c#中方法的默认参数
Default Parameters for method in c#
我有以下方法签名,我想为我的一个参数提供默认值,但我不想为另一个参数提供任何默认值
leadSourceStatus
protected PromotionCatalogResponseRootObject GetVideoPromotionCatalog(PromotionCatalogTypes catalogType = PromotionCatalogTypes.RESIDENTIAL, LeadSourceStatus leadSourceStatus)
但是当我尝试这样做时,出现错误
Optional parameters must appear after all required parameters
处理这个问题的最佳方法是什么?
最好的处理方法是按照它告诉你的去做,并将可选参数放在最后:
protected PromotionCatalogResponseRootObject GetVideoPromotionCatalog(LeadSourceStatus leadSourceStatus, PromotionCatalogTypes catalogType = PromotionCatalogTypes.RESIDENTIAL)
只需将可选参数放在最后,如错误消息所述
protected PromotionCatalogResponseRootObject GetVideoPromotionCatalog(LeadSourceStatus leadSourceStatus, PromotionCatalogTypes catalogType = PromotionCatalogTypes.RESIDENTIAL)
我有以下方法签名,我想为我的一个参数提供默认值,但我不想为另一个参数提供任何默认值
leadSourceStatus
protected PromotionCatalogResponseRootObject GetVideoPromotionCatalog(PromotionCatalogTypes catalogType = PromotionCatalogTypes.RESIDENTIAL, LeadSourceStatus leadSourceStatus)
但是当我尝试这样做时,出现错误
Optional parameters must appear after all required parameters
处理这个问题的最佳方法是什么?
最好的处理方法是按照它告诉你的去做,并将可选参数放在最后:
protected PromotionCatalogResponseRootObject GetVideoPromotionCatalog(LeadSourceStatus leadSourceStatus, PromotionCatalogTypes catalogType = PromotionCatalogTypes.RESIDENTIAL)
只需将可选参数放在最后,如错误消息所述
protected PromotionCatalogResponseRootObject GetVideoPromotionCatalog(LeadSourceStatus leadSourceStatus, PromotionCatalogTypes catalogType = PromotionCatalogTypes.RESIDENTIAL)