How to databind Enum value to a Boolean value?

So I have a main form with 3 controls whose Enable property I want to control using an enum.

All these controls have a reference to the Data that contains the Enum value Level.

enum Level
{
    Red,
    Yellow,
    Green
}

So if it's Red, I want the RedC开发者_运维百科ontrol to become enabled, if it's yellow, then YellowControl becomes enabled, etc.

How do I best do this with minimal code and elegance?

I tried having 3 properties like IsRed, IsYellow, etc on the Data to hook them up. But then I didn't know a way to detect the change of Level from those properties.

[Flags]
enum Level:int
{
    Red = 1,
    Green = 2,
    Blue = 4,
    Yellow = Red | Green,
    White = Red | Green | Blue
}

public class myControl : WebControl
{
 public Level color;
 ...
}

public static class extension
{
 public static bool Compare(this Level source, Level comparer)
 {
  return (source &  comparer) > 0; // will check RGB base color
  //return (source & comparer) == source; // will check for exact color
 }
}

usage

var color = Level.Red;
bool result = color.Compare(Level.Green);

myControl test = new myControl();
test.Enabled = test.Color.Compare(Level.Red);

Im not sure about databinding it... but what about putting enabling code in the property' s set?

ie

public YourClass
{
   Level _level;
   public Level level 
   {
      get{ return _level;}
      set 
      {
        _level = value;
        if(_level == Level.Green) { greenControl.Enable = true; //plus disable others }
        if(_level == Level.Yellow) { yellowControl.Enable = true; //plus disable others }
        if(_level == Level.Red) { redControl.Enable = true; //plus disable others }
      }
   }
}

that way your property works like normal (and I guess you can databind it but im not really sure) and when it gets changed the controllers will change.

RedControl.Enabled = ((value & Level.Red) != 0)

Your binding source class could implement the System.ComponentModel.INotifyPropertyChanged. I think it's a flexible way to do databinding in windows forms.

Here's one article on codeproject showing how to do it. I've haven't analysed it very deeply, though.