Get OLV items in "tree sort order"

[Bernhard Mayer]

Dear fellow OLV'ers!

Does anybody know a way how to get the items of a DataTreeListView in the "tree sort order"?

Sample: Imagine a DataTreeListView has the following data source (KeyAspectName = ID, ParentKeyAspectName = ParentID).

Item A with ParentID 0 has ID 1
- Item D with ParentID 1 + ID 5
- Item E with ParentID 1 + ID 6
Item B with ParentID 0 hast ID 2
- Item C with ParentID 2 + ID 3
- Item D with ParentID 2 + ID 4

I would like to get a list containing the items A, D, E, B, C, D in this sort order; is there already a property which will return this data?

TIA,
Bernhard

[CFrank]

Hi Bernhard,

more or less.
What about calling Select.All and iterating over SelectedObjects?
Something like (VB.Net)

Me.TreeListView.SelectAll()
For Each obj In Me.TreeListView.SelectedObjects
    Debug.Print(String.Format("{0}",obj))
Next

Cheers
Claudia

[Phillip Piper]

You could also use GetNthItemInDisplayOrder().

This utility method will work with any type of ObjectListView, grouped or ungrouped:

public IEnumerable GetModelObjectsInDisplayOrder(ObjectListView olv) {
    if (olv == null)
        yield break;

    for (int i = 0; i < olv.GetItemCount(); i++) {
        OLVListItem olvItem = olv.GetNthItemInDisplayOrder(i);
        if (olvItem != null)
            yield return olvItem.RowObject;
    }
}

[Bernhard Mayer]

Very nice, thanks to you both.