我的XML看起来像这样:
<Bank>
<Customer id="0">
<FName>Adam</FName>
<LName>Kruz</LName>
<Accounts>
<Account id="0" money="1500" />
<Account id="1" money="6500" />
<Account id="2" money="0" />
</Accounts>
</Customer>
<Customer id="1">
<FName>Benny</FName>
<LName>Thoman</LName>
<Accounts>
<Account id="0" money="3200" />
</Accounts>
</Customer>
</Bank>
我正在尝试使用此代码,但没有成功
XDocument document = XDocument.Load("database.xml");
XElement root = document.Root;
root.Elements("Customer")
.Where(e => e.Attribute("id").Value.Equals(customerID.ToString())).Select(e => e.Descendants("Account")
.Where(f => f.Attribute("id").Value.Equals(this.id.ToString())).Select(f => f.Attribute("id")).First().SetValue(money.ToString()));
document.Save("database.xml");
我收到了错误消息: 无法从用法推断出方法'System.Linq.Enumerable.Select(System.Collections.Generic.IEnumerable,System.Func)'的类型参数。尝试明确指定类型参数。
请告诉我如何编辑元素(Account)子树(Accounts)中的属性,非常感谢:(
答案 0 :(得分:0)
试试这个:
var query =
from c in document.Root.Elements("Customer")
where c.Attribute("id").Value == customerID.ToString()
from a in c.Element("Accounts").Elements("Account")
where a.Attribute("id").Value == this.id.ToString()
select a;
query
.First()
.Attribute("money")
.SetValue(money.ToString());