我在Form1中输入bid，又建了个数据集，其字段有  bId ,sDate, sMoney ，然后加载到水晶报表中，在Form2_Load中间价如下代码。运行后只有表结构，没有数据？
Form1 f1 = new Form1();
              if (f1.bid != "")
              {
                  string sql = "select bId ,sDate,sNum*sPrice as sMoney from sale where bId='" + f1.bid + "'";
                  SqlCommand cmd = DBHelper.conn.CreateCommand();
                   = sql;
                  SqlDataAdapter da = new SqlDataAdapter(cmd);
                  DataSet1 dss = new DataSet1();
                  da.Fill(dss, "newsale");
                  CrystalReport1 cr = new CrystalReport1();

               
                  cr.SetDataSource(dss);
                  crystalReportViewer1.ReportSource = cr;

这段代码也能实现，只是我传参是弄错了，呵呵呵……