AppDomain::CreateInstanceFromAndUnwrap Method (String, String)
Creates a new instance of the specified type defined in the specified assembly file.
Assembly: mscorlib (in mscorlib.dll)
Parameters
- assemblyName
- Type: System::String
The file name and path of the assembly that defines the requested type.
- typeName
- Type: System::String
The fully qualified name of the requested type, including the namespace but not the assembly, as returned by the Type::FullName property.
| Exception | Condition |
|---|---|
| ArgumentNullException | assemblyName is nullptr. -or- typeName is nullptr. |
| 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. -or- Version 2.0 or later of the common language runtime is currently loaded and assemblyName was compiled with a later version. |
| FileLoadException | An assembly or module was loaded twice with two different evidences. |
This is a convenience method that combines CreateInstanceFrom and ObjectHandle::Unwrap. This method calls the default constructor for typeName.
For more information, see the Activator::CreateInstanceFrom method.
- FileIOPermissionAccess
for the ability to access the location of the assembly. Associated enumeration: FileIOPermissionAccess::PathDiscovery
- FileIOPermissionAccess
for the ability to read the file containing the assembly manifest. Associated enumeration: FileIOPermissionAccess::Read
- WebPermission
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.