Using Object data source in ASP.NET 4 ReportViewer

Question

OK, I think I\'m getting mad here... I thought this should be super simple, but I just can\'t figure out how to do that.

This is what I\'m trying to do: I want to cr

Answer 1

I have the same problem and found a way around it. For some reason if you develop a ASP.NET application Microsoft took away add new datasource functionality. The way around is not great but it does work. I use all objects and I use the Enterprise library and I want to use my objects for my reports it only makes sense why they don't enable you to do this. I have no idea why Microsoft would not allow this functionality for web apps.

But that leaves windows apps it works so what I did was create a separate windows project include my objects that I want to bind to in that project and create the report on the forms project. I then bring that report into my Asp.net web app and call it through code. Here is a few pieces of code that I use to do this. This is in VB but could be converted to C#. I also have a drop down list that selects the report that is needed and a case statement that gets the data.

Private Sub LoadReport()

    Try
        pnlReport.Visible = True

        Dim Dal As New DataAccess
        Dim objRptOutputData = New Model.RptClientCollection
        Dim lr As LocalReport = OutputReportViewer.LocalReport
        Dim rds As New ReportDataSource

        lr.DataSources.Clear()

        OutputReportViewer.Visible = True
        OutputReportViewer.ProcessingMode = ProcessingMode.Local
        OutputReportViewer.LocalReport.EnableHyperlinks = True

        Dim SelectedReport As Integer = 0

        If Me.ddlReport.SelectedItem.Value IsNot "" Then
            SelectedReport = Me.ddlReport.SelectedItem.Value
        End If

  Select Case SelectedReport
      Case ConstantEnum.Reports.ActiveWaitingList

        objRptOutputData = Dal.GetRptClientsByStatus(ConstantEnum.Status.ActiveWaitingList)
        lr.ReportPath = "Reporting\Report1.rdlc"
        rds.Name = "dsClient"
        rds.Value = objRptOutputData
        Me.lblCount.Text = "Count: " & objRptOutputData.Count
      Case ConstantEnum.Reports.InactiveWaitingList
        ' This is a small app I have about 15 case statements if it was bigger I would of done this selection a bit different. 

        End Select



        lr.DataSources.Add(rds)
        lr.Refresh()
        OutputReportViewer.DataBind()

    Catch ex As Exception
        ExceptionUtility.SendError(ex, "Reports", "LoadReport")
    End Try
End Sub