Programmatically set the datasource for a Crystal Report on a Crystal Server via Crystal Web Services

Question

How can I change the data source (database server, username, password) that a Crystal report uses at runtime, running within a crystal server?

I have a crystal server and have uploaded reports that have a set datasource (SQL Server 2005 hosted on SERVER A, userA, passwordA). I would like to schedule reports to run using a different datasource (SQL Server 2005 hosted on SERVER B, userB, passwordB) from the c# client I've written.

The c# client can schedule reports to run within the server using objects provided by the crystal webservices. I've been using the following 3 objects:

BIPlatform
InfoObject
CrystalReport

Documentation on these objects can be found HERE

Answer 1

1/30/2018 -Just wanted to add that you will need the CrystalDecisions.ReportAppServer.DataDefModel dll

I had the same problem, where i have a report that has MSAccess database connection and i needed to change that to SQLServer, it took 2 days to figure this out:

            reportDocument = new ReportDocument();
            reportDocument.Load(reportFileName);
            TableLogOnInfo tableLogOnInfo = ReportClass.GetSQLTableLogOnInfo(connectionProperties.DatabaseSource, connectionProperties.DatabaseName, connectionProperties.UserName, connectionProperties.Password);
            for (int i = 0; i < reportDocument.Database.Tables.Count; i++)
            {
                Table table = reportDocument.Database.Tables[i];
                table.ApplyLogOnInfo(tableLogOnInfo);
            }

     public static ConnectionInfo GetConnectionInfo(string serverName, string         databaseName, string userID, string password)
    {
        ConnectionInfo connectionInfo = new ConnectionInfo();
        connectionInfo.ServerName = serverName;
        connectionInfo.DatabaseName = databaseName;
        connectionInfo.UserID = userID;
        connectionInfo.Password = password;
        return connectionInfo;
    }

    public static TableLogOnInfo GetSQLTableLogOnInfo(string serverName, string databaseName, string userID, string password)
    {
        CrystalDecisions.ReportAppServer.DataDefModel.PropertyBag connectionAttributes = new CrystalDecisions.ReportAppServer.DataDefModel.PropertyBag();
        connectionAttributes.EnsureCapacity(11);
        connectionAttributes.Add("Connect Timeout", "15");
        connectionAttributes.Add("Data Source", serverName);
        connectionAttributes.Add("General Timeout", "0");
        connectionAttributes.Add("Initial Catalog", databaseName);
        connectionAttributes.Add("Integrated Security", false);
        connectionAttributes.Add("Locale Identifier", "1033");
        connectionAttributes.Add("OLE DB Services", "-5");
        connectionAttributes.Add("Provider", "SQLOLEDB");
        connectionAttributes.Add("Tag with column collation when possible", "0");
        connectionAttributes.Add("Use DSN Default Properties", false);
        connectionAttributes.Add("Use Encryption for Data", "0");

        DbConnectionAttributes attributes = new DbConnectionAttributes();
        attributes.Collection.Add(new NameValuePair2("Database DLL", "crdb_ado.dll"));
        attributes.Collection.Add(new NameValuePair2("QE_DatabaseName", databaseName));
        attributes.Collection.Add(new NameValuePair2("QE_DatabaseType", "OLE DB (ADO)"));
        attributes.Collection.Add(new NameValuePair2("QE_LogonProperties", connectionAttributes));
        attributes.Collection.Add(new NameValuePair2("QE_ServerDescription", serverName));
        attributes.Collection.Add(new NameValuePair2("SSO Enabled", false));

        ConnectionInfo connectionInfo = ReportClass.GetConnectionInfo(serverName, databaseName, userID, password);
        connectionInfo.Attributes = attributes;
        connectionInfo.Type = ConnectionInfoType.SQL;

        TableLogOnInfo tableLogOnInfo = new TableLogOnInfo();
        tableLogOnInfo.ConnectionInfo = connectionInfo;
        return tableLogOnInfo;
    }