ASP.NET XML读取、增加、修改和删除操作

1.xml文件格式如下：
<?xml version="1.0" encoding="utf-8"?>
<projects>
<project name="PlatformFramewo" vss-path="Platform$/Source CodHdt$Pla~1.sln" />
</projects>

1.读取
DataSet ds = new DataSet();
ds.ReadXml(Server.MapPath(@"Projects.xml"));
DataTable dt = ds.Tables[0];
return dt;
//得到的datable在前台进行循环输出，省略...
<tr style="font-weight: bold;"> //文字加粗
<td style="border-bottom: solid 2px gray;"> //文字底部加横线

2.新增
XmlDocument xmlDoc = new XmlDocument();
string Path = Server.MapPath(@"Projects.xml");
xmlDoc.Load(Path);
XmlNode root=xmlDoc.SelectSingleNode("projects");
XmlElement xe1 = xmlDoc.CreateElement("project");
xe1.SetAttribute("name", txtProjectName.Text);
strVssPath = txtProjectVss.Text + "$" + txtProjectPath.Text + "$" + txtProjectSln.Text;
xe1.SetAttribute("vss-path",strVssPath);
root.AppendChild(xe1);
xmlDoc.Save(Path);

3.修改
XmlDocument xmlDoc = new XmlDocument();
string Path = Server.MapPath(@"Projects.xml");
xmlDoc.Load(Path);
XmlNodeList nodelist = xmlDoc.SelectSingleNode("projects").ChildNodes;
foreach (XmlNode xn in nodelist)
{
XmlElement xe = (XmlElement)xn;
if (xe.GetAttribute("name") == Request["name"].ToString())
{
xe.SetAttribute("name", txtProjectName1.Text);
strVssPath = txtProjectVss1.Text + "$" + txtProjectPath1.Text + "$" + txtProjectSln1.Text;
xe.SetAttribute("vss-path", strVssPath);
xmlDoc.Save(Path);
}
}

4.删除
XmlDocument xmlDoc = new XmlDocument();
string Path = Server.MapPath(@"Projects.xml");
xmlDoc.Load(Path);
XmlNodeList nodelist = xmlDoc.SelectSingleNode("projects").ChildNodes;
foreach (XmlNode xn in nodelist)
{
XmlElement xe = (XmlElement)xn;
if (xe.GetAttribute("name") == Request["name"].ToString())
{
xn.ParentNode.RemoveChild(xn);
xmlDoc.Save(Path);
}
}