internal int ViewIndexOf(object item)
{
if (View == null)
{
return(-1);
}
CollectionView cv = View as CollectionView;
if (cv != null)
{
return(cv.IndexOf(item));
}
// As a last resort, use the IList interface or IndexedEnumerable to look for the item.
if (ViewList != null)
{
return(ViewList.IndexOf(item));
}
return(-1);
}