37

我正在将一些数据写入 XML 文件...但是当我打开它时,所有值都在一行中...如何以可读格式编写它?即每个节点都在新行和缩进中?

FileStream fs = new FileStream("myfile.xml", FileMode.Create);

XmlWriter w = XmlWriter.Create(fs);

w.WriteStartDocument();
w.WriteStartElement("myfile");                 

w.WriteElementString("id", id.Text);
w.WriteElementString("date", dateTimePicker1.Text);
w.WriteElementString("version", ver.Text);
w.WriteEndElement();
w.WriteEndDocument();
w.Flush();
fs.Close();
4

6 回答 6

46

使用 aXmlTextWriter代替,XmlWriter然后设置Indentation属性。

例子

string filename = "MyFile.xml";

using (FileStream fileStream = new FileStream(filename, FileMode.Create))
using (StreamWriter sw = new StreamWriter(fileStream))
using (XmlTextWriter xmlWriter = new XmlTextWriter(sw))
{
  xmlWriter.Formatting = Formatting.Indented;
  xmlWriter.Indentation = 4;

  // ... Write elements
}

在@jumbo 评论之后,这也可以像在 .NET 2 中一样实现。

var filename = "MyFile.xml";
var settings = new XmlWriterSettings() 
{
    Indent = true,
    IndentChars = "    "
}

using (var w = XmlWriter.Create(filename, settings))
{
    // ... Write elements
}
于 2010-11-04T05:53:43.070 回答
34

您需要首先创建一个指定缩进的 XmlWriterSettings 对象,然后在创建 XmlWriter 时,在路径后传入 XmlWriterSettings。

此外,我使用该using块让 C# 处理我的资源的处置,这样我就不必担心在异常时丢失任何资源。

{
  XmlWriterSettings xmlWriterSettings = new XmlWriterSettings()
  {
    Indent = true,
    IndentChars = "\t",
    NewLineOnAttributes = true
  };

  using (XmlWriter w= XmlWriter.Create("myfile.xml", xmlWriterSettings))
  {
    w.WriteStartDocument();
    w.WriteStartElement("myfile");

    w.WriteElementString("id", id.Text);
    w.WriteElementString("date", dateTimePicker1.Text);
    w.WriteElementString("version", ver.Text);
    w.WriteEndElement();
    w.WriteEndDocument();
  }
}
于 2012-07-19T12:38:48.207 回答
7

检查设置属性:

w.Settings.Indent = true;

编辑:您不能直接设置它:

System.Xml.XmlWriter.Create("path", new System.Xml.XmlWriterSettings())
于 2010-11-04T05:51:40.403 回答
3

设置 XmlTextWriter 的 Formatting 属性:

TextWriter textWriter;
var xmlTextWriter = new XmlTextWriter(textWriter);
xmlTextWriter.Formatting = Formatting.Indented;
于 2010-11-04T05:51:48.083 回答
2

使用设置如下:

        XmlWriterSettings settings = new XmlWriterSettings();
        settings.Encoding = Encoding.UTF8;
        settings.Indent = true;

        using (MemoryStream memoryStream = new MemoryStream())
        using (XmlWriter xmlDoc = XmlWriter.Create(memoryStream, settings)){
         // logic here..
        }

这将使您到达您想要的位置,但是,您不必使用 MemoryStream,重要的部分是设置。

于 2014-04-30T06:57:28.383 回答
0

使用 XmlWriter 和 XmlWriterSettings 直接写入文件的小 VB.NET 版本:

Dim oSerializer As New XmlSerializer(GetType(MyType), New XmlRootAttribute("MyRootAttributeName"))
Using oXmlWriter As XmlWriter = XmlWriter.Create("MyFilePath", New XmlWriterSettings With {.Indent = True}) //Default encoding is utf-8
    oSerializer.Serialize(oXmlWriter, oInstanceOfMyType)
    oXmlWriter.Flush()
End Using

检查 doco 以获取其他设置和文件覆盖选项,但这很干净并且在很多情况下都可以按预期工作。

于 2017-04-04T19:23:44.170 回答