public List <string> GetMembers()
    {
        var gateway     = new DatabaseGateway();
        var transformer = new MemberRowTransformer();
        var result      = new List <string>();

        foreach (string i in gateway.RetrieveSqlAs("SELECT members FROM  dbo.tbl_Category", transformer))
        {
            result.Add(i);
        }

        return(result);
    }