创建XML文件

创建XML文件的多种方法:(首先都要加上语句: using System.Xml;)

创建如下格式XML文件:

 

<?xml version="1.0" encoding="gb2312"?>
<bookstore>
  <book ISBN="2-3631-4" genre="fantasy">
    <title>C# Program</title>
    <author>Michael</author>
    <price>$49</price>
  </book>
</bookstore>

 

第一种方法:

 

private void button1_Click(object sender, System.EventArgs e)
        ...{
            XmlDocument xmlDoc = new XmlDocument();
            xmlDoc.LoadXml("<?xml version='1.0' encoding='gb2312'?>"+
                "<bookstore>"+
                "<book ISBN='2-3631-4' genre='fantasy'>"+
                "<title>C# Program</title>"+
                "<author>Michael</author>"+
                "<price>$49</price>"+
                "</book>"+
                "</bookstore>");
            xmlDoc.Save(@"D:MyTestMyTestinDebugXmlFiles ile1.xml");
        }

 

第二种方法:

 

private void button2_Click(object sender, System.EventArgs e)
        ...{
            XmlDocument xmlDoc = new XmlDocument();
            XmlText xmlText;
            //加入XML的声明段落
            XmlDeclaration xmlDecl = xmlDoc.CreateXmlDeclaration("1.0","gb2312","");
            xmlDoc.AppendChild(xmlDecl);
            //加入一个根元素
            XmlElement xmlElem = xmlDoc.CreateElement("","bookstore","");
            xmlDoc.AppendChild(xmlElem);
            //加入一个子元素
            XmlElement xmlElem1 = xmlDoc.CreateElement("","book","");
            //为子元素book增加两个属性
            xmlElem1.SetAttribute("ISBN","","2-3631-4");
            xmlElem1.SetAttribute("genre","","fantasy");
            xmlDoc.ChildNodes.Item(1).AppendChild(xmlElem1);
            //创建子元素的三个子元素
            XmlElement xmlElem2 = xmlDoc.CreateElement("","title","");
            //为子元素title增加文本
            xmlText = xmlDoc.CreateTextNode("C# Program");
            xmlElem2.AppendChild(xmlText);
            xmlDoc.ChildNodes.Item(1).AppendChild(xmlElem1).AppendChild(xmlElem2);
            XmlElement xmlElem3 = xmlDoc.CreateElement("","author","");
            xmlText = xmlDoc.CreateTextNode("Michael");
            xmlElem3.AppendChild(xmlText);
            xmlDoc.ChildNodes.Item(1).AppendChild(xmlElem1).AppendChild(xmlElem3);
            XmlElement xmlElem4 = xmlDoc.CreateElement("","price","");
            xmlText = xmlDoc.CreateTextNode("$49");
            xmlElem4.AppendChild(xmlText);
            xmlDoc.ChildNodes.Item(1).AppendChild(xmlElem1).AppendChild(xmlElem4);
            xmlDoc.Save(@"D:MyTestMyTestinDebugXmlFiles ile2.xml");
        }

 

第三种方法:

 

private void button3_Click(object sender, System.EventArgs e)
        ...{
            XmlDocument xmlDoc = new XmlDocument();
            //加入XML的声明段落
            XmlDeclaration xmlDecl = xmlDoc.CreateXmlDeclaration("1.0","gb2312","");
            xmlDoc.AppendChild(xmlDecl);
            //加入一个根元素
            XmlElement xmlElem = xmlDoc.CreateElement("","bookstore","");
            //xmlDoc.AppendChild(xmlElem);
            //
            //XmlNode xmlNode = xmlDoc.SelectSingleNode("bookstore");
            //加入一个子元素
            XmlElement xmlElem1 = xmlDoc.CreateElement("","book","");
            xmlElem1.SetAttribute("ISBN","","2-3631-4");
            xmlElem1.SetAttribute("genre","","fantasy");
            //创建子元素的三个子元素
            XmlElement xmlElem2 = xmlDoc.CreateElement("","title","");
            xmlElem2.InnerText = "C# Program";
            XmlElement xmlElem3 = xmlDoc.CreateElement("","author","");
            xmlElem3.InnerText = "Michael";
            XmlElement xmlElem4 = xmlDoc.CreateElement("","price","");
            xmlElem4.InnerText = "$49";
            xmlElem1.AppendChild(xmlElem2);
            xmlElem1.AppendChild(xmlElem3);
            xmlElem1.AppendChild(xmlElem4);
            //xmlNode.AppendChild(xmlElem1);
            xmlElem.AppendChild(xmlElem1);
            xmlDoc.AppendChild(xmlElem);
            xmlDoc.Save(@"D:MyTestMyTestinDebugXmlFiles ile3.xml");
        }

 

其实还可以变通方法的,但是细想都一样,只是写法不同,比如方法三中的注释语句可以替换其他的语句也可以实现.