首页 / API 参考 / StockSharp.Fix.Native SecurityRequestResult StockSharp.Fix.Native 字段 InstrumentDataTemporarilyUnavailable : SecurityRequestResult InvalidOrUnsupportedRequest : SecurityRequestResult NoInstrumentsFoundThatMatchSelectionCriteria : SecurityRequestResult NotAuthorizedToRetrieveInstrumentData : SecurityRequestResult RequestForInstrumentDataNotSupported : SecurityRequestResult ValidRequest : SecurityRequestResult