Devexpress show ContextMenu in GridView Item

ContextMenuStrip cms = new ContextMenuStrip();
            ToolStripItem tsi = new ToolStripMenuItem("Мэдээлэл", null, (s, e) =>
            {
                if (DataModel != null)
                {
                    GridItemMetaInfo f = new GridItemMetaInfo(DataModel);
                    f.Show();
                }
            });
            cms.Items.Add(tsi);
            GridItemContextMenu = cms;

/*GridView*/


private void Grd_PopupMenuShowing(object sender, PopupMenuShowingEventArgs e)
        {
            showGridItemContextMenu((GridView)sender);
        }

        private void showGridItemContextMenu(GridView view)
        {
            if (view.FocusedColumn == null) return;

            int ri = view.FocusedRowHandle;
            int vi = view.FocusedColumn.VisibleIndex;
            GridViewInfo info = (GridViewInfo)view.GetViewInfo();

            GridCellInfo cell = info.GetGridCellInfo(ri, view.FocusedColumn);
            System.Drawing.Rectangle r = cell.Bounds;

            System.Drawing.Point point = new System.Drawing.Point(r.X + r.Width, r.Y + r.Height);
            GridItemContextMenu.Show(view.GridControl, point);
        }

        private void showGridItemContextMenu(GridView view, System.Drawing.Point location)
        {
            GridHitInfo hitInfo = view.CalcHitInfo(location);
            if (hitInfo.InRow)
            {
                view.FocusedRowHandle = hitInfo.RowHandle;
                GridItemContextMenu.Show(view.GridControl, location);
            }
        }