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Design Time Problems. ReportSource property from the ReportViewer property grid does not show available reports


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I want to show my report in a ReportViewer control, but when I click on the arrow in the ReportSource property from the property grid, it does not show available reports - what is wrong?


Follow our best practices and have the report in a separate class library that is referenced in the application or website. Check if the class library containing the report is referenced in your application/website and that you have rebuilt the application/website.

The most reliable way to specify a report for the ReportViewer is to do this programmatically. For example, if you're using the ASP.NET Web Forms Report Viewer, on the Page_Load event of the page:

protected void Page_Load(object sender, EventArgs e)
    if (!IsPostBack)
        var typeReportSource = new Telerik.Reporting.TypeReportSource();
        typeReportSource.TypeName = "Telerik.Reporting.Examples.CSharp.ListBoundReport, CSharp.ReportLibrary";
        this.ReportViewer1.ReportSource = typeReportSource;
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
    If Not IsPostBack Then
        Dim typeReportSource As New Telerik.Reporting.TypeReportSource()
        typeReportSource.TypeName = "ListBoundReport, VB.ReportLibrary"
        ReportViewer1.ReportSource = typeReportSource
    End If
End Sub
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