Message in Chinese (Traditional) (中文(繁體))![](/img/flags/zh-Hant.png)
MC3023: Key 屬性只能用於包含在 Dictionary (例如 ResourceDictionary) 中的標記上。
Unlocalized message![](/img/flags/en.png)
MC3023: The Key attribute can only be used on a tag contained in a Dictionary (such as a ResourceDictionary).
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