Message in Chinese (Traditional) (中文(繁體))
方法 'Single' 和 'SingleOrDefault' 只能當做最終查詢作業使用。在這個執行個體中請考慮改用方法 'FirstOrDefault'。
Unlocalized message
The methods 'Single' and 'SingleOrDefault' can only be used as a final query operation. Consider using the method 'FirstOrDefault' in this instance instead.
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