GRIDCONTROL主子表

效果图，如图：

实现代码：

 private void Form5_Load ( object sender ,EventArgs e )        {            DataSet ds = new DataSet( );            DataTable da = SqlHelper.ExecuteDataTable( "SELECT PQF01,PQF02,PQF03,PQF04 FROM R_PQF" );            da.TableName = "DA";            DataTable de = SqlHelper.ExecuteDataTable( "SELECT PQF01,JM01,JM101 FROM R_PQO A,R_PQF B WHERE A.JM90=B.PQF01" );            de.TableName = "DE";            ds.Tables.Add( da );                ds.Tables.Add( de );            DataRelation relationOne = new DataRelation( "Level2" ,ds.Tables["DA"].Columns["PQF01"] ,ds.Tables["DE"].Columns["PQF01"] );            ds.Relations.Add( relationOne );            gridControl1.DataSource = ds.Tables["DA"];                    }