public static void SelectAndScrollInView <Item>(NSOutlineView treeView, Item[] items,
Func <Item, Item> parentGetter) where Item : NSObject
{
var rows = new List <uint> ();
foreach (var item in items)
{
var rowIdx = treeView.RowForItem(item);
if (rowIdx < 0)
{
var stack = new Stack <Item>();
for (var i = parentGetter(item); i != null; i = parentGetter(i))
{
stack.Push(i);
}
while (stack.Count > 0)
{
treeView.ExpandItem(stack.Pop());
}
rowIdx = treeView.RowForItem(item);
}
if (rowIdx >= 0)
{
rows.Add((uint)rowIdx);
}
}
treeView.SelectRows(
NSIndexSet.FromArray(rows.ToArray()),
byExtendingSelection: false
);
if (rows.Count > 0)
{
treeView.ScrollRowToVisible((nint)rows[0]);
}
}