c# - 如何在现有XML中添加子元素

我有一个问题我想在我现有的Xml中添加子元素
请帮我

最佳答案

我正在使用LINQ-to-XML，这对我来说似乎更容易，这就是我的方法

首先加载

        /// <summary>
        /// loads and returns the XML file with the given name
        /// </summary>
        /// <param name="modelHesapAdi"> name of the XML file to be returned</param>
        /// <returns>returns the xml of given model hesap adı</returns>
        public static XElement LoadXMLWithGivenModelHesapAdi(string modelHesapAdi, string xmlDirectory)
        {
            XElement modelsXmlFile = XElement.Load(xmlDirectory + modelHesapAdi + ".xml");

            return modelsXmlFile;
        }

在另一个方法中调用上述方法

        /// <summary>
        /// gets a roommessage nood from CreateRoomMessageXElement
        /// and adds it to the related room XML file and saves it
        /// </summary>
        /// <param name="modelHesapAdi">a string which has the name of the XML file to be changed</param>
        /// <param name="incomingMemberHesapAdi">a string to be inserted to the xml file, which has the members name</param>
        /// <param name="entranceTime"> a string for time, holds the member's entrance time</param>
        public void AddMemberNodeToRoomMembersXMLWithGivenModelHesapAdiAndUyeHesapAdi(string modelHesapAdi,
                                                                                      string incomingMemberHesapAdi,
                                                                                      string entranceTime)
        {
            XElement modelsXmlFile = BAL.Models.Model.LoadXMLWithGivenModelHesapAdi(modelHesapAdi, xmlDirectory);//loads the xml
            XElement roomMember = CreateRoomIncomingMemberXElement(incomingMemberHesapAdi, entranceTime);//creates child element and returns it
            modelsXmlFile.Add(roomMember);//adds the child element
            modelsXmlFile.Save(xmlDirectory + modelHesapAdi + ".xml");//saves the edited file
        }

用于子元素创建

        /// <summary>
        /// creates and returns roommessage nood
        /// </summary>
        /// <param name="memberHesapAdi">the sender of the message</param>
        /// <param name="message">sent message</param>
        /// <param name="timeSent">the time when the message was sent</param>
        /// <returns></returns>
        private XElement CreateRoomIncomingMemberXElement(string memberHesapAdi, string entranceTime)
        {
            XElement roomMessage = new XElement("RoomMember",
                                                            new XElement("MemberHesapAdi", memberHesapAdi),
                                                            new XElement("Time", entranceTime));
            return roomMessage;
        }

在CreateRoomIncomingMemberXElement方法中，您将根据需要创建自己的子元素，然后在AddMemberNodeToRoomMembersXMLWithGivenModelHesapAdiAndUyeHesapAdi中调用它并将其添加到加载的文件中，然后保存它。