AppDomain.CreateInstanceFromAndUnwrap Method (String, String, Object)
Creates a new instance of the specified type defined in the specified assembly file.
Assembly: mscorlib (in mscorlib.dll)
public Object CreateInstanceFromAndUnwrap( string assemblyName, string typeName, Object activationAttributes )
- Type: System.String
The file name and path of the assembly that defines the requested type.
- Type: System.String
The fully qualified name of the requested type, including the namespace but not the assembly (see the Type.FullName property).
Return ValueType: System.Object
The requested object, or null if typeName is not found.
assemblyName is null.
typeName is null.
The caller cannot provide activation attributes for an object that does not inherit from MarshalByRefObject.
The operation is attempted on an unloaded application domain.
assemblyName was not found.
typeName was not found in assemblyName.
No parameterless public constructor was found.
The caller does not have sufficient permission to call this constructor.
assemblyName is not a valid assembly.
Version 2.0 or later of the common language runtime is currently loaded and assemblyName was compiled with a later version.
An assembly or module was loaded twice with two different evidences.
The activationAttributes parameter is related to client-activated objects; see Client Activation.
For more information about this method, see the Activator.CreateInstanceFrom method.
for the ability to access the location of the assembly. Associated enumeration: FileIOPermissionAccess.PathDiscovery
for the ability to read the file containing the assembly manifest. Associated enumeration: FileIOPermissionAccess.Read
for the ability to access the location of the assembly if the assembly is not local.
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.