Message in Chinese (Traditional) (中文（繁體）)
項目無法加入至集合。如果 DataServiceCollection 中的項目是由 DataServiceContext 進行追蹤，則新項目必須先載入到集合中才可加入。
Unlocalized message
An item could not be added to the collection. When items in a DataServiceCollection are tracked by the DataServiceContext, new items cannot be added before items have been loaded into the collection.
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