WPF ListBox(ListView) 自定义 Button 项,获取 ListBox(ListView)的SelectedValue
private void Button1_Click(object sender, RoutedEventArgs e)
{
var curItem = ((ListBoxItem)lvQueue.ContainerFromElement((Button)sender)).Content;
DataRowView drv = curItem as DataRowView;
MessageBox.Show(drv[0].ToString());
}