ICK.print_YBB cr = new print_YBB ();//new FhManager.ICK.print_YBB();
cr.SetDataSource(ClassMain.dt.Tables["ybb"]);
this.crystalReportViewer1.ReportSource = cr;
cr.SetDataSource(ClassMain.dt.Tables["ybb"]);
this.crystalReportViewer1.ReportSource = cr;
CrystalReportViewer1.DataBind();
CrystalReportViewer1.RefreshReport();