C#通过XML节点属性/属性值读取写入XML操作代码实例

1.xml的内容如下：

<?xml version="1.0" encoding="utf-8" ?>
<root>
  <title>
    <settings id = "0" name = "显示文字">欢迎您！智慧服务，互动体验......</settings>
    <settings id = "1" name = "字体">微软雅黑</settings>
    <settings id = "2" name = "颜色">yellow</settings>
    <settings id = "3" name = "字体尺寸">48</settings>
  </title>
  <menu>
    <submu id="0" name="部门分布"/>
    <submu id="1" name="宣传视频"/>
    <submu id="2" name="部门宣传"/>
    <submu id="3" name="会议安排"/>
  </menu>
  <mu1>
    <submu id = "0" name = "icentroview产品">
      <video id = "0">videos/icv.mp4</video>
    </submu>
    <submu id = "1" name = "员工社区">
      <video id = "0">videos/ygsqxcp.mp4</video>
    </submu>
    <submu id = "2" name = "三维展示">
      <video id = "0">videos/ibaosight.mp4</video>
    </submu>
    <submu id = "1" name = "好生活宣传">
      <video id = "0">videos/goodlift.mp4</video>
    </submu>
  </mu1>
  <main>picture/main.jpg</main>
</root>

2.获得xml文档

private static string url = appdomain.currentdomain.setupinformation.applicationbase+"config\\config.xml";
        private  xmldocument xmldoc;
        private xmlnode root;
        public static string title;
        public  xmlhandler()
        {
            xmldoc = new xmldocument();
            loadconfig();
        }

        private  void loadconfig()
        {
            try
            {
                xmldoc.load(url);
                root = xmldoc.selectsinglenode("root");
            }
            catch (exception e)
            {
                throw e;
            }
        }

3.通过属性名称读取xml节点中的内容

public titlemodel gettitle()
        {
            try
            {
                titlemodel title = new titlemodel();
                xmlnode node = root.firstchild;
                if(node!=null)
                {
                    foreach (xmlnode nd in node.childnodes)
                    {
                        xmlelement element = (xmlelement)nd;
                        if (element.getattribute("name") == "显示文字")
                        {
                            title.title = nd.innertext;
                        }
                        else if (element.getattribute("name") == "字体尺寸")
                        {
                            title.fontsize = convert.toint32(nd.innertext);
                        }
                        else if (element.getattribute("name") == "颜色")
                        {
                            title.fontcolor = fontcolor(nd.innertext);
                        }
                        else if (element.getattribute("name") == "字体")
                        {
                            title.fontfamily = nd.innertext;
                        }
                    }
                }
                return title;       
            }
            catch (exception e)
            {       
                throw e;
            }

        }

4.通过属性读取xml中节点的属性值

public list<string> getmenustring()
        {
            try
            {
                list<string> list=new list<string>();
                xmlnode menu = root.childnodes[1];
                if (menu != null)
                {
                    foreach (xmlnode node in menu.childnodes)
                    {
                        xmlelement element = (xmlelement)node;
                        list.add(element.getattribute("name"));
                    }
                }
                return list;
            }
            catch (exception e)
            {
                throw e;
            }
        }

5.通过节点获取xml节点中的内容

public string getmainbackground()
        {
            string url ="images/mainjpg";
            try
            {
                xmlnode node = root.lastchild;
                if (node != null)
                {
                    url =  node.innertext;
                }
                return url;
            }
            catch (exception e)
            {
                throw e;
            }

        }