Como llenar un combo c# Windows Mobile 6 sdf db

String full_path = System.Reflection.Assembly.GetCallingAssembly().GetName().CodeBase;String directory_path = full_path.Substring(0, full_path.LastIndexOf(“\”)); String sdfConnectionString = “Data Source=” + directory_path + “\colectoras.sdf“;SqlCeConnection conn = new SqlCeConnection( sdfConnectionString );conn.Open();SqlCeCommand cmd = new SqlCeCommand(“SELECT * FROM Usuario WHERE Habilitado = 1”, conn);SqlCeDataAdapter da = new SqlCeDataAdapter(cmd); DataTable dtUsu = new DataTable();da.Fill(dtUsu);cboUsuario.ValueMember = “Id”;cboUsuario.DisplayMember = “Nombre”;cboUsuario.DataSource = dtUsu;cboUsuario.SelectedIndex = -1;conn.Close();