C#从XML加载字典

Question

我有一个XML文件,看起来像:

<Cities>
    <Name>Seattle</Name>
    <State>WA</State>
    <Population>552105</Population>
</Cities>

我想将城市信息加载到字典中,以便我的字典看起来像:

cityDictionary("Name") = "Seattle"
cityDictionary("State") = "WA"
cityDictionary("Population") = "552105"

以下代码确实有效:

var doc = XDocument.Load(@"..\..\Cities.xml");
var rootNodes = doc.Root.DescendantNodes().OfType<XElement>();
var keyValuePairs = from n in rootNodes
                    select new
                    {
                        TagName = n.Name,
                        TagValue = n.Value
                    };

Dicitionary<string, string> allItems = new Dictionary<string, string>();
foreach (var token in keyValuePairs) {
    allItems.Add(token.TagName.ToString(), token.TagValue.ToString());
}

但我想一步到位.

有什么建议？

Answer 1

为什么这么复杂？以下是如何在方法链语法中执行此操作:

var allItems = rootNodes.ToDictionary(n => n.Name.ToString(), n => n.Value);

或者只是作为一个普通的旧循环,如果你需要使用旧版本的C#或者希望保持老式:

var allItems = new Dictionary<string, string>();
foreach (var node in rootNodes)
{
    allItems.Add(node.Name.ToString(), node.Value);
}

Answer 2

试试这个 ToDictionary.

    Dictionary<string, string> allItems = rootNodes.ToDictionary(v => v.Name, v => v.Value);