Hi,

I'm trying to create a UltraTree with several columns and checkboxes for the nodes. For some reason I can't get the checkboxes to appear. The only thing that seems necessary to get checkboxes is to set

    aTree.Override.NodeStyle = NodeStyle.CheckBox;

At least this is the only thing I saw set in the UltraTree Cell Editing sample that shows a tree of Events with checkboxes in front.

Is there something I need to be aware of in order to get checkboxes? Maybe defining custom columns affects this behavior somehow?

I initialize the tree like this:

    aTree.Override.CellClickAction = CellClickAction.EditCellSelectText;

    aTree.ViewStyle = ViewStyle.OutlookExpress;

    aTree.ScrollBounds = ScrollBounds.ScrollToFill;

    aTree.ExpandAll(ExpandAllType.Always);

    aTree.Override.NodeStyle = NodeStyle.CheckBox;

    UltraTreeColumnSet columnSet = aTree.ColumnSettings.RootColumnSet;

    UltraTreeNodeColumn nameColumn = columnSet.Columns.Add("Name");

    nameColumn.DataType = typeof(string);

    nameColumn.LayoutInfo.PreferredLabelSize = new Size(100, 0);

    [... other columns]

and then add nodes like this:

    UltraTreeNode node = aTree.Nodes.Add();

    node.CheckedState = CheckState.Checked;

    //node.Override.NodeStyle = NodeStyle.CheckBox;

    node.SetCellValue(aTree.ColumnSettings.RootColumnSet.Columns["Name"], name);

    [... other columns]

I even tried setting the checkbox style per node (the commented line) without success.

Thanks,

Vlad