async Task ExecuteLoadItemsCommand()
{
if (IsBusy)
{
return;
}
IsBusy = true;
try
{
ItemsTodo.Clear();
TimeLine = new DateTime();
TimeLine = TimeLine.AddDays((WeekTimeLine * 7) - 1);
var items = await ItemTodoDataStore.GetItemsTodoAsync(TimeLine, true);
foreach (var item in items)
{
ItemsTodo.Add(item);
}
}
catch (Exception ex)
{
Debug.WriteLine(ex);
}
finally
{
IsBusy = false;
}
}
public ItemsTodoViewModel()
{
Title = "Browse";
WeekTimeLine = 1;
SelectedDateTimeLine = DateTime.Now;
ItemsTodo = new ObservableCollection <Models.ItemTodo>();
LoadItemsCommand = new Command(async() => await ExecuteLoadItemsCommand());
NextWeekCommand = new Command(async() => await ExecuteNextItemsCommand(WeekTimeLine));
PrevWeekCommand = new Command(async() => await ExecutePrevItemsCommand(WeekTimeLine));
WeekFromDayCommand = new Command(async() => await ExecuteWeekFromDayItemsCommand(SelectedDateTimeLine));
MessagingCenter.Subscribe <NewItemTodoPage, Models.ItemTodo>(this, "AddItem", async(obj, item) =>
{
var newItem = item as Models.ItemTodo;
ItemsTodo.Add(newItem);
await ItemTodoDataStore.AddItemTodoAsync(newItem);
});
}
async Task ExecutePrevItemsCommand(int weektosearch)
{
if (IsBusy)
{
return;
}
IsBusy = true;
try
{
ItemsTodo.Clear();
TimeLine = new DateTime();
if (WeekTimeLine <= 1)
{
WeekTimeLine = 2;
}
TimeLine = TimeLine.AddDays(((WeekTimeLine - 1) * 7));
var items = await ItemTodoDataStore.GetItemsTodoAsync(TimeLine, true);
foreach (var item in items)
{
ItemsTodo.Add(item);
}
if (WeekTimeLine <= 1)
{
WeekTimeLine = 2;
}
else
{
WeekTimeLine = WeekTimeLine - 1;
}
}
catch (Exception ex)
{
Debug.WriteLine(ex);
}
finally
{
IsBusy = false;
}
}
