private void updateEntries(params VM[] viewModels) { FastObservableCollection <VM> all = All as FastObservableCollection <VM>; all.SuspendCollectionChangeNotification(); var removeItems = all.Where(vm => !viewModels.Contains(vm)).ToList(); var addItems = viewModels.Where(vm => !all.Contains(vm)).ToList(); if (addItems.Count == 0 && removeItems.Count == 0) { return; //nothing to do here } foreach (var vm in removeItems) { all.Remove(vm); } foreach (var vm in addItems) { all.Add(vm); } _subItemList = all.ToArray().ToList(); all.NotifyChanges(); EntriesChanged?.Invoke(this, EventArgs.Empty); }
private void updateEntries(params VM[] viewModels) { FastObservableCollection <VM> all = All as FastObservableCollection <VM>; all.SuspendCollectionChangeNotification(); var removeItems = all.Where(vm => !viewModels.Contains(vm)).ToList(); var addItems = viewModels.Where(vm => !all.Contains(vm)).ToList(); foreach (var vm in removeItems) { all.Remove(vm); } foreach (var vm in addItems) { all.Add(vm); } _subItemList = all.ToArray().ToList(); all.NotifyChanges(); if (EntriesChanged != null) { EntriesChanged(this, EventArgs.Empty); } }