private void UserControl_Loaded(object sender, RoutedEventArgs e)
 {
     vm = this.DataContext as ManagementViewModel;
     if (vm != null)
     {
         vm.GetJuJianLstEx();
         vm.CanIterofficeReSetYingKui = true;
     }
 }
 void _interval_Elapsed(object sender, ElapsedEventArgs e)
 {
     vm.GetJuJianLstEx();
 }