自定义控件（ascx）中如何使用事件

有3个方面：
1.控件内声明事件
2.控件内使用事件
2.引用的页面内
声明事件：

1. publicdelegatevoidSetTopingEventHandle(objectsender,EventArgse);
2. publicdelegatevoidSetToppedEventHandle(objectsender,EventArgse);
4. publiceventSetTopingEventHandleOnSetTopping;
5. publiceventSetToppedEventHandleOnSetTopped;

调用事件：

1. protectedvoiddlMessage_ItemCommand(objectsource,RepeaterCommandEventArgse)
2. {
3. if(e.CommandName=="btTop")//置顶
4. {
5. if(e.Item.ItemType==ListItemType.Item||e.Item.ItemType==ListItemType.AlternatingItem)
6. {
7. if(this.OnSetTopped!=null)
8. OnSetTopping(this,newEventArgs());
10. //这里是自定义代码
12. if(OnSetTopped!=null)
13. OnSetTopped(this,newEventArgs());
14. }
16. }
17. }

引发事件

1. LabaList1.SetTopping+=LabaList1_SetTopping
2. LabaList1.SetTopped+=LabaList1_SetTopped

页面的后台：

1. protectedvoidLabaList1_SetTopping(objectsender,EventArgse)
2. {
3. this.lbTop.Text="取消置顶操作";
5. }
7. protectedvoidLabaList1_SetTopped(objectsender,EventArgse)
8. {
9. this.lbTop.Text="<imgsrc=\"../imgs/myvideo/myvideo_ddd.gif\"/>置顶我的信息";
10. this.AspNetPager1.CurrentPageIndex=1;
11. this.LabaList1.DataBind();
13. }