我知道如何基于一個列值從表中選擇一行，如下所示：var rowFeatureName = db.AfrRules.SingleOrDefault(r => r.FeatureName == FeatureName);但是，如何基于兩列來做相同的事情？
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largeQ
TA貢獻(xiàn)2039條經(jīng)驗 獲得超8個贊
嘗試做一個AND運算
var rowFeatureName = db.AfrRules.Where(r => r.FeatureName == FeatureName && r.FeatureName2 == FeatureName).FirstOrDefault();
或?qū)Υ诉M(jìn)行“或”運算
var rowFeatureName = db.AfrRules.Where(r => r.FeatureName == FeatureName || r.FeatureName2 == FeatureName).FirstOrDefault();
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