LogOnInfo非常慢

Question

    Private Shared Sub ApplyLogonToTables(ByVal objReport As ReportDocument)
        Dim con As New SqlConnection(ConnectionStringFactory.GetConnectionString(Main.LoggedInUser.Login_ProjectCode))

        Dim ConInfo As New CrystalDecisions.Shared.TableLogOnInfo
        Dim crTables As Tables = objReport.Database.Tables

        For Each crTable As Table In crTables
            With ConInfo.ConnectionInfo
                .ServerName = ConnectionStringFactory.ConnectionServer
                .DatabaseName =ConnectionStringFactory.ConnectionDBName
                .UserID = ConnectionStringFactory.ConnectionUserID
                .Password = ConnectionStringFactory.ConnectionPassword
            End With
            crTable.ApplyLogOnInfo(ConInfo)
        Next
    End Sub

以上代码在VS 2010的解决方案中运行良好所有项目都从VS2008转换为VS2010，但后来又在vs2010中添加了另一个项目，这个方法变得很慢 “Dim crTables As Tables = objReport.Database.Tables” 这条线大约需要60分钟。