Question

I have an asp.net nTier application. The data access layer is a strongly typed DataSet consisting of multiple DataTables with DataAdapters. When the user logs in, they choose which database to connect to (from a table in the membership database). I need to pass the selected connection string into the DataSet object which will remain the same for that users until they log in again.

I’m thinking that the answer might be to create a partial class of the DataSet object where I can pass the connection string into the constructor. Im not sure how to go about this though.

Cheers

Answer 1

You could do this with a partial class.

Assuming your typed dataset is called HurrDurr:

public partial class HurrDurr
{
  public HurrDurr(string connex)
  {    
    this._connection = new global::System.Data.SqlClient.SqlConnection();
    this._connection.ConnectionString = connex;
  }
}

_connection is only initialized if it is null the first time the Connection internal property is accessed.