/// <summary>
/// Invoked when the switch is toggled or untoggled.
/// </summary>
/// <param name="sender">Checkbox-style Switch</param>
/// <param name="e">ToggledEventArgs</param>
private void ItemSwitch_Toggled(object sender, ToggledEventArgs e)
{
if (currentPage == null)
{
int currentIndex = (App.Current.MainPage as NavigationPage).Navigation.NavigationStack.Count - 1;
currentPage = (WorldclockDeletePage)(App.Current.MainPage as NavigationPage).Navigation.NavigationStack[currentIndex];
}
// In case that it's called by deleteAllSwitch, there's nothing to do anymore.
if (currentPage.OnAlldeleted == SwitchType.WholeSwitch)
{
return;
}
currentPage.OnAlldeleted = SwitchType.SingleSwitch;
// It's called by turning on/off the "CheckBoxSwitch" switch
// In case that Switch in ListView's ItemCell is off,
if (!e.Value && currentPage.deleteAllSwitch.IsToggled)
{
currentPage.deleteAllSwitch.IsToggled = false;
}
UpdateTitle();
// In case that Switch is on
// Need to check all data items' switches are all on
// If so, deleteAllSwitch switch should be toggled.
if (e.Value && (currentPage.selectedItems == ((WorldclockInfo)currentPage.BindingContext).CityRecordList.Count))
{
currentPage.deleteAllSwitch.IsToggled = true;
}
currentPage.OnAlldeleted = SwitchType.None;
}
/// <summary>
/// Invoked when "Delete" more menu is choosed
/// </summary>
/// <param name="menu">string</param>
private void ShowDeletePage(string menu)
{
// Make MoreMenuDialog invisible
dialog.Hide();
// Make WorldclockDeletePage visible
Navigation.PushAsync(WorldclockDeletePage.GetInstance(App.ClockInfo), false);
}
/// <summary>
/// Return Worldclock delete page
/// </summary>
/// <param name="_info">WorldclockInfo</param>
/// <returns>WorldclockDeletePage</returns>
public static WorldclockDeletePage GetInstance(WorldclockInfo _info)
{
return(DeletePage ?? (DeletePage = new WorldclockDeletePage(_info)));
}
