本人正在用C#做毕设,现在需要用C#语言实现在XML中删除节点
怎么写代码呢??谢谢大家!
怎么写代码呢??谢谢大家!
解决方案 »
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xmlDoc1.Load("ss.xml");
XmlNode root = xmlDoc1.SelectSingleNode("aa");
root.RemoveChild("bb");
bb是你要删除的节点,aa是bb的父节点
xmlDoc1.Save("ss.xml");
doc.Load(Server.MapPath("test.xml"));
XmlNodeList nodes;
XmlElement root = doc.DocumentElement;
nodes = root.SelectNodes("descendant::Table[EName='" + TextBox1.Text.Trim() + "']");
foreach (XmlNode node in nodes)
{
root.RemoveChild(node);
}
doc.Save(Server.MapPath("test.xml"));
Xml2.Document = doc;
<Students>
<Student>
<Name>ab</Name>
<Sex>帅哥</Sex>
<Address>江西</Address>
<Age>42</Age>
</Student>
<Student>
<Name>阿明</Name>
<Sex>帅哥</Sex>
<Address>安徽</Address>
<Age>24</Age>
</Student>
<Student>
<Name>小丽</Name>
<Sex>美女</Sex>
<Address>深圳</Address>
<Age>24</Age>
</Student>
</Students>//删除Age元素内容为24的Age元素节点。
static void XmlDeleteAgeNode()
{
XmlDocument doc = new XmlDocument();
doc.Load(@"c:\students.xml");
//doc.Load(Server.MapPath("students.xml"));
XmlNodeList xList = doc.SelectNodes("//Student/Age[text()='24']");
foreach (XmlNode node in xList)
{
node.ParentNode.RemoveChild(node);
}
doc.Save(@"c:\students1.xml");
//doc.Save(Server.MapPath("students.xml"));
}输出结果:
<Students>
<Student>
<Name>ab</Name>
<Sex>帅哥</Sex>
<Address>江西</Address>
<Age>42</Age>
</Student>
<Student>
<Name>阿明</Name>
<Sex>帅哥</Sex>
<Address>安徽</Address>
</Student>
<Student>
<Name>小丽</Name>
<Sex>美女</Sex>
<Address>深圳</Address>
</Student>
</Students>
<Sex>美女</Sex>
<Address>深圳</Address>
<Age>24</Age>
</Student>
</Students>//删除Age子元素内容为24的Student元素节点。
static void XmlDeleteAgeStudent()
{
XmlDocument doc = new XmlDocument();
doc.Load(@"c:\students.xml");
//doc.Load(Server.MapPath("students.xml"));
XmlNodeList xList = doc.SelectNodes("//Student[Age[text()='24']]");
foreach (XmlNode node in xList)
{
node.ParentNode.RemoveChild(node);
}
doc.Save(@"c:\students1.xml");
//doc.Save(Server.MapPath("students.xml"));
}输出结果:
<Students>
<Student>
<Name>ab</Name>
<Sex>帅哥</Sex>
<Address>江西</Address>
<Age>42</Age>
</Student>
</Students>
{
XmlDocument doc = new XmlDocument();
doc.Load(path);
XmlNode xn = doc.SelectSingleNode(node);
XmlElement xe = (XmlElement)xn;
if (attribute.Equals(""))
xn.ParentNode.RemoveChild(xn);
else
xe.RemoveAttribute(attribute);
doc.Save(path);
}
XmlNodeList xnl=doc.SelectSingleNode("").ChildNodes;
foreach(XmlNode xn in xnl)
{
XmlElement xe=(XmlElement)xn;
xe.RemoveAttribute(""); XmlNodeList nls=xe.ChildNodes;
foreach(XmlNode xn1 in nls)
{
XmlElement xe2=(XmlElement)xn1;
if(xe2.Name=="")
{
xe.RemoveChild(xe2);
}
}
}
doc.Save( Server.MapPath("") );