Determines whether an instance of the current Type can be assigned from an instance of the specified Type.
Assembly: mscorlib (in mscorlib.dll)
abstract IsAssignableFrom : c:Type -> bool override IsAssignableFrom : c:Type -> bool
- Type: System.Type
The type to compare with the current type.
Return ValueType: System.Boolean
true if c and the current Type represent the same type, or if the current Type is in the inheritance hierarchy of c, or if the current Type is an interface that c implements, or if c is a generic type parameter and the current Type represents one of the constraints of c, or if c represents a value type and the current Type represents Nullable<c> (Nullable(Of c) in Visual Basic). false if none of these conditions are true, or if c is a null reference (Nothing in Visual Basic).
This method can be overridden by a derived class.
A generic type definition is not assignable from a closed constructed type. That is, you cannot assign the closed constructed type MyGenericList<int> (MyGenericList(Of Integer) in Visual Basic) to a variable of type MyGenericList<T>.
You can determine the element types of a Type using GetElementType.
If the c parameter is of type TypeBuilder, the result is based on the type that is to be built. The following code example demonstrates this using a built type named B.
TypeBuilder b1 = moduleBuilder.DefineType("B", TypeAttributes.Public, typeof(A)); // Returns true: typeof(A).IsAssignableFrom(b1))
Windows Phone 8.1, Windows Phone 8, Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.