System.ComponentModel.TypeDescriptor.GetNodeForBaseType C# (CSharp) Method

        private static Type GetNodeForBaseType(Type searchType)
        {
            var typeInfo = searchType.GetTypeInfo();
            if (typeInfo.IsInterface)
            {
                return InterfaceType;
            }
            else if (searchType == InterfaceType)
            {
                return null;
            }
            return typeInfo.BaseType;
        }