C# 在运行时绑定事件时将附加参数传递给事件处理程序
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C# pass additional parameter to an event handler while binding the event at the run time
提问by foo-baar
I have a link button which have a regular click event :
我有一个链接按钮，它有一个常规的点击事件：
protected void lnkSynEvent_Click(object sender, EventArgs e)
{
}
And I bind this event at the runtime :
我在运行时绑定这个事件：
lnkSynEvent.Click += new EventHandler(lnkSynEvent_Click);
Now I need the function to accept additional argument:
现在我需要函数来接受额外的参数：
protected void lnkSynEvent_Click(object sender, EventArgs e, DataTable dataT)
{
}
And pass the same as parameter while binding this event :
并在绑定此事件时传递与参数相同的参数：
lnkSynEvent.Click += new EventHandler(lnkSynEvent_Click, //somehow here);
Not sure how to achieve this. Please help.
不知道如何实现这一点。请帮忙。
Thanks in advance.
提前致谢。
Vishal
维沙尔
采纳答案by alex
You can use anonymous delegate for that:
您可以为此使用匿名委托：
lnkSynEvent.Click +=
new EventHandler((s,e)=>lnkSynEvent_Click(s, e, your_parameter));
回答by nivethitha
by use of delegate:
通过使用委托：
lnkbtnDel.Click += delegate(object s, EventArgs e1) {
Dynamic_Click(s, e1, lnkbtnDel.ID);
};`
回答by ErazerBrecht
I don't know exactly when it's changed, but now it's even easier!
我不知道它什么时候改变，但现在更容易了！
lnkSynEvent.Click += (s,e) => lnkSynEvent_Click(s, e, your_parameter);
回答by CarLoOSX
EventHandler myEvent = (sender, e) => MyMethod(myParameter);//my delegate
myButton.Click += myEvent;//suscribe
myButton.Click -= myEvent;//unsuscribe
private void MyMethod(MyParameterType myParameter)
{
//Do something
}
