public T GetData <T>(IData_Factor infoFactor, string strTag, DateTime dtTime, typeTimeFrequency typeTimeFrequency = typeTimeFrequency.None) { IDataCache <T> dataCache = GetDataCache <T>(infoFactor, strTag, typeTimeFrequency); if (dataCache == null) { return(default(T)); } return(dataCache.GetData(dtTime)); }