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  1. using System;
  2. using System.Collections.Generic;
  3.  
  4. public class Program
  5. {
  6. 	public static void Main()
  7. 	{
  8. 		var a = new A();
  9. 		a.Controls.Add(new B());
  10. 		a.Controls.Add(new C());
  11. 		a.Controls.Add(new D());
  12. 		a.DisplayMode = DisplayMode.Edit;
  13. 	}
  14. }
  15.  
  16. public enum DisplayMode { View = 0, Edit = 1 }
  17.  
  18. public interface IMode
  19. {
  20.     DisplayMode DisplayMode { get; set; }
  21. }
  22.  
  23. public class A
  24. {
  25.     private DisplayMode mDisplayMode;
  26.     public A()
  27.     {
  28.         mDisplayMode = DisplayMode.View;
  29.         Controls = new List<object>();
  30.     }
  31.     public DisplayMode DisplayMode
  32.     {
  33.         get
  34.         {
  35.             return mDisplayMode;
  36.         }
  37.         set
  38.         {
  39.             if (mDisplayMode != value)
  40.             {
  41.                 mDisplayMode = value;
  42.                 foreach (var control in Controls)
  43.                     if (control is IMode)
  44.                         (control as IMode).DisplayMode = value;
  45.                 // the control ( b ).DisplayMode is not firing or executing the set
  46.                 // what i am missing here?
  47.             }
  48.         }
  49.     }
  50.     public List<object> Controls { get; set; }
  51. }
  52.  
  53. public class B : IMode
  54. {
  55.     private DisplayMode mDisplayMode;
  56.     public DisplayMode DisplayMode
  57.     {
  58.         get
  59.         {
  60.             return mDisplayMode;
  61.         }
  62.         set
  63.         {
  64.             if (mDisplayMode != value)
  65.             {
  66.                 mDisplayMode = value;
  67.                 Console.WriteLine("Changing the display mode!");
  68.             }
  69.         }
  70.     }
  71. }
  72.  
  73. public class C
  74. {
  75.  
  76. }
  77.  
  78. public class D
  79. {
  80.  
  81. }
Success #stdin #stdout 0.02s 33856KB
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Changing the display mode!
https://ideone.com/TAYBLX
language:
C# (gmcs 5.20.1)
created:
9 years ago
visibility:
public

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