public bool MoveNext()
{
var moveNext = _innerEnumerator.MoveNext();
if (moveNext)
{
Current = new ItemTemplateContext(_formsDataTemplate, _innerEnumerator.Current, _container);
}
return(moveNext);
}
public GroupTemplateContext(ItemTemplateContext headerItemTemplateContext,
ItemTemplateContext footerItemTemplateContext, object items)
{
HeaderItemTemplateContext = headerItemTemplateContext;
FooterItemTemplateContext = footerItemTemplateContext;
if (footerItemTemplateContext == null)
{
Items = items;
}
else
{
// UWP ListViewBase does not support group footers. So we're going to fake the footer by adding an
// extra item to the ItemsSource so the footer shows up at the end of the group.
if (items is IList itemsList)
{
// If it's already an IList, we want to make sure to keep it that way
itemsList.Add(footerItemTemplateContext);
Items = itemsList;
return;
}
// If the group items are not an IList, then we'll have to append the footer the hard way
var listPlusFooter = new List <object>();
foreach (var item in (items as IEnumerable))
{
listPlusFooter.Add(item);
}
listPlusFooter.Add(footerItemTemplateContext);
Items = listPlusFooter;
}
}