Hi I'm trying changing font size of a treeView at runtime.

My treeView is contained in a UltraExplorerBar 

when I set a font larger then original, the treeview grow accordingly....

But the group(i have a lot of goup in UltraExplorerBar ) of the UltraExplorerBar  that contain the treeview don't grow...so my treeview  go out of his group and some elements result invisible.

How can i change the size of UltraExplorerBarGroup ?

Code Sample

Friend WithEvents barDecreti As Infragistics.Win.UltraWinExplorerBar.UltraExplorerBar

....

  Dim new_font As New Font(barDecreti.Font.FontFamily, new_size, barDecreti.Font.Style, barDecreti.Font.Unit)

                    barDecreti.Font = new_font

                    For Each gruppo As Infragistics.Win.UltraWinExplorerBar.UltraExplorerBarGroup In barDecreti.Groups()

                        Dim tree As UltraTree = GetGroupTreeView(gruppo)

                        If tree.Override.NodeSpacingAfter + factor > 0 Then

                            tree.Override.NodeSpacingAfter += (factor)

                        End If

                        If tree.Override.ItemHeight + factor > 0 Then

                            tree.Override.ItemHeight += factor

                        End If

                    Next