public string[] GetPresetPositionList()
 {
     // load the existed preset
     using (SqliteDb db = new SqliteDb())
     {
         return(db.GetPresetPositionNames(MotionComponent.GetHashCode()));
     }
 }
 public override int GetHashCode()
 {
     return(MotionComponent.GetHashCode());
 }
        public void SavePresetPosition(string Name)
        {
            try
            {
                PresetPosition pos = new PresetPosition()
                {
                    Name = Name,
                    MotionComponentHashCode = MotionComponent.GetHashCode(),
                    Items = new PresetPositionItem[AxisControlCollection.Count]
                };
                for (int i = 0; i < AxisControlCollection.Count; i++)
                {
                    pos.Items[i] = AxisControlCollection[i].PresetAggregation;
                }

                using (SqliteDb db = new SqliteDb())
                {
                    // check if the preset exists
                    if (db.ReadPresetPosition(pos.MotionComponentHashCode, Name, out PresetPosition preset))
                    {
                        if (preset == null)
                        {
                            // save the preset position
                            db.SavePresetPosition(pos);

                            Messenger.Default.Send <NotificationMessage <string> >(new NotificationMessage <string>(
                                                                                       this,
                                                                                       string.Format("The preset position saved successfully."),
                                                                                       "NOTIFY"));
                        }
                        else
                        {
                            // overwrite
                            Messenger.Default.Send <NotificationMessageAction <MessageBoxResult> >(new NotificationMessageAction <MessageBoxResult>(
                                                                                                       this,
                                                                                                       "AskForOverwrite",
                                                                                                       (ret) =>
                            {
                                if (ret == MessageBoxResult.Yes)
                                {
                                    // overwrite the current preset position
                                    if (db.DeletePresetPosition(pos.MotionComponentHashCode, pos.Name))
                                    {
                                        // save the preset position
                                        db.SavePresetPosition(pos);

                                        Messenger.Default.Send <NotificationMessage <string> >(new NotificationMessage <string>(
                                                                                                   this,
                                                                                                   string.Format("The preset position saved successfully."),
                                                                                                   "NOTIFY"));
                                    }
                                    else
                                    {
                                        Messenger.Default.Send <NotificationMessage <string> >(new NotificationMessage <string>(
                                                                                                   this,
                                                                                                   string.Format("Unable to delete the preset position, {0}", db.LastError),
                                                                                                   "ERROR"));
                                    }
                                }
                            }
                                                                                                       ));
                        }
                    }
                    else
                    {
                        // error while reading preset position from database
                        Messenger.Default.Send <NotificationMessage <string> >(new NotificationMessage <string>(
                                                                                   this,
                                                                                   string.Format("Unable to check the existence of the preset position, {0}", db.LastError),
                                                                                   "ERROR"));
                    }
                }
            }
            catch (Exception ex)
            {
                Messenger.Default.Send <NotificationMessage <string> >(new NotificationMessage <string>(
                                                                           this,
                                                                           string.Format("Unable to save the preset position, {0}", ex.Message),
                                                                           "ERROR"));
            }
        }