XmlReader.ReadToFollowing方法

问题描述 投票:0回答:3

我正在尝试从xml文件中读取一些部分,但它只是先读取,为什么?

这是代码:

using (XmlReader reader = XmlReader.Create("settings.xml"))
{
     if(reader.ReadToFollowing("LastProcessingId"))
         Console.Write(reader.ReadElementContentAsInt());
     if(reader.ReadToFollowing("TotalNumberFolders"))
         Console.Write(reader.ReadElementContentAsInt());
     if(reader.ReadToFollowing("LastAccessTime"))
         Console.Write(reader.ReadElementContentAsDateTime());
}

似乎第二次调用reader.ReadToFollowing在调用此行Console.Write(reader.ReadElementContentAsInt());之后不起作用

xml文件是:

<Settings>
  <LastProcessingId>3</LastProcessingId>
  <TotalNumberFolders>20</TotalNumberFolders>
  <LastAccessTime>2014-05-06T00:00:00+04:00</LastAccessTime>
</Settings>
c# xml xml-parsing
3个回答
1
投票

这是为我工作的代码

using (XmlReader reader = XmlReader.Create("settings.xml"))
{
    reader.MoveToContent();
    while(reader.Read())
    {
        if (reader.NodeType == XmlNodeType.Element)
        {
            Console.WriteLine("{0}: ",reader.Name);
            // Next read will contain text.
            if (reader.Read()) Console.WriteLine("{0}: ", reader.Value);
        }                    
    }                
}

1
投票

一年过去了,但没有人真正回答OP的问题。 ReadToFollowing应该用于查找第一个节点然后使用ReadToNextSibling应该用作described here。例:

using (XmlReader reader = XmlReader.Create("books.xml")) {
    reader.ReadToFollowing("book");
    do {
       Console.WriteLine("ISBN: {0}", reader.GetAttribute("ISBN")); 
    } while (reader.ReadToNextSibling("book"));
}

-2
投票

读取所有节点使用:

            while (reader.Read())
            {

            }

但我使用Linq读取XML:

<customers>
  <customer id="84">
    <name value="Sample Name" />
  </customer>

  <customer id="89">
    <name value="Sample Name 2" />
  </customer>

  <customer id="80">
    <name value="Sample Name 3" />
  </customer>
</customers>

使用此代码:

XmlNode searched = null;
XmlDocument doc = new XmlDocument();
doc.Load(@"D:\Temporary\customers.xml");

foreach (XmlNode node in doc.SelectNodes("/customers/customer"))
{


}

要么

XElement main = XElement.Load(@"D:\Temporary\customers.xml");

            IEnumerable<XElement> searched =
                from c in main.Elements("customer")
                select c;
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