How to pass Server (from parameter)and Sql Server Authentication Information (from table) in a report

I want to give business user option to select remote server , then based on that, it should retrieve the query result .

I have a table where i have stored server name, database ,sql server authentication user name and password information.

For passing Server as a  parameter , I'm using following expression:

="data source=" & Parameters!Login.Value & ";initial catalog=MyDatabase"

I don't know how to pass server authentication user and password information.

I would appreciate that if some one guide me.

Thanks in advance!

---

ZK