Declare simple event

Microsoft .NET Framework, ASP.NET, Visual C# (CSharp, C Sharp, C-Sharp) Developer Training, Visual Studio

This C# code snippet declares an event with EventHandler using the default implementation for removing events and subscribing to events. We implement the IDisposable interface simply to have a reasonable excuse to throw an event.

public class MyClass : IDisposable
{
   public event EventHandler Disposing;	 
 
   public void Dispose()
   {
      // release any resources here
      if (Disposing != null)
      { 
         // someone is subscribed, throw event
         Disposing (this, new EventArgs());
      }
   }
 
   public static void Main( )
   {
      using (MyClass myClass = new MyClass ())
      {
         // subscribe to event with anonymous delegate
         myClass.Disposing += delegate 
            { Console.WriteLine ("Disposing!"); };
      }
   }
}