foreach( UltraTreeNode rootNode in this.ultraTree1.Nodes )
                {
                switch( iTagg )
                    {
                    case 0:
                        foreach( UltraTreeNode childNode in rootNode.Nodes )
                            {
                            childNode.Cells[ 1 ].Appearance.BackColor = Color.BlueViolet;
                            foreach( UltraTreeNode grandchildNode in childNode.Nodes )
                                {
                                childNode.Cells[ 1 ].Appearance.BackColor = Color.Red;
                                }
                            }
                        break;
                    case 1:
                        foreach( UltraTreeNode childNode in rootNode.Nodes )
                            {
                            childNode.Cells[ 1 ].Appearance.BackColor = Color.Yellow;
                            foreach( UltraTreeNode grandchildNode in childNode.Nodes )
                                {
                                childNode.Cells[ 1 ].Appearance.BackColor = Color.Purple;
                                }
                            }
                        break;
                    }