. -or-The constructor that best matches args has varargs arguments.
BadImageFormatExceptionassemblyName is not a valid assembly. -or-The common language runtime (CLR) version 2.0 or later is currently loaded, and assemblyName was compiled for a version of the CLR that is later than the currently loaded version. Note that the .NET Framework versions 2.0, 3.0, and 3.5 all use CLR version 2.0.
FileLoadExceptionAn assembly or module was loaded twice with two different evidences.
See Also