async void OnDeleteClicked(object sender, EventArgs e) { var todoItem = (Lab7BItem)BindingContext; Lab7BItemDatabase database = await Lab7BItemDatabase.Instance; await database.DeleteItemAsync(todoItem); await Navigation.PopAsync(); }
public Lab7BItemPageCS() { Title = "Lab7B Item"; var nameEntry = new Entry(); nameEntry.SetBinding(Entry.TextProperty, "TheFact"); var notesEntry = new Entry(); notesEntry.SetBinding(Entry.TextProperty, "ShortFact"); var doneSwitch = new Switch(); doneSwitch.SetBinding(Entry.TextProperty, "ImageFile"); var saveButton = new Button { Text = "Save" }; saveButton.Clicked += async(sender, e) => { var todoItem = (Lab7BItem)BindingContext; Lab7BItemDatabase database = await Lab7BItemDatabase.Instance; await database.SaveItemAsync(todoItem); await Navigation.PopAsync(); }; var deleteButton = new Button { Text = "Delete" }; deleteButton.Clicked += async(sender, e) => { var lab7BItem = (Lab7BItem)BindingContext; Lab7BItemDatabase database = await Lab7BItemDatabase.Instance; await database.DeleteItemAsync(lab7BItem); await Navigation.PopAsync(); }; var cancelButton = new Button { Text = "Cancel" }; cancelButton.Clicked += async(sender, e) => { await Navigation.PopAsync(); }; Content = new StackLayout { Margin = new Thickness(20), VerticalOptions = LayoutOptions.StartAndExpand, Children = { new Label { Text = "TheFact" }, nameEntry, new Label { Text = "ShortFac" }, notesEntry, new Label { Text = "ImageFile" }, doneSwitch, saveButton, deleteButton, cancelButton } }; }