protected override void OnClick()
{
base.OnClick();
ReportTimeEventArgs args = new ReportTimeEventArgs(ReportTimeEvent, this);
args.ClickTime = DateTime.Now;
this.RaiseEvent(args);
}
private void ReportTimeHandler(object sender, ReportTimeEventArgs e)
{
FrameworkElement ele = sender as FrameworkElement;
string timeStr = e.ClickTime.ToLongTimeString();
string content = $"{timeStr} arrives {ele.Name}";
this.listbox.Items.Add(content);
if (ele == this.grid3)
{
e.Handled = true;
}
}