How to dermine a newly created record in RIA Services
Using WCF RIA Services, how is it possible to determine if a reco开发者_开发问答rd is newly created and attached to the domaincontext?
This was easy: checking the EntityState of the Entity!
Using WCF RIA Services, how is it possible to determine if a reco开发者_开发问答rd is newly created and attached to the domaincontext?
This was easy: checking the EntityState of the Entity!
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是否在对方手机上显示已读，是由用户自行设置的。依次打开iPhone的“设置-信息”，会有一个“发送已读回执”的选项。将其打开，对方就能看到你，是否已经阅读了本条iMessage信息。将其关闭，对方就看不到。
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