如何使用 C# XDocument 读取 xml 文件?

how read a xml file with C# XDocument?

这是我的 XML:

<?xml version="1.0" encoding="utf-8"?>
<solidBodies>
  <body>
    <name>BLOCK(1)</name>
    <density>1200</density>
  </body>
  <body>
    <name>BLOCK(8)</name>
    <density>7927,81</density>
  </body>
  <body>
    <name>SPHERE(9)</name>
    <density>7192</density>
  </body>
</solidBodies>

这是我的代码:

private static void ReadSolidBodyPropertyXml(string solidPropertyXmlFilePath)
{
    XDocument xdoc = XDocument.Load(solidPropertyXmlFilePath);

    foreach(XElement node in xdoc.Root.Nodes())
    {
        string name = node.Attribute("name").Value;
        int density = Convert.ToInt32(node.Attribute("density").Value);
    }
}

问题:我正在尝试获取元素的值,但是我得到了 NullReferenceException for .Value。我做错了什么?

我添加我的解决方案:

private static void ReadSolidBodyPropertyXml(string solidPropertyXmlFilePath)
{
    XDocument xdoc = XDocument.Load(solidPropertyXmlFilePath);

    foreach(XElement node in xdoc.Root.Nodes())
    {
        string name = node.Element("name").Value;
        int density = Convert.ToInt32(node.Element("density").Value);
    }
}

您可以尝试使用 LINQ

var xdoc = XDocument.Load(XMLFile);

var items = from item in xdoc.Descendants("solidBodies").Elements("body")
            select new
            {
                name = item.Element("name").Value,
                density = item.Element("density").Value
            };

foreach (var item in items)
{
        Console.WriteLine($"{item.name} {item.density}");
}

输出

BLOCK(1) 1200
BLOCK(8) 7927,81
SPHERE(9) 7192