Default Parameters for method in c#

Question

I have the following method signature where I want to give a default value to one of my parameters but I dont want to give any default value to the other parameter leadSourceStatus

protected PromotionCatalogResponseRootObject GetVideoPromotionCatalog(PromotionCatalogTypes catalogType = PromotionCatalogTypes.RESIDENTIAL, LeadSourceStatus leadSourceStatus)

But when I try this, I get error

Optional parameters must appear after all required parameters

What will be the best way to deal with this?

Answer 1

处理它的最好方法是按照它告诉您的操作进行操作，并在最后放置可选参数：

protected PromotionCatalogResponseRootObject GetVideoPromotionCatalog(LeadSourceStatus leadSourceStatus, PromotionCatalogTypes catalogType = PromotionCatalogTypes.RESIDENTIAL)

Answer 2

只需将可选参数放在结尾，然后出现错误消息

protected PromotionCatalogResponseRootObject GetVideoPromotionCatalog(LeadSourceStatus leadSourceStatus, PromotionCatalogTypes catalogType = PromotionCatalogTypes.RESIDENTIAL)