Enum.IsDefined

Enum.IsDefined.cs

            public KeyboardLayoutType LayoutType
            {
              get
              {
                return this.layoutType;
              }
              set
              {
                if (!Enum.IsDefined(typeof (KeyboardLayoutType), (object) value))
                  throw new ArgumentException("Invalid LayoutType. When setting the LayoutType property, it must be a valid member of the KeyboardLayoutType enumeration!");
                this.MainLayoutPanel = this.GetLayoutPanelByLayoutType(value);
                this.layoutType = value;
              }
            }