private async void ShowFINGER_Completed(object sender, object e) { FingerStatusText.Text = gloablvalue.checksend(gloablvalue.RecivedText); gloablvalue.attendid = gloablvalue.checksend(gloablvalue.RecivedText); if (gloablvalue.attendid == "F") { FingerStatusText.Text = "Put your finger!"; } else { FingerStatusText.Text = gloablvalue.attendid; await DatabaseManagement.SearchStudentFingerPrint(studentid, Acadimicid, studentname, fingerprintid); //get fingerprint was get from fingerprint and search on student id if found return it if (studentid.Text == "NULL") { FingerStatusText.Text = "An error occured!"; } else if (studentid.Text == "Not Found") { FingerStatusText.Text = "Id = " + gloablvalue.attendid + " not stored!"; } else { await DatabaseManagement.CheckAttend(state); if (state.Text == "Not Found") { DatabaseManagement.InsertAllStudentsInLecData(gloablvalue.NewLecId, studentid.Text, Acadimicid.Text, studentname.Text, fingerprintid.Text); FingerStatusText.Text = "Done id = " + gloablvalue.attendid; } else if (state.Text == "Found") { FingerStatusText.Text = "Id = " + gloablvalue.attendid + " Attend Before"; } else { FingerStatusText.Text = "An error occured!"; } } //try //{ await BluetoothConnection.SendCommand("-"); //} //catch (Exception) //{ // var dialo2g = new MessageDialog("error in start device, click again."); // await dialo2g.ShowAsync(); //} } HideFINGER.Begin(); }