DevExpress GridControl显示主从表数据(Master/Detail)

            this.gvDetail.ViewCaption = "报工明细";
            this.gvDetail.OptionsView.ShowGroupPanel = false;
            this.gcSummary.LevelTree.Nodes[0].RelationName = nameof(res_ProductionRegProgressMaster.Details);

            //设置蓝色标题背景色
            foreach (GridColumn col in gvDetail.Columns)
            {
                col.AppearanceHeader.BackColor = System.Drawing.Color.DeepSkyBlue;
            }

            List<res_ProductionRegProgressMaster> data = _BLL.QueryProgress(input);
            gcSummary.DataSource = data; //绑定主表的Grid