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AppDomain.CreateInstanceFrom Method (String, String, Boolean, BindingFlags, Binder, Object[], CultureInfo, Object[], Evidence)

.NET Framework 1.1

Creates a new instance of the specified type defined in the specified assembly file.

[Visual Basic]
Overloads Public Overridable Function CreateInstanceFrom( _
   ByVal assemblyFile As String, _
   ByVal typeName As String, _
   ByVal ignoreCase As Boolean, _
   ByVal bindingAttr As BindingFlags, _
   ByVal binder As Binder, _
   ByVal args() As Object, _
   ByVal culture As CultureInfo, _
   ByVal activationAttributes() As Object, _
   ByVal securityAttributes As Evidence _
) As ObjectHandle Implements _AppDomain.CreateInstanceFrom
public virtual ObjectHandle CreateInstanceFrom(
 string assemblyFile,
 string typeName,
 bool ignoreCase,
 BindingFlags bindingAttr,
 Binder binder,
 object[] args,
 CultureInfo culture,
 object[] activationAttributes,
 Evidence securityAttributes
public: virtual ObjectHandle* CreateInstanceFrom(
 String* assemblyFile,
 String* typeName,
 bool ignoreCase,
 BindingFlags bindingAttr,
 Binder* binder,
 Object* args __gc[],
 CultureInfo* culture,
 Object* activationAttributes __gc[],
 Evidence* securityAttributes
public function CreateInstanceFrom(
   assemblyFile : String,
 typeName : String,
 ignoreCase : Boolean,
 bindingAttr : BindingFlags,
 binder : Binder,
 args : Object[],
 culture : CultureInfo,
 activationAttributes : Object[],
 securityAttributes : Evidence
) : ObjectHandle;


The name of a file that contains an assembly that defines the requested type.
The fully-qualified name of the requested type.
A Boolean value specifying whether to perform a case-sensitive search or not.
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.
An object that enables the binding, coercion of argument types, invocation of members, and retrieval of MemberInfo objects through reflection. If binder is null, the default binder is used.
The arguments to pass to the constructor. This array of arguments must match in number, order, and type the parameters of the constructor to invoke. If the default constructor is preferred, args must be an empty array or null.
Culture-specific information that governs the coercion of args to the formal types declared for the typeName constructor. If culture is a null reference (Nothing in Visual Basic), the CultureInfo for the current thread is used.
One or more attributes that can participate in activation.
Information used to authorize creation of typeName.

Return Value

An object that is a wrapper for the new instance, or a null reference (Nothing in Visual Basic) if typeName is not found. The return value needs to be unwrapped to access the real object.




Exception Type Condition
ArgumentNullException assemblyFile is a null reference (Nothing in Visual Basic).


typeName is a null reference (Nothing).

NotSupportedException The caller cannot provide activation attributes for an object that does not inherit from MarshalByRefObject.
SecurityException The caller does not have the correct permissions. See the requirements section.
AppDomainUnloadedException Operations are attempted on an unloaded application domain.


For more information, see the Activator.CreateInstanceFrom method.


Platforms: Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family

.NET Framework Security: 

See Also

AppDomain Class | AppDomain Members | System Namespace | AppDomain.CreateInstanceFrom Overload List | Activator.CreateInstanceFrom