async Task ExecuteLoadItemsCommand()
{
if (IsBusy)
{
return;
}
IsBusy = true;
try
{
Plans.Clear();
var plans = await PlanStore.GetDatasAsync(true);
foreach (var item in plans)
{
Plans.Add(item);
}
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine(ex);
}
finally
{
IsBusy = false;
}
}
public ParkingPlanViewModel()
{
Title = "Parking Plan";
Plans = new ObservableCollection <Plan>();
LoadPlansCommand = new Command(async() => await ExecuteLoadItemsCommand());
MessagingCenter.Subscribe <NewPlanPage, Plan>(this, "AddPlan", async(obj, item) =>
{
var newItem = item as Plan;
var existPlan = Plans.SingleOrDefault(x => x.Id == newItem.Id);
if (existPlan != null)
{
Plans.Remove(existPlan);
Plans.Add(newItem);
await PlanStore.UpdateDataAsync(newItem);
}
else
{
Plans.Add(newItem);
await PlanStore.AddDataAsync(newItem);
}
});
}
