C#的Dev中GridControl_gridview新增添加数据

 DataTable dt = gridControl1.DataSource as DataTable;
            string equ_id = comboBoxEdit_add_equ_link_id.Text;
            string stocker_dsr = comboBoxEdit_add_stocker_type.Text;
            string stocker_id = comboBoxEdit_add_stocker_id.Text;
            string motion_type = comboBoxEdit_add_motion_type.Text;
            string stocker_seq = textEdit_add_sort_number.Text;
            if(equ_id.Length>0&& stocker_dsr.Length > 0 && stocker_id.Length > 0 && motion_type.Length > 0 && stocker_seq.Length > 0 )
            {

            }
            else
            {
                MessageBox.Show("请选择或者输入信息",CFile_Operation.molding_title,MessageBoxButtons.OK, MessageBoxIcon.Information);
                return;
            }
            

            if (dt != null)
            {

                DataRow dr = dt.NewRow();
                dr["序号"] = dt.Rows.Count+1;
                dr["设备号"] = equ_id;
                dr["线边仓类型"] = stocker_dsr;
                dr["线边仓号"] = stocker_id;
                dr["动作类型"] = motion_type;
                dr["线边仓排序"] = stocker_seq;
                dr["创建时间"] = DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss");
                dr["创建人员"] = FrameGlobal.LoginUser.Account;
                dt.Rows.Add(dr);
                dt.AcceptChanges();

                gridControl1.DataSource = dt;
               // gvQnA.DataBind();
            }