Re: Database connecor error:'' Failed to Retrieve data from the database

I can't say for sure. All I now is MS has limited support for MDAC DB drivers.

Have you tried creating a new report based on that SP? Could be the files are partially corrupted.

Download the trial version of CR 2013 and install it on a different PC than what you are Developing on, there may be version issue if you do.

And the Assembly version is always the same. You can browse the \Windows\assembly folder or search for crpe32.dll or add this to your app to get the dll version:

Public frmMain()

foreach (Assembly MyVerison in AppDomain.CurrentDomain.GetAssemblies())
{
    if (MyVerison.FullName.Substring(0, 38) == "CrystalDecisions.CrystalReports.Engine")
    {
        //File:             C:\Windows\assembly\GAC_MSIL\CrystalDecisions.CrystalReports.Engine\13.0.2000.0__692fbea5521e1304\CrystalDecisions.CrystalReports.Engine.dll
        //InternalName:     Crystal Reports
        //OriginalFilename:
        //FileVersion:      13.0.9.1312
        //FileDescription:  Crystal Reports
        //Product:          SBOP Crystal Reports
        //ProductVersion:   13.0.9.1312
        //Debug:            False
        //Patched:          False
        //PreRelease:       False
        //PrivateBuild:     False
        //SpecialBuild:     False
        //Language:         English (United States)

        System.Diagnostics.FileVersionInfo fileVersionInfo = System.Diagnostics.FileVersionInfo.GetVersionInfo(MyVerison.Location);
        txtRuntimeVersion.Text += fileVersionInfo.FileVersion.ToString();
        // check if CrsytalDecisions.Enterprise dll's can be loaded ( Anything but Cortez - managed reporting )
        if (fileVersionInfo.FileVersion.Substring(0, 2) == "13")
        {
            btnRasOpen.Enabled = false;
        }
        CRVer = fileVersionInfo.FileVersion.Substring(0, 2);
        return;
    }
}

//VB code
//Imports CrystalDecisions.CrystalReports.Engine
//Imports CrystalDecisions.Shared
//Imports System.Reflection
//Imports System.Runtime.InteropServices

//Public Class Form1

//    Private Sub CrystalReportViewer1_Load(sender As Object, e As EventArgs) Handles CrystalReportViewer1.Load

//        For Each MyVerison As Assembly In AppDomain.CurrentDomain.GetAssemblies()
//            If MyVerison.FullName.Substring(0, 38) = "CrystalDecisions.CrystalReports.Engine" Then
//                'File:             C:\Windows\assembly\GAC_MSIL\CrystalDecisions.CrystalReports.Engine\13.0.2000.0__692fbea5521e1304\CrystalDecisions.CrystalReports.Engine.dll
//                'InternalName:     Crystal Reports
//                'OriginalFilename:
//                'FileVersion:      13.0.9.1312
//                'FileDescription:  Crystal Reports
//                'Product:          SBOP Crystal Reports
//                'ProductVersion:   13.0.9.1312
//                'Debug:            False
//                'Patched:          False
//                'PreRelease:       False
//                'PrivateBuild:     False
//                'SpecialBuild:     False
//                'Language:         English (United States)

//                Dim fileVersionInfo As System.Diagnostics.FileVersionInfo = System.Diagnostics.FileVersionInfo.GetVersionInfo(MyVerison.Location)
//                MessageBox.Show(fileVersionInfo.FileVersion.ToString())

//                Return
//            End If
//        Next

//        Dim Report As New CrystalDecisions.CrystalReports.Engine.ReportDocument
//        Report.Load("C:\reports\formulas.rpt")
//        CrystalReportViewer1.ReportSource = Report
//    End Sub

//End Class

//
// TODO: Add any constructor code after InitializeComponent call
//
}