Question

C#动态添加CheckBox 及其事件时，无法响应事件..

protected void Page_Load(object sender, EventArgs e){
if (!IsPostBack){
CheckBox chk = new CheckBox();
chk.CheckedChanged += new EventHandler(chk_CheckedChanged);
chk.AutoPostBack = true;
chk.ID = “topid”;
chk.Text = “toptitle”;
｝
}
void chk_CheckedChanged(object sender, EventArgs e)

{
CheckBox cb = (CheckBox)sender;
}
}

Answer 1

你这事件里什么都没执行，就定义个别名cb，哪来响应？ 在CheckBox cb = (CheckBox)sender;加上个断点，你就知道有没被调用了