Gridcontrol display information when there is no data

Legend:

The main code is as follows:

Description: Add event Gv_customdrawemptyforeground to GridView

  private void Gv_customdrawemptyforeground (object sender, DevExpress.XtraGrid.Views.Base.CustomDrawEventArgs e)        {            int num = +;            if (Dsmain.tables[0]. Rows.Count < 1) {                string str = "The data you want to query is not found! ";                Font f = new Font ("XXFarEastFont-Arial", fontstyle.regular);                Rectangle rec = new Rectangle (e.bounds.top + num, e.bounds.left + num, e.bounds.right-num, e.bounds.bottom-num);                E.graphics.drawstring (str, F, Brushes.black, rec);                        }        }

Gridcontrol display information when there is no data