水晶报表连接用户名和密码问题

  TableLogOnInfo info = new TableLogOnInfo();
        info.ConnectionInfo = ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString.get;
        info.ConnectionInfo.DatabaseName = "ERPOA";
        info.ConnectionInfo.Password = "112233";
        info.ConnectionInfo.ServerName = @"he\sql08";
        info.ConnectionInfo.UserID = "sa";

 动态从webconfig 里取连接信息 怎么写
 谢! --------------------编程问答-------------------- 另外ConnectionString 有加密的 --------------------编程问答-------------------- 和config 没有关系。
  CrystalReportSource1.ReportDocument.Load(Server.MapPath("MyCrystal.rpt"));
        //CrystalReportSource1.ReportDocument.SetDataSource();
        CrystalReportSource1.ReportDocument.SetDatabaseLogon("sa", "", "127.0.0.1", "students");

        CrystalReportViewer1.ReportSource = CrystalReportSource1;
        CrystalReportViewer1.DataBind();
        

补充：.NET技术 ,  ASP.NET