partial void AddPilotButton_TouchUpInside(UIButton sender)
 {
     if (val.IsPresent(AddPilotTextField))
     {
         var alert = UIAlertController.Create("Alert!", "Do you want to add: " +
                                              AddPilotTextField.Text + " As a pilot?",
                                              UIAlertControllerStyle.Alert);
         alert.AddAction(UIAlertAction.Create("YES", UIAlertActionStyle.Default, (obj) =>
         {
             string pilot = AddPilotTextField.Text.Replace(',', '.');
             dm.AddPilot(pilot);
             ToastIOS.Toast.MakeText("Pilot Added!").Show();
             AddPilotTextField.Text = "";
             stringList             = dm.FillPilotPicker();
             pickerMaker(stringList, DeletePilotTextField);
         }));
         alert.AddAction(UIAlertAction.Create("NO", UIAlertActionStyle.Default, (obj) =>
         {
             AddPilotTextField.Text = "";
         }));
         vc.PresentViewController(alert, true, null);
     }
 }