Message in Chinese (Traditional) (中文(繁體))![](/img/flags/zh-Hant.png)
在 DataServiceCollection 上的 '<var>X</var>' 作業期間提供的值不是具有索引鍵的實體類型。
Unlocalized message![](/img/flags/en.png)
A value provided during '<var>X</var>' operation on DataServiceCollection is not of an entity type with key.
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