xml操作(三)添加xml节点的子节点(针对上节的改进)

一  改进的地方:

 增加了两个函数 AddNodeToXml 和AddChildNode ,增加的代码如下图:

二  显示效果

三 代码 

using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Threading.Tasks;using System.Xml;namespace CsharpConsoleApplication{    class Program    {        static void Main(string[] args)        {            int i = 0;            HOSPITAL hosp = new HOSPITAL() { HospId = 1, HospName ="中医院"};            hosp.listDept = new List<DEPT>();            hosp.listDept.Add(new DEPT() { DeptId = 101 , DeptName ="外科" ,DoctorNum = 16});            hosp.listDept.Add(new DEPT() { DeptId = 201, DeptName = "眼科", DoctorNum = 5 });            hosp.listDept.Add(new DEPT() { DeptId = 202, DeptName = "肾内科", DoctorNum = 11 });            XmlDocument xmlDoc = new XmlDocument();//创建xml文档对象            XmlDeclaration xmlDec = xmlDoc.CreateXmlDeclaration("1.0", "utf-8", null);//创建xml声明            xmlDoc.AppendChild(xmlDec);//将xml声明添加到xml文档对象            XmlElement xmlRoot = AddNodeToXml(xmlDoc,"HOSPITAL",""); //创建根节点            XmlElement xmlElem = AddChildNode(xmlRoot, "HOSPNAME", hosp.HospName); //创建医院名称节点            XmlElement xmlElemDepts = AddChildNode(xmlRoot, "DEPTS", "");  //创建科室节点                                            for (i = 0; i < hosp.listDept.Count; i++)            {                            XmlElement xmlElemDeptChild =  AddChildNode(xmlElemDepts, "DEPTS", "");               AddChildNode(xmlElemDeptChild, "DEPTNAME", hosp.listDept[i].DeptName);               AddChildNode(xmlElemDeptChild, "DEPTID", hosp.listDept[i].DeptId.ToString());               System.Console.WriteLine(hosp.listDept[i].DeptName);            }            xmlDoc.Save("gj.xml");            System.Console.ReadLine();        }        //向xml文档中添加节点        static XmlElement  AddNodeToXml(XmlDocument xmlDoc, string elementName, string innerText)        {           XmlElement xmlElem = xmlDoc.CreateElement(elementName);           if (!string.IsNullOrEmpty(innerText))           {               xmlElem.InnerText = innerText;           }           xmlDoc.AppendChild(xmlElem);           return xmlElem;        }        //向xml中的指定节点中添加子节点        static XmlElement AddChildNode(XmlElement parentNode , string elementName , string innerText)        {           XmlElement childNode =  parentNode.OwnerDocument.CreateElement(elementName);           if (!string.IsNullOrEmpty(innerText))           {               childNode.InnerText = innerText;           }           parentNode.AppendChild(childNode);           return childNode;        }    }    class HOSPITAL    {        public int HospId{get;set;}//医院编号        public string HospName{get;set;}//医院名字        public List<DEPT> listDept;//科室信息        public string Desc{get;set;}//医院描述信息    }    class DEPT    {        public int DeptId { get; set; }//科室id        public string DeptName { get; set; }//科室名字        public string Desc { get; set; }//描述信息        public int DoctorNum { get; set; }//医生人数    }}

四  为什么这样改?

用函数的封装性，减少重复代码，主要是对xml类提供的两个函数 CreateElement 和 AppendChild 的封装。