/// <summary>
/// Lazy loading of items
/// </summary>
private void ItemsDataGrid_ScrollChanged(object sender, ScrollChangedEventArgs e)
{
ScrollViewer scrollViewer = (ScrollViewer)e.OriginalSource;
if (ChangeVerticalOffset)
{
scrollViewer.ScrollToVerticalOffset(PreviousScrollVerticalOffset);
ChangeVerticalOffset = false;
}
else
{
PreviousScrollVerticalOffset = e.VerticalOffset;
// Trigger when the scrollbar is at the end
if (e.VerticalOffset == scrollViewer.ScrollableHeight && e.VerticalOffset != 0 && !IsScrollAlreadyAtTheEnd)
{
ItemsDataGrid.ItemsSource = EncycloDB.LoadNewItems();
if (ActualSortedColumnIndex != 0)
{
ItemsDataGrid.Columns[ActualSortedColumnIndex].SortDirection = ActualSortDirection;
}
IsScrollAlreadyAtTheEnd = true;
ChangeVerticalOffset = true;
}
else
{
IsScrollAlreadyAtTheEnd = false;
}
}
}
