DEV GridView嵌套

　　　/// <summary>
        /// 绑定主表和明显表到GridView
        /// </summary>
        /// <param name="machineProduct">主表</param>
        /// <param name="configureData">字表</param>
        private void MasterDatailToGridView(DataTable machineProduct, DataTable configureData)
        {
            machineProduct.TableName = "MachineProduct";
            DataSet ds = new DataSet();
            ds.Tables.Add(machineProduct);
            DataTable dtNew = configureData.Clone();
            dtNew.TableName = "AccessoryConfigure";
            foreach (DataRow dr in configureData.Rows)
            {
                object[] arr = dr.ItemArray;
                dtNew.Rows.Add(arr);
            }
            ds.Tables.Add(dtNew);

　　　　//关联字段为GOODS_ID（商品ID）
            DataColumn keyColumn = ds.Tables["MachineProduct"].Columns["GOODS_ID"];
            DataColumn foreignKeyColumn = ds.Tables["AccessoryConfigure"].Columns["GOODS_ID"];
            ds.Relations.Add("商品单位", keyColumn, foreignKeyColumn, false);

            this.gridControl1.DataSource = ds.Tables["MachineProduct"];
         this.gridControl1.ForceInitialize();
            MachineProductGridView.ExpandAllGroups(); // 默认展开分组
        }
        #endregion