protected virtual void UpdateTemplatedCell(TemplatedCell cell, NSIndexPath indexPath)
{
cell.ContentSizeChanged -= CellContentSizeChanged;
cell.Bind(ItemsView.ItemTemplate, ItemsSource[indexPath], ItemsView);
cell.ContentSizeChanged += CellContentSizeChanged;
ItemsViewLayout.PrepareCellForLayout(cell);
}
void UpdateTemplatedSupplementaryView(TemplatedCell cell, NSString elementKind, NSIndexPath indexPath)
{
DataTemplate template = elementKind == UICollectionElementKindSectionKey.Header
? ItemsView.GroupHeaderTemplate
: ItemsView.GroupFooterTemplate;
var bindingContext = ItemsSource.Group(indexPath);
cell.Bind(template, bindingContext, ItemsView);
if (cell is ItemsViewCell)
{
cell.ConstrainTo(GetLayoutSpanCount() * ItemsViewLayout.ConstrainedDimension);
}
}