public int Compare(object x, object y)
{
int result = 0;
int sortColumn = fOwner.fSortColumn;
SortOrder sortOrder = fOwner.fSortOrder;
if (sortOrder != SortOrder.None && sortColumn >= 0)
{
ListViewItem item1 = (ListViewItem)x;
ListViewItem item2 = (ListViewItem)y;
if (sortColumn == 0)
{
if (item1 is IComparable && item2 is IComparable)
{
IComparable eitem1 = (IComparable)x;
IComparable eitem2 = (IComparable)y;
result = eitem1.CompareTo(eitem2);
}
else
{
result = ZListView.StrCompareEx(item1.Text, item2.Text);
}
}
else if (sortColumn < item1.SubItems.Count && sortColumn < item2.SubItems.Count)
{
ListViewItem.ListViewSubItem subitem1 = item1.SubItems[sortColumn];
ListViewItem.ListViewSubItem subitem2 = item2.SubItems[sortColumn];
if (subitem1 is IComparable && subitem2 is IComparable)
{
IComparable sub1 = (IComparable)subitem1;
IComparable sub2 = (IComparable)subitem2;
result = sub1.CompareTo(sub2);
}
else
{
result = ZListView.StrCompareEx(subitem1.Text, subitem2.Text);
}
}
if (sortOrder == SortOrder.Descending)
{
result = -result;
}
}
return(result);
}
public LVColumnSorter(ZListView owner)
{
fOwner = owner;
}