private void OnItemsSourceChanged()
{
addRemoveItemHanlder.Reset();
//_manualSort.Clear();
ScrollPosition = new Point(ScrollPosition.X, 0);
if (_view != null)
{
_view.VectorChanged -= _view_VectorChanged;
}
_view = ItemsSource as ICollectionView;
_props = null;
_itemType = null;
if (_view == null && ItemsSource != null)
{
_view = new UWPCollectionView(ItemsSource);
}
// remove old rows, auto-generated columns
Rows.Clear();
// bind grid to new data source
if (_view != null)
{
// connect event handlers
_view.VectorChanged += _view_VectorChanged;
// get list of properties available for binding
_props = GetItemProperties();
//HanldeOuterScrollViewerWithISupportIncrementalLoading();
// just in case GetItemProperties changed something
// initialize non-auto-generated column bindings
foreach (var col in Columns)
{
//if (!col.AutoGenerated)
{
BindColumn(col);
}
}
// load rows
LoadRows();
}
}
void LoadRows()
{
if (_view != null)
{
//if (LoadingRows != null)
//{
// LoadingRows(this, EventArgs.Empty);
//}
using (Rows.DeferNotifications())
{
// add all data items
Rows.Clear();
CreateBoundRows();
}
//if (LoadedRows != null)
//{
// LoadedRows(this, EventArgs.Empty);
//}
// show new data and sorting order
Invalidate();
}
}