public override object GroupNameFromItem(object item, int level, CultureInfo culture)
{
object value;
if (string.IsNullOrEmpty(PropertyName))
{
value = item;
}
else
{
PropertyPathWalker = PropertyPathWalker ?? new PropertyPathWalker(PropertyName);
value = PropertyPathWalker.GetValue(item);
}
if (converter != null)
{
value = converter.Convert(value, typeof(object), level, culture);
}
return(value);
}
