private void ConfigureForRemoval()
{
var itemsToRemove = new ObservableRangeCollection <BaseMenuItemViewModel> ();
// Update each item in the list
foreach (BaseMenuItemViewModel viewModel in ItemViewModels)
{
if (viewModel.MenuItemType == MenuItemType.Added)
{
viewModel.MenuItemType = MenuItemType.Remove;
}
else
{
itemsToRemove.Add(viewModel);
}
}
// Remove the items that aren't editable
if (itemsToRemove.Count > 0)
{
foreach (BaseMenuItemViewModel viewModel in itemsToRemove)
{
ItemViewModels.Remove(viewModel);
}
}
// Toggle the visibility of the "All accounts are removed" text
ShowSubtitle = ItemViewModels.Count == 0;
}
private async Task DeleteItemsAsync()
{
LoggingService.Debug($"{LoggingPrefix}DeleteItemsAsync() - Start ");
var selectedItemViewModelsList = SelectedItemViewModels.ToList();
var deletionCount = selectedItemViewModelsList.Count;
if (deletionCount < 1)
{
return;
}
var dialogService = Xamarin.Forms.DependencyService.Get <IDialogService>();
var deleteStringContent = deletionCount > 1 ? $"{deletionCount}" : selectedItemViewModelsList.First().GetModelDisplayString(selectedItemViewModelsList.First().CurrentItem);
var answer = await dialogService.ConfirmDeletion(deleteStringContent, deletionCount == 1);
if (answer != true)
{
return;
}
await Task.Delay(100);
lock (this.syncObj)
{
foreach (var viewModel in selectedItemViewModelsList)
{
var state = viewModel.InitialState;
var newState = ViewStatesHelper.MoveToState(viewModel.State, ViewStates.Deleting);
LoggingService.Debug($"{LoggingPrefix}DeleteItemsAsync() - InitialState: {state}; newState: {newState}. ");
LoggingService.Debug($"{LoggingPrefix}DeleteItemsAsync() - Removing from selectedItemViewModels");
if (state != ViewStates.Creating && state != ViewStates.UpdatingCreate)
{
LoggingService.Debug($"{LoggingPrefix}DeleteItemsAsync() - this is an existing item. continuing. ");
viewModel.IsSelected = false;
viewModel.State = newState;
continue;
}
LoggingService.Debug($"{LoggingPrefix}DeleteItemsAsync() - newly created item. can be easely discarded.. Removing from ItemViewModels. ");
ItemViewModels.Remove(viewModel);
}
LoggingService.Debug($"{LoggingPrefix}DeleteItemsAsync() - End ");
this.RaisePropertyChanged(nameof(WrappedItemViewModels));
}
}
private async void OnListItemSelected(IListItem item)
{
var viewModel = item as BaseMenuItemViewModel;
if (MenuState == MenuState.Remove)
{
// if we're in remove mode, this also means this item has to be removed from the list
ItemViewModels.Remove(viewModel);
ShowSubtitle = ItemViewModels.Count == 0;
}
else
{
// If we're not, then that must mean we just added one
await viewModel.DidLoad();
}
var addedCount = ItemViewModels.Count(vm => ((BaseMenuItemViewModel)vm).MenuItemType == MenuItemType.Added || ((BaseMenuItemViewModel)vm).MenuItemType == MenuItemType.Remove);
//Title = (addedCount == 0) ? String.Empty : _homeViewModel.GetName();
}