图例：

主要代码如下：

说明：给GridView添加事件gv_CustomDrawEmptyForeground

  private void gv_CustomDrawEmptyForeground(object sender, DevExpress.XtraGrid.Views.Base.CustomDrawEventArgs e)

        {

            int num = 100;

            if (DSMain.Tables[0].Rows.Count < 1) {

                string str = "没有找到你要查询的数据！";

                Font f = new Font("华文中宋", 10, 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);

            }

        }