如何从XML查出数据,求出相同列的和,一同输入DataGirdView
--------------------编程问答--------------------var amount=Users.where(u=>u.name="xxx").Sum(u=>u.amount);
--------------------编程问答-------------------- 合计金额:
from x in xml.Descendants("user")
group x by x.Element("username").Value into g
select g.Sum(s=>Convert.ToDouble(s.Element("amount").Value))
补充:.NET技术 , LINQ