C# C中XMLwriter的缩进和新行命令#
我正在将一些数据写入XML文件…但当我打开它时,所有的值都在一行中…如何以可读的格式写入它?即每一个节点都在新行和缩进中C# C中XMLwriter的缩进和新行命令#,c#,xml,xmlwriter,C#,Xml,Xmlwriter,我正在将一些数据写入XML文件…但当我打开它时,所有的值都在一行中…如何以可读的格式写入它?即每一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.WriteElementS
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();
检查设置属性:
w.Settings.Indent = true;
编辑:不能直接设置:
System.Xml.XmlWriter.Create("path", new System.Xml.XmlWriterSettings())
设置XmlTextWriter的格式化属性:
TextWriter textWriter;
var xmlTextWriter = new XmlTextWriter(textWriter);
xmlTextWriter.Formatting = Formatting.Indented;
使用
XmlTextWriter
而不是XmlWriter
,然后设置缩进
属性
示例
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 comment之后,这也可以像.NET2一样实现
var filename = "MyFile.xml";
var settings = new XmlWriterSettings()
{
Indent = true,
IndentChars = " "
}
using (var w = XmlWriter.Create(filename, settings))
{
// ... Write elements
}
首先需要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
using
块让C#处理我的资源处置,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();
}
}
使用如下设置:
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..
}
这将使您达到您想要的目的,但是,您不必使用MemoryStream,重要的部分是设置。使用XmlWriter plus XmlWriterSettings direct to file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
检查文档中的其他设置和文件覆盖选项,但这是干净的,在许多情况下都能正常工作。例外情况:“XmlWriterSettings.Indent”属性是只读的,无法设置。我的错误是,您需要使用“Create”方法并直接传递它;更新了答案。但如果需要,则无法设置XmlSettings属性使用XmlTextWriter(自.Net2.0)。有关更多信息,请参阅。从技术上讲,将“
Indent
”设置为true就是让Xml(Text?)编写器发出新行所需的全部内容。此“格式化
”属性在.NET(或汇编?)的哪个版本中?我的解决方案以4.5.1为目标,不知道Xml(Text?)Writer
上的任何“Formatting
”属性。自.net 2.0以来,XmlTextWriter一直被弃用