public void Sort(RtItemSortOrder order)
{
if (order != RtItemSortOrder.Place)
{
Items.Sort(delegate(RtItem item1, RtItem item2)
{
return(CompareRtItems(item1, item2, order));
});
}
}
private static int CompareRtItems(RtItem item1, RtItem item2, RtItemSortOrder order)
{
if (item1 == null && item1 == null)
{
return(0);
}
else
if (item1 == null)
{
return(-1);
}
else
if (item1 == null)
{
return(1);
}
switch (order)
{
case RtItemSortOrder.Surname:
if (!string.IsNullOrEmpty(item1.LastName) &&
!string.IsNullOrEmpty(item2.LastName))
{
return(item1.LastName.CompareTo(item2.LastName));
}
break;
case RtItemSortOrder.FirstName:
if (!string.IsNullOrEmpty(item1.FirstName) &&
!string.IsNullOrEmpty(item2.FirstName))
{
return(item1.FirstName.CompareTo(item2.FirstName));
}
break;
case RtItemSortOrder.City:
if (!string.IsNullOrEmpty(item1.City) &&
!string.IsNullOrEmpty(item2.City))
{
return(item1.City.CompareTo(item2.City));
}
break;
case RtItemSortOrder.Rating:
return(Math.Sign(item2.Rating - item1.Rating));
}
return(Math.Sign(item1.Place - item2.Place));
}
