AppDomain.CreateInstanceFromAndUnwrap Method

Reference

Definition

Namespace:: System

Assembly:: System.Runtime.dll

Assembly:: System.Runtime.Extensions.dll

Assembly:: mscorlib.dll

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

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

Overloads

CreateInstanceFromAndUnwrap(String, String)	Creates a new instance of the specified type defined in the specified assembly file.
CreateInstanceFromAndUnwrap(String, String, Object[])	Creates a new instance of the specified type defined in the specified assembly file.
CreateInstanceFromAndUnwrap(String, String, Boolean, BindingFlags, Binder, Object[], CultureInfo, Object[])	Creates a new instance of the specified type defined in the specified assembly file, specifying whether the case of the type name is ignored; the binding attributes and the binder that are used to select the type to be created; the arguments of the constructor; the culture; and the activation attributes.
CreateInstanceFromAndUnwrap(String, String, Boolean, BindingFlags, Binder, Object[], CultureInfo, Object[], Evidence)	Obsolete. Creates a new instance of the specified type defined in the specified assembly file.

CreateInstanceFromAndUnwrap(String, String)

Source:: AppDomain.cs

Source:: AppDomain.cs

Source:: AppDomain.cs

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

public:
 System::Object ^ CreateInstanceFromAndUnwrap(System::String ^ assemblyFile, System::String ^ typeName);

public:
 System::Object ^ CreateInstanceFromAndUnwrap(System::String ^ assemblyName, System::String ^ typeName);

public object? CreateInstanceFromAndUnwrap (string assemblyFile, string typeName);

public object CreateInstanceFromAndUnwrap (string assemblyName, string typeName);

member this.CreateInstanceFromAndUnwrap : string * string -> obj

member this.CreateInstanceFromAndUnwrap : string * string -> obj

Public Function CreateInstanceFromAndUnwrap (assemblyFile As String, typeName As String) As Object

Public Function CreateInstanceFromAndUnwrap (assemblyName As String, typeName As String) As Object

Parameters

assemblyFileassemblyName: String

typeName: String

The fully qualified name of the requested type, including the namespace but not the assembly, as returned by the FullName property.

Returns

Object

The requested object, or null if typeName is not found.

Exceptions

ArgumentNullException

assemblyName is null.

-or-

typeName is null.

AppDomainUnloadedException

The operation is attempted on an unloaded application domain.

FileNotFoundException

assemblyName was not found.

TypeLoadException

typeName was not found in assemblyName.

MissingMethodException

No parameterless public constructor was found.

MethodAccessException

The caller does not have sufficient permission to call this constructor.

BadImageFormatException

assemblyName is not a valid assembly for the currently loaded runtime.

FileLoadException

An assembly or module was loaded twice with two different evidences.

Remarks

This is a convenience method that combines CreateInstanceFrom and ObjectHandle.Unwrap. This method calls the parameterless constructor for typeName.

For more information, see the Activator.CreateInstanceFrom method.

Applies to

CreateInstanceFromAndUnwrap(String, String, Object[])

Source:: AppDomain.cs

Source:: AppDomain.cs

Source:: AppDomain.cs

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

public:
 System::Object ^ CreateInstanceFromAndUnwrap(System::String ^ assemblyFile, System::String ^ typeName, cli::array <System::Object ^> ^ activationAttributes);

public:
 System::Object ^ CreateInstanceFromAndUnwrap(System::String ^ assemblyName, System::String ^ typeName, cli::array <System::Object ^> ^ activationAttributes);

public object? CreateInstanceFromAndUnwrap (string assemblyFile, string typeName, object?[]? activationAttributes);

public object CreateInstanceFromAndUnwrap (string assemblyName, string typeName, object[] activationAttributes);

member this.CreateInstanceFromAndUnwrap : string * string * obj[] -> obj

member this.CreateInstanceFromAndUnwrap : string * string * obj[] -> obj

Public Function CreateInstanceFromAndUnwrap (assemblyFile As String, typeName As String, activationAttributes As Object()) As Object

Public Function CreateInstanceFromAndUnwrap (assemblyName As String, typeName As String, activationAttributes As Object()) As Object

Parameters

assemblyFileassemblyName: String

typeName: String

The fully qualified name of the requested type, including the namespace but not the assembly (see the FullName property).

activationAttributes: Object[]

An array of one or more attributes that can participate in activation. Typically, an array that contains a single UrlAttribute object that specifies the URL that is required to activate a remote object.

This parameter is related to client-activated objects.Client activation is a legacy technology that is retained for backward compatibility but is not recommended for new development. Distributed applications should instead use Windows Communication Foundation.

Returns

Object

The requested object, or null if typeName is not found.

Exceptions

ArgumentNullException

assemblyName is null.

-or-

typeName is null.

NotSupportedException

The caller cannot provide activation attributes for an object that does not inherit from MarshalByRefObject.

AppDomainUnloadedException

The operation is attempted on an unloaded application domain.

FileNotFoundException

assemblyName was not found.

TypeLoadException

typeName was not found in assemblyName.

MissingMethodException

No parameterless public constructor was found.

MethodAccessException

The caller does not have sufficient permission to call this constructor.

BadImageFormatException

assemblyName is not a valid assembly for the currently loaded runtime.

FileLoadException

An assembly or module was loaded twice with two different evidences.

Remarks

This is a convenience method that combines CreateInstanceFrom and ObjectHandle.Unwrap. This method calls the parameterless constructor for typeName.

For more information about this method, see the Activator.CreateInstanceFrom method.

Applies to

CreateInstanceFromAndUnwrap(String, String, Boolean, BindingFlags, Binder, Object[], CultureInfo, Object[])

Source:: AppDomain.cs

Source:: AppDomain.cs

Source:: AppDomain.cs

Creates a new instance of the specified type defined in the specified assembly file, specifying whether the case of the type name is ignored; the binding attributes and the binder that are used to select the type to be created; the arguments of the constructor; the culture; and the activation attributes.

public:
 System::Object ^ CreateInstanceFromAndUnwrap(System::String ^ assemblyFile, System::String ^ typeName, bool ignoreCase, System::Reflection::BindingFlags bindingAttr, System::Reflection::Binder ^ binder, cli::array <System::Object ^> ^ args, System::Globalization::CultureInfo ^ culture, cli::array <System::Object ^> ^ activationAttributes);

public object? CreateInstanceFromAndUnwrap (string assemblyFile, string typeName, bool ignoreCase, System.Reflection.BindingFlags bindingAttr, System.Reflection.Binder? binder, object?[]? args, System.Globalization.CultureInfo? culture, object?[]? activationAttributes);

public object CreateInstanceFromAndUnwrap (string assemblyFile, string typeName, bool ignoreCase, System.Reflection.BindingFlags bindingAttr, System.Reflection.Binder binder, object[] args, System.Globalization.CultureInfo culture, object[] activationAttributes);

member this.CreateInstanceFromAndUnwrap : string * string * bool * System.Reflection.BindingFlags * System.Reflection.Binder * obj[] * System.Globalization.CultureInfo * obj[] -> obj

Public Function CreateInstanceFromAndUnwrap (assemblyFile As String, typeName As String, ignoreCase As Boolean, bindingAttr As BindingFlags, binder As Binder, args As Object(), culture As CultureInfo, activationAttributes As Object()) As Object

Parameters

assemblyFile: String

The file name and path of the assembly that defines the requested type.

typeName: String

The fully qualified name of the requested type, including the namespace but not the assembly, as returned by the FullName property.

ignoreCase: Boolean

A Boolean value specifying whether to perform a case-sensitive search or not.

bindingAttr: BindingFlags

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: Binder

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.

args: Object[]

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 parameterless constructor is preferred, args must be an empty array or null.

culture: CultureInfo

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: Object[]

This parameter is related to client-activated objects. Client activation is a legacy technology that is retained for backward compatibility but is not recommended for new development. Distributed applications should instead use Windows Communication Foundation.

Returns

Object

The requested object, or null if typeName is not found.

Exceptions

ArgumentNullException

assemblyFile is null.

-or-

typeName is null.

NotSupportedException

The caller cannot provide activation attributes for an object that does not inherit from MarshalByRefObject.

AppDomainUnloadedException

The operation is attempted on an unloaded application domain.

FileNotFoundException

assemblyFile was not found.

TypeLoadException

typeName was not found in assemblyFile.

MissingMethodException

No matching public constructor was found.

MethodAccessException

The caller does not have sufficient permission to call this constructor.

BadImageFormatException

assemblyFile is not a valid assembly.

-or-

assemblyFile was compiled with a later version of the common language runtime that the version that is currently loaded.

FileLoadException

An assembly or module was loaded twice with two different evidences.

Remarks

This is a convenience method that combines CreateInstanceFrom and ObjectHandle.Unwrap.

For more information about this method, see the Activator.CreateInstanceFrom method.

Applies to

CreateInstanceFromAndUnwrap(String, String, Boolean, BindingFlags, Binder, Object[], CultureInfo, Object[], Evidence)

Caution

Methods which use evidence to sandbox are obsolete and will be removed in a future release of the .NET Framework. Please use an overload of CreateInstanceFromAndUnwrap which does not take an Evidence parameter. See http://go.microsoft.com/fwlink/?LinkID=155570 for more information.

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

public:
 System::Object ^ CreateInstanceFromAndUnwrap(System::String ^ assemblyName, System::String ^ typeName, bool ignoreCase, System::Reflection::BindingFlags bindingAttr, System::Reflection::Binder ^ binder, cli::array <System::Object ^> ^ args, System::Globalization::CultureInfo ^ culture, cli::array <System::Object ^> ^ activationAttributes, System::Security::Policy::Evidence ^ securityAttributes);

public object CreateInstanceFromAndUnwrap (string assemblyName, string typeName, bool ignoreCase, System.Reflection.BindingFlags bindingAttr, System.Reflection.Binder binder, object[] args, System.Globalization.CultureInfo culture, object[] activationAttributes, System.Security.Policy.Evidence securityAttributes);

[System.Obsolete("Methods which use evidence to sandbox are obsolete and will be removed in a future release of the .NET Framework. Please use an overload of CreateInstanceFromAndUnwrap which does not take an Evidence parameter. See http://go.microsoft.com/fwlink/?LinkID=155570 for more information.")]
public object CreateInstanceFromAndUnwrap (string assemblyName, string typeName, bool ignoreCase, System.Reflection.BindingFlags bindingAttr, System.Reflection.Binder binder, object[] args, System.Globalization.CultureInfo culture, object[] activationAttributes, System.Security.Policy.Evidence securityAttributes);

member this.CreateInstanceFromAndUnwrap : string * string * bool * System.Reflection.BindingFlags * System.Reflection.Binder * obj[] * System.Globalization.CultureInfo * obj[] * System.Security.Policy.Evidence -> obj

[<System.Obsolete("Methods which use evidence to sandbox are obsolete and will be removed in a future release of the .NET Framework. Please use an overload of CreateInstanceFromAndUnwrap which does not take an Evidence parameter. See http://go.microsoft.com/fwlink/?LinkID=155570 for more information.")>]
member this.CreateInstanceFromAndUnwrap : string * string * bool * System.Reflection.BindingFlags * System.Reflection.Binder * obj[] * System.Globalization.CultureInfo * obj[] * System.Security.Policy.Evidence -> obj

Public Function CreateInstanceFromAndUnwrap (assemblyName As String, typeName As String, ignoreCase As Boolean, bindingAttr As BindingFlags, binder As Binder, args As Object(), culture As CultureInfo, activationAttributes As Object(), securityAttributes As Evidence) As Object

Parameters

assemblyName: String

The file name and path of the assembly that defines the requested type.

typeName: String

The fully qualified name of the requested type, including the namespace but not the assembly, as returned by the FullName property.

ignoreCase: Boolean

A Boolean value specifying whether to perform a case-sensitive search or not.

bindingAttr: BindingFlags

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: Binder

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.

args: Object[]

culture: CultureInfo

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: Object[]

This parameter is related to client-activated objects. Client activation is a legacy technology that is retained for backward compatibility but is not recommended for new development. Distributed applications should instead use Windows Communication Foundation.