请大家看看这道面试题，特简单 ，但我不会

[symbol_bc]

namespace test
{
public delegate coid OnDBOperate();
public class UserControlBase : Sysstem.Windows.Forms.UserControl
{
public event OnDBOperate OnNew;
private void toolBar_ButtonClick(object sender, System.Windows.Forms.ToolBarButtonClickEventArgs e)
{
if(e.Button.Equals(btnNew))
{
//请在以下补齐代码用来调用OnDBOperate委托签名的OnNew事件
}
}
}
}

[Wang_ShaoBaoLing]

namespace test
{
public delegate coid OnDBOperate();
public class UserControlBase : Sysstem.Windows.Forms.UserControl
{
public event OnDBOperate OnNew;
private void toolBar_ButtonClick(object sender, System.Windows.Forms.ToolBarButtonClickEventArgs e)
{
if (e.Button.Equals(btnNew))
{
//请在以下补齐代码用来调用OnDBOperate委托签名的OnNew事件
OnNew += new OnDBOperate(UserControlBase_OnNew);
}
}

coid UserControlBase_OnNew()
{
//在此方法中写你事件的处理逻辑
throw new NotImplementedException();
}
}
}

[fuadam]

if(OnNew != null)
OnNew();

[cjnet]

this.OnNew += new OnDBOperate(Do_OnNew);

[贫僧又回来了]

[Quote=引用 3 楼 cjnet 的回复:]
this.OnNew += new OnDBOperate(Do_OnNew);
[/Quote]

[Neil198]

MARK