public int GetSupplierIdByAccessToken(string accessToken) { UserQuery userQuery = new UserQuery(language); System.Data.DataTable dataTable = conn_db.ReadTable(userQuery.GetSupplierIdByAccessToken(accessToken)); if (dataTable.Rows.Count > 0) { return(Convert.ToInt32(dataTable.Rows[0]["id"].ToString())); } else { return(-1); } }