crystal report asking for username and password every time in ASP.Net

solved with this code

ReportDocument crystalReport = new ReportDocument();
crystalReport.Load(Server.MapPath("CrystalReport1.rpt"));
crystalReport.SetDatabaseLogon("sa", "123456789", @"TRAINING-ROOM-8", "newMreport");
CrystalReportViewer1.ReportSource = crystalReport;