如何在C＃中使用WriteStartDocument WriteStartElement WriteAttributeString格式化XML？

Question

我想在這樣格式的XML：

<?xml version="1.0" encoding="UTF-8"?> 
<ftc:A xmlns="urn:oecd:ties:stfatypes:v1" xmlns:ftc="urn:oecd:ties:a:v1" xmlns:xsi="http://www.a.com/2001/XMLSchema-instance" version="1.1" xsi:schemaLocation="urn:oecd:ties:a:v1 aXML_v1.1.xsd"> 
    <ftc:b> 
     <z issuedBy = "s">1</z> 
     <x>CO</x> 
    </ftc:b> 
</ftc:A> 

我忘記了屬性issuedBy， 我有麻煩寫的屬性白衣方法：

writer.WriteStartDocument(); 
writer.WriteStartElement(); 
writer.WriteAttributeString(); 
writer.WriteElementString(); 

我只需要在C＃中的例子請:) :)

Answer 1

就像t3chb0t所說，像XDocument這樣的較新的類將使這更容易。但假設你需要使用XmlWriter，你可以這樣做：

const string rootNamespace = "urn:oecd:ties:stfatypes:v1"; 
const string ftcNamespace = "urn:oecd:ties:a:v1"; 
const string xsiNamespace = "http://www.a.com/2001/XMLSchema-instance"; 

var settings = new XmlWriterSettings 
{ 
    Indent = true, 
}; 

var sb = new StringBuilder(); 
using (var writer = XmlWriter.Create(sb, settings)) 
{ 
    writer.WriteStartDocument(); 
    writer.WriteStartElement("ftc", "A", ftcNamespace); 
    writer.WriteAttributeString("xmlns", "", null, rootNamespace); 
    writer.WriteAttributeString("xmlns", "ftc", null, ftcNamespace); 
    writer.WriteAttributeString("xmlns", "xsi", null, xsiNamespace); 
    writer.WriteAttributeString("version", "1.1"); 
    writer.WriteAttributeString("schemaLocation", xsiNamespace, "urn:oecd:ties:a:v1 aXML_v1.1.xsd"); 
    writer.WriteStartElement("b", ftcNamespace); 
    writer.WriteElementString("z", rootNamespace, "1"); 
    writer.WriteElementString("x", rootNamespace, "CO"); 
    writer.WriteEndElement(); 
    writer.WriteEndElement(); 
    writer.WriteEndDocument(); 
}