partial void DeletePlaneButton_TouchUpInside(UIButton sender)
 {
     if (val.IsPresent(DeletePlaneTextField))
     {
         var alert = UIAlertController.Create("Alert!", "Do you want to delete: " +
                                              DeletePlaneTextField.Text,
                                              UIAlertControllerStyle.Alert);
         alert.AddAction(UIAlertAction.Create("YES", UIAlertActionStyle.Destructive, (obj) =>
         {
             dm.DeletePlane(DeletePlaneTextField.Text);
             ToastIOS.Toast.MakeText("Plane Deleted!").Show();
             DeletePlaneTextField.Text = "";
             stringList = dm.FillPlanePicker();
             pickerMaker(stringList, DeletePlaneTextField);
         }));
         alert.AddAction(UIAlertAction.Create("NO", UIAlertActionStyle.Default, (obj) =>
         {
             DeletePlaneTextField.Text = "";
         }));
         vc.PresentViewController(alert, true, null);
     }
 }