在Page_Load,Init和其他页面事件的情况下,这些(object sender, EventArgs e)参数的用途是什么?
In case of Page_Load, Init and other page events, what is the use of these (object sender, EventArgs e) parameters?
示例会更有用.
推荐答案EventArgs e是一个名为e的参数,其中包含事件数据,有关更多信息,请参见EventArgs MSDN页面.
EventArgs e is a parameter called e that contains the event data, see the EventArgs MSDN page for more information.
Object Sender是一个名为Sender的参数,其中包含对引发事件的控件/对象的引用.
Object Sender is a parameter called Sender that contains a reference to the control/object that raised the event.
事件Arg类: msdn.microsoft/zh-CN/library/system.eventargs.aspx
示例:
protected void btn_Click (object sender, EventArgs e){ Button btn = sender as Button; btn.Text = "clicked!"; }单击Button后,将触发btn_Click事件处理程序. 对象发送者"部分将是对单击的按钮的引用
When Button is clicked, the btn_Click event handler will be fired. The "object sender" portion will be a reference to the button which was clicked
更多推荐
“对象发送者"的用途是什么?和"EventArgs e"参数?
发布评论