I want to move the right cell using right key in a row, but it move to next row  in my UltraGrid.  It can be move to the right cell if I use mouse click on one cell first.Can always move to adjacent cell one by one  using  up, down, left,right keyboard ? How to code?

my code,

 else if (this.ActiveControl is UltraGrid || this.ActiveControl.Parent is UltraGrid)
            {
                if (keyData == Keys.Enter)
                {
                    keyData = Keys.Tab;
                }
                else if (keyData == Keys.F5)
                {
                    if (ActiveControl is UltraGrid)
                    {
                        CurrentCtrl = this.ActiveControl;
                    }
                    else
                    {
                        CurrentCtrl = this.ActiveControl.Parent;
                    }
                    CurrentGroupBox = CurrentCtrl.Parent;
                    int GroupBoxIndex = CurrentGroupBox.TabIndex;
                    CurrentPage = CurrentGroupBox.Parent;
                    foreach (Control ctrl in CurrentPage.Controls)
                    {
                        if (ctrl is UltraGroupBox && ctrl.TabIndex != GroupBoxIndex)
                        {
                            Control childCtrl = ctrl.GetNextControl(ctrl, true);
                            if (childCtrl.CanFocus)
                            {
                                childCtrl.Focus();

// Here get focus, but move no right, How to code ?
                            }
                        }
                    }
                }