学习

DataSet ds=Class_Comm.GetServiceAsswConf().GetAllNwTgtAlmPrd(this.TgtTypeseq,this.Sid,this.Tid);

                     DataTable dt=ds.Tables["ttable"];

                     this.dgdMain.DataSource=dt;

                     this.dgdMain.Tag=dt;

                     if (dt.Rows.Count>0)

                     {

                            this.dgdMain.Select(0);

                            ShowDetail();                     

                     }

主要是用select()方法就可以确保你只选一个