考虑这个LINQ To SQL查询.它的目的是获取搜索词的字符串[]并将这些术语应用于SQL表上的一堆不同字段:
string[] searchTerms = new string[] {"hello","world","foo"};
List<Cust> = db.Custs.Where(c =>
searchTerms.Any(st => st.Equals(c.Email))
|| searchTerms.Any(st => st.Equals(c.FirstName))
|| searchTerms.Any(st => st.Equals(c.LastName))
|| searchTerms.Any(st => st.Equals(c.City))
|| searchTerms.Any(st => st.Equals(c.Postal))
|| searchTerms.Any(st => st.Equals(c.Phone))
|| searchTerms.Any(st => c.AddressLine1.Contains(st))
)
.ToList();
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提出了一个例外:
除Contains()运算符外,本地序列不能用于查询运算符的LINQ to SQL实现
问题: 为什么会引发此异常,以及如何重写查询以避免此异常?