System.Configuration.ConfigurationPermission.Intersect C# (CSharp) Метод

        public override IPermission Intersect(IPermission target) {
            if (target == null) {
                return null;
            }

            if (target.GetType() !=  typeof(ConfigurationPermission)) {
                throw ExceptionUtil.ParameterInvalid("target");
            }

            // Create an None permission if either this or other is None
            if (_permissionState == PermissionState.None) {
                return new ConfigurationPermission(PermissionState.None);
            }
            else {
                ConfigurationPermission other = (ConfigurationPermission) target;
                return new ConfigurationPermission(other._permissionState);
            }
        }

		public void Intersect_null ()
		{
			ConfigurationPermission p1 = new ConfigurationPermission (PermissionState.Unrestricted);

			IPermission p3 = p1.Intersect (null);

			Assert.IsNull (p3, "A1");
		}