LogonServer Error

Question

I have created a simple report in Crystal Main Designer using ODBC.
I try to load the report in a C# windows form application.
See below code:
  FFileName = ReportFileName;
  FCrApplication = new CRAXDDRT.Application();
  FCrApplication.LogOnServer("crdb_odbc.dll", ".", "sgdb", "sa", "123");
Last instruction will raise an error:
"Failed to open the connection.
Details: IM002:[Microsoft][ODBC Driver Manager] Data source name not found and no default driver specified"
What wrong in my code?

Answer 1

I'm having the same problem but I'm not using Visual Studio or .NET so I can't use the new .NET SDK.
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I'm a Delphi coder and I'm using Crystal Reports v10 against a Cache database (Intersystems). Cache only has an ODBC driver and my goal is to eliminate the use of DSNs. I don't want to force my clients IT departments to have to push DSNs to hundreds of user PCs. In the Crystal Designer I can create an ODBC (RDO) connection that does not reference a DSN and it works.
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1. I click on Database | Set Datasource Location.<br>
2. In the Replace with tree I expand ODBC (RDO) and click Make New Connection.<br>
3. In the ODBC (RDO) Data Source Selection dialog box I click Enter Connection String and enter this:
Provider=MSDASQL.1;DRIVER=InterSystems ODBC;SERVER=DATA2;PORT=1972;DATABASE=DEV;PROTOCOL=TCP;STATIC CURSORS=1;UID=;PWD=<br>
4. Then I click Next and I get the Connection Information dialog. I leave the Server, User ID and Password fields blank. (Cache does not require a user id and password.)<br>
5. Then I click Finish and Crystal inserts a new connection node in the tree called DATA2. It looks like Crystal parsed the connection string and found uses the physical server name as the connection. I can update the tables in my report and run it in the Preview window and everything works great.
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OK, so I should be able to do the same thing in my Delphi application using LogonServer but no matter how many different ways I try to populate the parameters I keep getting the same error:
'Logon failed.Details: IM002:[Microsoft][ODBC Driver Manager] Data source name not found and no default driver specified'.
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Here's my Delphi code that calls LogonServer:
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Report := CRApp.OpenReport('C:\DEV\Reports\TestReport.rpt',crOpenReportByTempCopy);<br>
strConn := 'Provider=MSDASQL.1;DRIVER=InterSystems ODBC;SERVER=DATA2;PORT=1972;DATABASE=DEV;PROTOCOL=TCP;STATIC CURSORS=1;UID=;PWD=';
Report.Database.ConvertDatabaseDriver('CRDB_ODBC.DLL',True);<br>
Report.Database.LogOnServer('CRDB_ODBC.DLL',strconn,'','','');
<br><br>
I've tried this as well:<br>
Report.Database.LogOnServer('CRDB_ODBC.DLL',strconn,'DEV','','');<br>
But no luck there either.
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Is there anything anyone can offer to assist with this issue? I believe if it's possible to not use a DSN in the Crystal Designer, it has to be possible to do the same thing in code. I just need to know the proper parameters.
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By the way, I've also tried using LogonServerEx but no luck there either.
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Thanks.