private async void FINGER_Tapped(object sender, TappedRoutedEventArgs e) { if (Validations.CheckTextBox(tbxName, tbxAcadimicId).Equals(true)) { var dialog = new MessageDialog("Check Valuing fields"); await dialog.ShowAsync(); } else { try { await DatabaseManagement.CountAllStudentsData(newfpid); try { await BluetoothConnection.SendCommand(newfpid.Text); FingerStatusText.Text = gloablvalue.checksend(gloablvalue.RecivedText); FINGER.IsTapEnabled = false; HideFINGER.Begin(); BtN_Menu.IsTapEnabled = false; } catch (Exception) { FingerStatusText.Text = "error in sending fingerprint id !"; } } catch (Exception) { FingerStatusText.Text = "error in count student data!"; } } }