Which field to use for saving color information

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Hi All,

I have a class

C#

public class Lane
{
      public int Number { get; set; }

      public Color Colour { get; set; }
}

Which is the model as part of a MVVM application.

I need to record the color of the lane and was wondering which class is the best to use so that the color can be displayed on the screen as both the actual color in a background to a control and the text name of the color eg Red.

Do I use color or am I better of using a brush?

How do I get the name of the color back again?

which color picker do people recommend I use. I've tried a few now and they return brushes (which makes me what to use that) instead of a color object.

Posted 14-Jun-11 7:23am

Michael Bookatz

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Sergey Alexandrovich Kryukov · Answer 1 · 2011-06-14T07:53:00

Your problem is that your property color does not change anything in graphics. Why do you think property mechanism was invented for? Mostly for side effect of the getter and event more importantly of the setter hidden behind the simple facade of assignment:

public class Lane
{
      //...
      public Color Colour {
          get { return GetColor(); }
          set { SetColor(value); } //change color of what's inside
      }
}

Now, Color vs Brush. If you need to provide the opportunity to paint something not in a single uniform color, you just have to use Brush, otherwise Color is better even if inside you use a Brush. Encapsulate and hide unwanted complexity from the outside user.

See http://en.wikipedia.org/wiki/Facade_pattern[^].

—SA