DevExpress中GridControl实现主从表绑定数据

        private void BindData(GridControl gridControl, string strSql1, string strSql2)        {            string strConn = "";//连接数据库的字符串            OleDbDataAdapter oleDBAdapter1 = new OleDbDataAdapter(strSql1, strConn);            OleDbDataAdapter oleDBAdapter2 = new OleDbDataAdapter(strSql2, strConn);            DataSet dataSet = new DataSet();            oleDBAdapter1.Fill(dataSet, "table1Name");            oleDBAdapter2.Fill(dataSet, "table2Name");            dataSet.Relations.Add("relations",                dataSet.Tables["table1Name"].Columns["column1Name"],                dataSet.Tables["table2Name"].Columns["column2Name"]);            gridControl.DataSource = dataSet.Tables["table1Name"];        }        //strSql1为table1的连接字符串         //strSql2为table2的连接字符串         //把table1作为主表,把table2作为从表,table1的列column1是该表的主键,在table2中的column2是外键(table1);