SftTree/OCX 7.5 - ActiveX Tree Control


Expand Method, SftTreeItem Object

Expands the item so its dependents become visible.


VB.NETobject.Expand(ByVal Preserve As Boolean, ByVal Depth As Boolean)
VBobject.Expand(ByVal Preserve As Boolean, ByVal Depth As Boolean)
C#.NETvoid object.Expand(bool Preserve, bool Depth);
VC++HRESULT object->Expand(VARIANT_BOOL Preserve, VARIANT_BOOL Depth);
CHRESULT object->raw_Expand(VARIANT_BOOL Preserve, VARIANT_BOOL Depth);


A SftTreeItem object.


Defines whether the expand/collapse state is restored. This argument is ignored if the Depth argument is True.

TrueRestores the expand/collapse state of dependent items made visible, as saved by a previous call to Items.Collapse or Item.Collapse.
FalseThe expand/collapse state is not restored. Only the item itself is expanded and immediate dependents are made visible. They may be expanded or collapsed based on the Depth argument.


Defines the depth of the items to become visible.

TrueExpands all dependent items, including non-immediate dependent items. Preserve is ignored as all dependents are expanded.
FalseExpands dependent items, based on the Preserve settings.


The Expand method expands the item so its dependents become visible.

The Expand method expands all dependent items of the item and restores the expand/collapse state of all dependent items, as saved by a previous Items.Collapse or Item.Collapse method call.

If the item is already expanded when using Expand, the item remains unchanged. It does not make any indirect dependents visible. To make sure that an item's indirect dependents are shown, use the Item.Collapse method first, which collapses the item (and all dependents), followed by Expand. Now all dependents are visible.



    End Sub

    Private Sub AxSftTree1_ItemClick(ByVal sender As Object, ByVal e As AxSftTreeLib75._DSftTreeEvents_ItemClickEvent) Handles AxSftTree1.ItemClick
        Dim AreaType As Short = e.areaType
        If AreaType = SftTreeAreaTypeConstants.constSftTreeButton Then
            If (AxSftTree1.get_Item(e.itemIndex).Expanded) Then
                AxSftTree1.get_Item(e.itemIndex).Expand(True, False)
            End If
        ElseIf AreaType = SftTreeAreaTypeConstants.constSftTreeText Then
            ' edit description
            If e.colIndex = 1 Then
                AxSftTree1.get_Cell(e.itemIndex, e.colIndex).Edit(0, 0)
            End If
        ElseIf AreaType = SftTreeAreaTypeConstants.constSftTreeColumn Then


Private Sub SftTree1_ItemClick(ByVal ItemIndex As Long, ByVal ColIndex As Integer, ByVal AreaType As Integer, ByVal Button As Integer, ByVal Shift As Integer)
    Dim Ascending As Boolean
    With SftTree1
        If AreaType = constSftTreeButton Then
            If .Item(ItemIndex).Expanded Then
                .Item(ItemIndex).Collapse True
                .Item(ItemIndex).Expand True, False
            End If
        ElseIf AreaType = constSftTreeText Then
            ' edit description
            If ColIndex = 1 Then
                .Cell(ItemIndex, ColIndex).Edit 0, 0
            End If
        ElseIf AreaType = constSftTreeColumn Then
            Dim SortedColumn As Integer



        private void axSftTree1_ItemClick(object sender, AxSftTreeLib75._DSftTreeEvents_ItemClickEvent e) {
            SftTreeAreaTypeConstants area = (SftTreeAreaTypeConstants) e.areaType;
            if (area == SftTreeAreaTypeConstants.constSftTreeButton) {
                if (axSftTree1.get_Item(e.itemIndex).Expanded)
                    axSftTree1.get_Item(e.itemIndex).Expand(true, false);
            } else if (area == SftTreeAreaTypeConstants.constSftTreeText) {
                // edit description
                if (e.colIndex == 1)
                    axSftTree1.get_Cell(e.itemIndex, e.colIndex).Edit(0, 0);
            } else if (area == SftTreeAreaTypeConstants.constSftTreeColumn) {
                short sortedColumn = axSftTree1.Headers.SortedColumn;
                if (sortedColumn >= 0) {



void CEmailDlg::OnItemClickSftTree1(long ItemIndex, short ColIndex, short AreaType, short Button, short Shift)
    if (AreaType == constSftTreeButton) {
        if (m_vTree->Item[ItemIndex]->Expanded != VARIANT_FALSE)
            m_vTree->Item[ItemIndex]->Expand(VARIANT_TRUE, VARIANT_FALSE);
    } else if (AreaType == constSftTreeText) {
        // edit description
        if (ColIndex == 1)
            m_vTree->Cell[ItemIndex][ColIndex]->Edit(0, _variant_t(0L));
    } else if (AreaType == constSftTreeColumn) {
        int sortedColumn = m_vTree->Headers->SortedColumn;
        if (sortedColumn >= 0) {

See Also SftTreeItem Object | Object Hierarchy

Last Updated 08/13/2020 - (email)
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