我正在尝试修复web应用程序中的一个错误,该应用程序动态创建带有事件的按钮。我正在处理这个man函数,它是从for循环内部调用的。根据我所做的研究,这种分配活动的方式应该有效,但实际上不行。事实上,由于某种原因,点击按钮就会消失。我是不是把动态事件分配错了,还是会有其他完全错误的事情发生?“drivers”变量是按钮在其内部创建的面板。
public void generateDriver(string name, string route, string id)
{
Debug.WriteLine("A driver has been created!");
Literal driverLit = new Literal();
driverLit.Text += "<div class='routeTitle'>";
driverLit.Text += "<input type='text' id='hiddenID' text='" + id + "' hidden />";
driverLit.Text += name + "<br>";
driverLit.Text += route + "<br>";
Button newButton = new Button();
newButton.Text = "Remove";
newButton.ID = id;
newButton.Click += new EventHandler(RemoveDriver);
newButton.CssClass = "btn btn-danger";
drivers.Controls.Add(driverLit);
drivers.Controls.Add(newButton);
drivers.Controls.Add(new Literal
{
Text = "</div>"
});
}
public void RemoveDriver(object sender, EventArgs e)
{
Debug.WriteLine("An event has been triggered!");
Button removeBtn = (Button)sender;
string id = removeBtn.ID;
string querystring = Request.QueryString["id"].ToString();
List<string> routes = querystring.Split('-').ToList();
routes.Remove(id);
string newQueryString = string.Join("-", routes);
Response.Redirect("/Orders.aspx?id=" + newQueryString);
}
谢谢你的帮助。