tests/ctags/keyword_event.cs

   1 // event_keyword.cs
   2 using System;
   3 public delegate void MyDelegate();   // delegate declaration
   4
   5 public interface I
   6 {
   7    event MyDelegate MyEvent;
   8    void FireAway();
   9 }
  10
  11 public class MyClass: I
  12 {
  13    public event MyDelegate MyEvent;
  14
  15    public void FireAway()
  16    {
  17       if (MyEvent != null)
  18          MyEvent();
  19    }
  20 }
  21
  22 public class MainClass
  23 {
  24    static private void f()
  25    {
  26       Console.WriteLine("This is called when the event fires.");
  27    }
  28
  29    static public void Main ()
  30    {
  31       I i = new MyClass();
  32
  33       i.MyEvent += new MyDelegate(f);
  34       i.FireAway();
  35    }
  36 }
  37
  38 // event_keyword2.cs
  39 using System;
  40 using System.Collections;
  41
  42 public delegate void MyDelegate1(int i);
  43 public delegate void MyDelegate2(string s);
  44 public delegate void MyDelegate3(int i, object o);
  45 public delegate void MyDelegate4();
  46
  47 public class PropertyEventsSample
  48 {
  49    private Hashtable eventTable = new Hashtable();
  50
  51    public event MyDelegate1 Event1
  52    {
  53       add
  54       {
  55          eventTable["Event1"] = (MyDelegate1)eventTable["Event1"] + value;
  56       }
  57       remove
  58       {
  59          eventTable["Event1"] = (MyDelegate1)eventTable["Event1"] - value;
  60       }
  61    }
  62
  63    public event MyDelegate1 Event2
  64    {
  65       add
  66       {
  67          eventTable["Event2"] = (MyDelegate1)eventTable["Event2"] + value;
  68       }
  69       remove
  70       {
  71          eventTable["Event2"] = (MyDelegate1)eventTable["Event2"] - value;
  72       }
  73    }
  74
  75    public event MyDelegate2 Event3
  76    {
  77       add
  78       {
  79          eventTable["Event3"] = (MyDelegate2)eventTable["Event3"] + value;
  80       }
  81       remove
  82       {
  83          eventTable["Event3"] = (MyDelegate2)eventTable["Event3"] - value;
  84       }
  85    }
  86
  87    public event MyDelegate3 Event4
  88    {
  89       add
  90       {
  91          eventTable["Event4"] = (MyDelegate3)eventTable["Event4"] + value;
  92       }
  93       remove
  94       {
  95          eventTable["Event4"] = (MyDelegate3)eventTable["Event4"] - value;
  96       }
  97    }
  98
  99    public event MyDelegate3 Event5
 100    {
 101       add
 102       {
 103          eventTable["Event5"] = (MyDelegate3)eventTable["Event5"] + value;
 104       }
 105       remove
 106       {
 107          eventTable["Event5"] = (MyDelegate3)eventTable["Event5"] - value;
 108       }
 109    }
 110
 111    public event MyDelegate4 Event6
 112    {
 113       add
 114       {
 115          eventTable["Event6"] = (MyDelegate4)eventTable["Event6"] + value;
 116       }
 117       remove
 118       {
 119          eventTable["Event6"] = (MyDelegate4)eventTable["Event6"] - value;
 120       }
 121    }
 122 }
 123
 124 public class MyClass
 125 {
 126    public static void Main()
 127    {
 128    }
 129 }
 130
 131 // event_keyword3.cs
 132 using System;
 133
 134 public delegate void MyDelegate1();
 135
 136 public interface I1
 137 {
 138    event MyDelegate1 MyEvent;
 139 }
 140
 141 public delegate int MyDelegate2(string s);
 142
 143 public interface I2
 144 {
 145    event MyDelegate2 MyEvent;
 146 }
 147
 148 public class ExplicitEventsSample: I1, I2
 149 {
 150    public event MyDelegate1 MyEvent;  // normal implementation of I1.MyEvent.
 151
 152    event MyDelegate2 I2.MyEvent   // explicit implementation of I2.MyEvent
 153    {
 154       add
 155       {
 156          MyEvent2Storage += value;
 157       }
 158       remove
 159       {
 160          MyEvent2Storage -= value;
 161       }
 162    }
 163
 164    private MyDelegate2 MyEvent2Storage;  // underlying storage for I2.MyEvent.
 165
 166    private void FireEvents()
 167    {
 168       if (MyEvent != null)
 169          MyEvent();
 170       if (MyEvent2Storage != null)
 171          MyEvent2Storage("hello");
 172    }
 173 }
 174
 175 public class MyClass
 176 {
 177    public static void Main()
 178    {
 179    }
 180 }