Log on Failed error

Question

I've a report developed with DB2 9.7.5. It works fine in Crystal Report designer on my machine with local DB2 server with one of the database. It works fine from my ASP.NET application as long as I connect to same database. But if I chnage the database, I keep getting log on failed error. Then, if I change the report in crystal reports designer and connect to the other database and perform check dependencies, it starts working again.
The report is developed using couple of stored procedures and it has multiple subreports. I verified that the stored procedures are exactly same on other database and the userID to connect to both databases has exact same privileges.
Also, I get the same error when I try to connect another server with another copy of DB2 database. In this case, even if I use crystal reports designer to connect and save, it doesn't work.
Following is my code when I try to connect. The interesting thing is call to subreport.VerifyDatabase() works fine. But call to m_rpt.VerifyDatabase() throws exception.
ReportDocument m_rpt;
                if (m_rpt.Subreports != null && m_rpt.Subreports.Count > 0)
                    foreach (ReportDocument subrpt in m_rpt.Subreports)
                        foreach (CrystalDecisions.CrystalReports.Engine.Table tbl in subrpt.Database.Tables)
                            CrystalDecisions.Shared.TableLogOnInfo logInfo = tbl.LogOnInfo;
                            logInfo.ConnectionInfo.DatabaseName = m_strDBName;
                            logInfo.ConnectionInfo.ServerName = m_strDSN;
                            logInfo.ConnectionInfo.UserID = m_strDBUserID;
                            logInfo.ConnectionInfo.Password = m_strDBPassword;
                            tbl.ApplyLogOnInfo(logInfo);
                        subrpt.VerifyDatabase();
                foreach(CrystalDecisions.CrystalReports.Engine.Table tbl in m_rpt.Database.Tables)
                    CrystalDecisions.Shared.TableLogOnInfo logInfo = tbl.LogOnInfo;
                    logInfo.ConnectionInfo.DatabaseName = m_strDBName;
              logInfo.ConnectionInfo.ServerName = m_strDSN;
                    logInfo.ConnectionInfo.UserID = m_strDBUserID;
                    logInfo.ConnectionInfo.Password = m_strDBPassword;
              tbl.ApplyLogOnInfo(logInfo);
                m_rpt.VerifyDatabase();
Edited by: kushalkaleshwari on Mar 5, 2012 5:54 PM

Answer 1

Following is the exception:
-          excep     {"Log on failed."}     System.Exception {CrystalDecisions.CrystalReports.Engine.LogOnException}
+          [CrystalDecisions.CrystalReports.Engine.LogOnException]     {"Log on failed."}     CrystalDecisions.CrystalReports.Engine.LogOnException
+          Data     {System.Collections.ListDictionaryInternal}     System.Collections.IDictionary {System.Collections.ListDictionaryInternal}
          HelpLink     null     string
-          InnerException     {"\rNo error."}     System.Exception {System.Runtime.InteropServices.COMException}
+          [System.Runtime.InteropServices.COMException]     {"\rNo error."}     System.Runtime.InteropServices.COMException
+          Data     {System.Collections.ListDictionaryInternal}     System.Collections.IDictionary {System.Collections.ListDictionaryInternal}
          HelpLink     null     string
+          InnerException     null     System.Exception
          Message     "\rNo error."     string
          Source     "Analysis Server"     string
          StackTrace     "   at CrystalDecisions.ReportAppServer.ClientDoc.ReportClientDocumentClass.VerifyDatabase()\r\n   at CrystalDecisions.ReportAppServer.ReportClientDocumentWrapper.VerifyDatabase()\r\n   at CrystalDecisions.CrystalReports.Engine.ReportDocument.VerifyDatabase()"     string
-          TargetSite     {Void VerifyDatabase()}     System.Reflection.MethodBase {System.Reflection.RuntimeMethodInfo}
+          [System.Reflection.RuntimeMethodInfo]     {Void VerifyDatabase()}     System.Reflection.RuntimeMethodInfo
+          base     {Void VerifyDatabase()}     System.Reflection.MemberInfo {System.Reflection.RuntimeMethodInfo}
          Attributes     FamANDAssem | Family | Virtual | HideBySig | VtableLayoutMask     System.Reflection.MethodAttributes
          CallingConvention     Standard | HasThis     System.Reflection.CallingConventions
          ContainsGenericParameters     false     bool
          IsAbstract     false     bool
          IsAssembly     false     bool
          IsConstructor     false     bool
          IsFamily     false     bool
          IsFamilyAndAssembly     false     bool
          IsFamilyOrAssembly     false     bool
          IsFinal     false     bool
          IsGenericMethod     false     bool
          IsGenericMethodDefinition     false     bool
          IsHideBySig     true     bool
          IsPrivate     false     bool
          IsPublic     true     bool
          IsSecurityCritical     true     bool
          IsSecuritySafeCritical     true     bool
          IsSecurityTransparent     false     bool
          IsSpecialName     false     bool
          IsStatic     false     bool
          IsVirtual     true     bool
+          MethodHandle     {System.RuntimeMethodHandle}     System.RuntimeMethodHandle
+          Non-Public members          
+          Static members          
+          Non-Public members          
          Message     "Log on failed."     string
          Source     "CrystalDecisions.CrystalReports.Engine"     string
          StackTrace     "   at CrystalDecisions.CrystalReports.Engine.ReportDocument.VerifyDatabase()\r\n   at WebUtilLib.ReportCacher2.ApplyLogonInfo(String strDSN, String strDBName, String strDBUserID, String strDBPassword, String strDBType)"     string
+          TargetSite     {Void VerifyDatabase()}     System.Reflection.MethodBase {System.Reflection.RuntimeMethodInfo}
+          Static members          
+          Non-Public members