parameter report fails to render using reportviewer web control

  • I have a report that takes one parameter and works fine using Report Manager and in VS 2005, however when I try to access it via a report viewer control in an aspx page I have problems.

    The parameter is an integer (1-52 for weeks), the available values of the prompt are populated via a query (of an integer field), and the default value is set at null.

    The page loads, shows the report viewer, and drop down prompt. However, when a value is chosen and the View Report button clicked nothing happens. When I hard code a default value such as 1 the report will run fine, but then when I go to choose another value from the drop down and click View Report, it just renders the report based on the value 1 again. My code behind is super basic:

    [font="Courier New"]Imports Microsoft.Reporting.WebForms

    Imports Microsoft.ReportingServices.ReportProcessing

    Imports Microsoft.ReportingServices

    Partial Class secure_manager_reports

    Inherits System.Web.UI.Page

    Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load

    ReportViewer1.ServerReport.ReportServerCredentials = New ReportServerCredentials()

    End Sub

    End Class[/font]

    Anyone know what's going wrong here?

  • are you checking if the page is PostBack?

  • Checking for postback did it. I am not sure why I needed that but that just goes to show what a newbie I am. Thanks.

  • not a problem!

    You are welcome.

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