如何事件处理程序添加到动态控制在asp.net中做回发？除了使用Javascript，这可能吗？ [英] How to add event handlers to dynamic control in asp.net to do postback? Other than using Javascript, is it possible?

问题描述

如何添加事件处理程序来动态控制（按钮）在asp.net中做回发？除了使用Javascript，这可能吗？

How to add event handlers to dynamic control( a button) in asp.net to do postback? Other than using Javascript, is it possible?

推荐答案

是的，这是可能的。

因此​​，举例来说，在你的的Page_Load 你可以创建按钮。

So, for example, in your Page_Load you can create the button.

此示例是使用VB

这对回传重新创建，所以不要把它包在如果（没有的IsPostBack） - 否则将无法正常工作

This has to be recreated on postback, so DO NOT wrap it in an If (Not isPostBack) - otherwise it will not work

Dim btn As Button = New Button() With {.Text = "Click Me", .ID = "MyId"}
AddHandler btn.Click, AddressOf MyBtnClick ' This is the method to call

然后处理click这里：

and then you handle the click in here:

Private Sub MyBtnClick(ByVal sender As Object, ByVal e As EventArgs)
    Dim btn As Button = CType(sender, Button) ' Gets the button that fired the method
    ' Do your code here
End Sub

这是在C＃

Button btn = new Button {Text = "Click Me",ID = "MyId"};
btn.Click += new EventHanlder(MyBtnClick);

和被调用方法

private void MyBtnClick(object sender, EventArgs e)
{
    Button btn = (Button)sender; // Gets the button that fired the method
    // Do your code here
}

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