Modify datasource on reports

Question

I am pretty new to crystal reports. I have inherited around 500 crystal reports where the datasource location is a ODBC(RDO) but pointing to actual databaseserver and databasename. Properties on the datasource look as follows:
Database Tyoe: ODBC(RDO)
Server Name: XYZ
User ID : User
DataBase: XYZ
User DSN Default Properies: True
We recently moved to a new database server and the database name is also changed so we would like the datasource on the report to be like this:
Database Tyoe: ODBC(RDO)
Server Name: ABC
User ID : User
DataBase: NewDB
User DSN Default Properies: True
I used the code following code on all the rpt files to change the information. But when I open the report after running the script it is still showing the old database information.
report.Load(@"C:\Development\Crystal Test\report1.rpt");
// Change the server name and database in main reports
foreach (CrystalDecisions.Shared.IConnectionInfo connection in report.DataSourceConnections)
if ((String.Compare(connection.ServerName, "XYZ", true) == 0) &&
(String.Compare(connection.DatabaseName, "XYZ", true) == 0))
report.DataSourceConnections("XYZ", "XYZ").SetConnection(
"ABC", "NewDB", "User", "");
On further research I found that this will change on the temporary copy of the report but not on actual. Is there anyway to change the database information on all the of the 500 reports without doing manually? I really appreciate your help.
Also I am not sure if the original developer has used a DSN or the connection string in the datasource. Is there a way to know it or differentiate between various odbc(rdo) database types?
Thanks in advance

Answer 1

Let me see if I understood the question, you are wanting to change the connection within the rpt file so that when you open it later, you don't need to change it?  You would want to look at the ReportDocument.SaveAs method to make this change permanent.