1.c#代码
TestObject source = new TestObject();
TestEventHandler eventListener1 = new TestEventHandler();
TestEventHandler eventListener2 = new TestEventHandler();
source.Click += eventListener1.HandleEvent; // Adding the first event handler method to the event
source.Click += eventListener2.HandleEvent; // Adding a second event handler method to the event
source.OnClick(); // First eventListener1.HandleEvent is invoked, then eventListener2.HandleEvent
2.触发事件，激发委托
When OnClick() is invoked, the event is fired.
public void OnClick()
{
if (Click != null)
{
Click(this, EventArgs.Empty); // Fire the event off to the registered handler methods
}
The IoC container
Spring Framework (Version 1.3.2) 40
}
3.spring.net xml配置
<object id="eventListener1" type="SpringdotNETEventsExample.TestEventHandler, SpringdotNETEventsExample">
<!-- wired up to an event exposed on an instance -->
<listener event="Click" method="HandleEvent">
<ref object="source"/>
</listener>
</object>
<object id="eventListener2" type="SpringdotNETEventsExample.TestEventHandler, SpringdotNETEventsExample">
<!-- wired up to an event exposed on an instance -->
<listener event="Click" method="HandleEvent">
<ref object="source"/>
</listener>
</object>
4.
Regular expressions can be employed to wire up more than one handler method to an object that contains one
or more events.
<object id="eventListener" type="SpringdotNETEventsExample.TestEventHandler, SpringdotNETEventsExample">
<listener method="Handle.+">
<ref object="source"/>
</listener>
</object>
Spring Framework (Version 1.3.2) 41
<object id="eventListener" type="SpringdotNETEventsExample.TestEventHandler, SpringdotNETEventsExample">
<!-- For the Click event, the HandleClick handler method will be invoked. -->
<listener method="Handle${event}">
<ref object="source"/>
</listener>
</object>
5.3.3.4. Registering a handler method against an event name that contains a regular
expression
Finally, you can register an object's handler methods against a selection of events, filtering based on their name
using a regular expression.
<object id="eventListener" type="SpringdotNETEventsExample.TestEventHandler, SpringdotNETEventsExample">
<listener method="HandleEvent" event="Cl.+">
<ref object="source"/>
</listener>
</object>
In this example the eventListener's HandleEvent handler method will be invoked for any event that begins with
'Cl'
