/// <summary> /// Saves Fingerprint template to UsersToEnroll file /// </summary> /// <param name="temp">The fingerprint template to save</param> /// <returns></returns> private bool SaveFingerprint(byte[] temp) { // Getting the finger whose template is to be saved if (_activeUser?.Fingers?.FirstOrDefault(a => a.Finger.IndexNumber == _activeFinger.Finger.IndexNumber) != null) { #region Save template to UsersToEnrol file in program memory // Variable to hold User currently being enrolled var user = EnrollmentOperations.GetUsersToEnrol().Users .FirstOrDefault(x => x.User.Id == _activeUser.User.Id); // The User's particular finger which is being enrolled var finger = user?.Fingers.FirstOrDefault(p => p.Finger.IndexNumber == _activeFinger.Finger.IndexNumber); if (finger != null) { // Assign gotten template to User's active finger finger.Template = temp; } #endregion #region Save template to UsersToEnrol file in a path in User's PC // Convert UsersToEnrol to JSON string var jsonString = EnrollmentOperations.GetUsersToEnrol().ConvertToJson(); // The path in user's PC to save UsersToEnrol JSON file string path = FileInformation.GetLoggedInUserFileDirectory() + @"\UsersToEnrol.json"; string errMsg; // Saving UsersToEnrol JSON file to the specified path FileInformation fileInfo = new FileInformation(); if (fileInfo.WriteFile(path, jsonString, out errMsg)) { MessageBox.Show("Fingerprint template saved succesfully!"); return(true); } else { MessageBox.Show("Failed to save fingerprint template"); return(false); } #endregion } return(false); }