Message in Chinese (Simplified) (中文(简体))
由于基础集合可更改,因此 ItemCollection 无法为同步提供同步根。使用 ItemsControl.ItemsSource 或 ItemCollection.InnerList 为各自内部集合获取同步根。
Unlocalized message
ItemCollection cannot provide a sync root for synchronization because the underlying collection can be changed. Use ItemsControl.ItemsSource or ItemCollection.InnerList to get the sync root for the respective inner collections.
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