private async Task loadDataAsync()
{
var items = await DataItems.GetItemsAsync(pageIndex : 0, pageSize : PageSize);
Items.AddRange(items);
ListsingleItems.ItemsSource = Items;
}
private async Task loadDataAsync()
{
IsWorking = true;
var items = await DataItems.GetItemsAsync(pageIndex : 0, pageSize : PageSize);
var groupItems = items.GroupBy(e => e.Title).Select(e => new ObservableGroupCollection <string, Items>(e)).ToList();
Items.AddRange(groupItems);
OnPropertyChanged("Items");
GroupItems.ItemsSource = Items;
IsWorking = false;
}
public GroupViewList()
{
InitializeComponent();
//BindingContext = new GroupListViewModel();
Items = new InfiniteScrollCollection <ObservableGroupCollection <string, Items> >
{
OnLoadMore = async() =>
{
// load the next page
IsWorking = true;
ListItemsCount = 0;
foreach (var _itemslist in Items)
{
ListItemsCount += _itemslist.Count;
}
double _pagecount = (double)ListItemsCount / PageSize;
var page = Convert.ToInt32(Math.Ceiling(_pagecount));
var items = await DataItems.GetItemsAsync(page, PageSize);
var _items = items.GroupBy(e => e.Title).Select(e => new ObservableGroupCollection <string, Items>(e)).ToList();
if (_items.Count > 0)
{
foreach (var getGroupItems in _items.GroupBy(i => i.Header).ToList())
{
var _GetExistingGroupItems = Items.LastOrDefault(i => i.Header == getGroupItems.Key);
if (_GetExistingGroupItems != null && _GetExistingGroupItems.Count > 0)
{
// this is an existing group, so add the items to that
foreach (var _ExistingGroupedItems in getGroupItems.ToList())
{
foreach (var _GroupListitems in _ExistingGroupedItems.ToList())
{
_GetExistingGroupItems.Add(_GroupListitems); //Update items
}
}
}
else
{
//Add new Group
Items.AddRange(getGroupItems);
GroupItems.ItemsSource = Items;
}
}
}
IsWorking = false;
return(null);
}
};
loadDataAsync();
}
public SingleViewList()
{
InitializeComponent();
Items = new InfiniteScrollCollection <Items>
{
OnLoadMore = async() =>
{
// load the next page
var page = Items.Count / PageSize;
var items = await DataItems.GetItemsAsync(page, PageSize);
IsWorking = false;
return(items);
}
};
// load the initial data
loadDataAsync();
}
