private void bind()
        {
            DataSet ds = new DataSet();
            BLL.bunit bu = new BLL.bunit();
            ds = bu.GetAllList();
            if (ds != null)
            {
                GridView1.DataSource = ds;
                GridView1.DataKeyNames = new string[] { "ID" };//主键
                GridView1.DataBind();
            }
        }

        protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
        {
            if (e.Row.RowIndex > -1)
            {
                string name = GridView1.Rows[e.Row.RowIndex].Cells[1].Text.Trim();
                e.Row.Attributes.Add("onclick ", " window.opener.document.getElementById('txtpunit').value=" + name + ";window.opener=null;window.close();");
                bind();
            }
       }