Linq查询在where子句中使用字符串数组

Question

我有以下LINQ查询where子句，它没有返回预期的结果。 dtTemp row.Item(0)的值为"GE", "LE", "ST", "PL"，而Stkyard是包含一个或多个这些值的字符串数组。

我希望以下查询根据Stkyard中的条目过滤值，但返回的结果集包含dtTemp

中所有值的总和

dtQuery = (From row In dtTemp
           Group row By grp = 
           New With {Key .mth = row.Item(1), Key .mthdesc = row.Item(2)} Into Group, 
           val1 = Sum(Convert.ToDecimal(row.Item(3))), val2 = Sum(Convert.ToDecimal(row.Item(4)))
           Where Group.Any(Function(p) Stkyard.Contains(p.Item(0)))
           Select New With {grp.mth, grp.mthdesc, val1, val2}
           Distinct).ToList

任何帮助？

DonNetFiddle Example