or
<telerik:ReportViewer ID="ReportViewer1" runat="server" Style="border: 1px solid #ccc;" Height="650px" Width="95%" Skin="Office2007"> <typereportsource typename="Reports.Report_CM_Assignments, Reports, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null"></typereportsource> </telerik:ReportViewer>protected void Page_Load(object sender, EventArgs e){ if (!IsPostBack) { var instanceReportSource = new Telerik.Reporting.InstanceReportSource(); instanceReportSource.ReportDocument = new Rep1.UrbanRails(); this.ReportViewer1.ReportSource = instanceReportSource; } }ReportBook reportBook = new ReportBook();reportBook.Reports.Add(new dummy2());reportBook.Reports.Add(new dummy());AsitoReporting.Report = reportBook;AsitoReporting.Visible = true;AsitoReporting.DataBind();