Crystal Report : Database logon failed

See more:

C#

SQL-Server

C#4.0

, +

In my Project I am trying to open a Crystal report after writing the Dataset values to the XML file, but after loading the Report when I try to open it throws the Exception Database Logon Failed

I had tried with the following code,

protected void getpkeys_Click(object sender, EventArgs e)
{
    try
    {

        ReportDocument rpt = new ReportDocument();
        DataSet ds = Namespace.SP.Storedprocedure_Select().GetDataSet();

        if (ds.Tables[0].Rows.Count > 0)
        {

                        ds.WriteXml(Server.MapPath("~/XMLReports/Passkeys.xml"));
            string filename = Server.MapPath("~/Path/Upload/Pkey_rpt.rpt");
            rpt.Load(filename);
            rpt.SetDataSource(ds);
            rpt.ExportToHttpResponse(CrystalDecisions.Shared.ExportFormatType.PortableDocFormat, Response, true, "ExportedReport");

        }
    }
    catch (Exception ex)
    {
        ClientMessaging(ex.Message);
    }
}