Change DSN connection at runtime in CR2010?

Hello,
I'm using CR2010 to attempt to run reports created in Crystal 8.0 using a DSN (MS Sql). This works fine if attempting to run a report that was created against the target DSN but if trying to change to a different DSN at runtime I get an error - "The table xxxx could not be found". I'm hoping to find solution that does not involve changing the actual reports as they are already distributed (currently run using COM). This probably doesn't help but when using the legacy COM method to run the reports, they work against a different DSN.
Currently, I create a new ConnectionInfo instance, set the server (DSN), db, user and password then Set and ApplyLogOnInfo for each Table - this does not seem to have any effect. I found some suggestions to try the following but this seems to just fail to connect at all as I end up with "The field name is not known":
Table.Location = connectionInfo.DatabaseName + ".dbo." + table.Location.Substring(table.Location.LastIndexOf(".") + 1);
Is there a way to connect to a different DSN, it will always be MS Sql, without having to update every customer report?
Thanks.

See if the KB [1553921 - Is there a utility that would help in writing database logon code?|http://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/oss_notes_boj/sdn_oss_boj_bi/sap(bD1lbiZjPTAwMQ==)/bc/bsp/spn/scn_bosap/notes%7B6163636573733d36393736354636443646363436353344333933393338323636393736354637333631373036453646373436353733354636453735364436323635373233443330333033303331333533353333333933323331%7D.do] will help.
Ludek
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Changing database connection at runtime

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Hi Kajal,
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If you want to change connections, you first have to logout. Besides the logon_screen builtin does not change the connection, but it only sets several application properties.
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MyPassword VARCHAR2(40);
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begin
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Set password for database connection at runtime

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Automatically create ODBC DSN connection with special port and password. Add-OdbcDsn cmdlet

Hi,
I first posted a question in the SQL forum but I'm posting it here instead because its a Powershell question.
In a non-persitent VDI enviroment we are trying to automatically create a ODBC DSN connection to a SQL server.
We are using Windows 8.1 so we also have Powershell 4 together with the add-odbcdsn cmdlet.
But when trying to add set -SetPropertyValue for network port different than default and a password we get an error.
here is the command:
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and here is the error message:
Add-OdbcDsn : Attempt to set the {UID or PWD} key of a DSN. These keys should not be stored in the registry for securit
y reason. Provide the credential information at runtime via SQLDriverConnect, SQLConnect or SQLBrowseConnect.
At line:1 char:1
+ Add-OdbcDsn -Name test -DriverName "SQL Server" -DsnType User -SetPropertyValue @ ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : InvalidArgument: (MSFT_OdbcDsnTask:Root/Microsoft/...SFT_OdbcDsnTask) [Add-OdbcDsn], Cim
Exception
+ FullyQualifiedErrorId : MI RESULT 4,Add-OdbcDsn
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Hi Primeid,
Agree with Jrv, we cannot store UID and PWD in an ODBC datasource, For example, you can create a DSN using the user interface but if you look at the DSN stored in the registry the UID and PWD are not stored.
ODBC it is always required when you connect using a DSN that the caller supply UID and PWD if they want to use standard login during connection time.
These similar discussion are for your reference:
Creating ODBC DSN for SQL Native
Client fails for not-integrated authentication
is user name and password required in ODBC admin / User DSN?
In addition, to read data from a SQL Server database using an ODBC DSN with SQL Authentication via powershell, please refer to this script:
Open SQL database with ODBC DSN and SQL AuthenticationIf
there is anything else regarding this issue, please feel free to post back.
If you have any feedback on our support, please click here.
Best Regards,
Anna Wang
TechNet Community Support
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Nuno

In Forms I used the following code to change the user at runtime. I created 3 char fields 'u','p' and 'c' for username, password and connect string respectively.
declare
uname varchar2(10);
begin
uname := get_application_property(username);
-- To display your current username
message(uname);
pause;
logout;
logon(:u,:p| |'@'| |:c);
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Abhijith Unnikannan,
Oracle Support Services

Issue with changing database location at runtime

I am having a similar issue to:
Re: Issue with changing database location at runtime
where I am using Crystal Reports 2008 SP 3 fix pack 3.3 and a OLE DB connection to a SQL 2008 R2 server. Running on a computer on the network where the report can see the original development server is fast, other computers where that server is not available are hanging 20 seconds before coming up.
I am using the same code from the Crystal Sample app to change the connection on each table. I found that the slowness comes the first time the ReportDocument object is accessed to get the collection of database tables, before the connection info is set.
Fix pack 3.4 was mentioned in that post. Does fix pack 3.4 fix that issue? I don't see fix pack 3.4 on the downloads page (https://websmp130.sap-ag.de/sap%28bD1lbiZjPTAwMQ==%29/bc/bsp/spn/bobj_download/main.htm)

I just found on the reports that were having the issue there was a SQL Expression. Per this thread:
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Cannot Change Table Location, but Only for One Report
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Unable to overwrite the ODBC connection in runtime

Hi,
I have a VS2008 application which is using CR2008. Problem is I am not able to change the ODBC connection in runtime to any server other than the one that was used to create the report
We are using infoobject model to retrive the report form CMC.
Couple of thing I tried.
First One:
ConnectionInfo objConnectionInfo = new ConnectionInfo();
               objConnectionInfo.ServerName = "Server Name";
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               objConnectionInfo.AllowCustomConnection = true;
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Second One:
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Above methods I tries but I am unable to change my connection string,Some one please advise on this.

Make sure you have SP 2:
https://smpdl.sap-ag.de/~sapidp/012002523100009038092009E/cr2008win_sp2.exe
Try one of our sample apps:
https://wiki.sdn.sap.com/wiki/display/BOBJ/CrystalReportsfor.NETSDK+Samples
recommend vbnet_win_dbengine
Do this with a report that has no subreports 1st.
In your code samples, you are trying to use integrated security in one, not in the other. Is the report designed with Integrated security or not? Re. integrated security, see [this|https://www.sdn.sap.com/irj/scn/go/portal/prtroot/docs/library/uuid/b021e47e-be1d-2b10-c6b2-efa9db3abd6b] article.
Ludek
Follow us on Twitter http://twitter.com/SAPCRNetSup

Different database connections at runtime

How can I change different database connections at runtime on the same Application Module ?
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Does anyone know how to do this?
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Looking forward to hearing good news.....

Change DSN connection at runtime in CR2010?

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