>            // Query using parameters
>            //IDbDataParameter param1 = this.CreateParameter("@Category", category);
>            //IDbDataParameter param2 = this.CreateParameter("@Did", dId);
>            //this.GetDataSet("SELECT * FROM Personnel WHERE Category = " + param1 + " AND Diocese = " + param2);


You don't add the parameter to the SQL like that. Try this:

<pre>
this.GetDataSet("SELECT * FROM Personnel WHERE Category = @Category AND Diocese = @Did", param1, param1);