XML 和 List 互轉類

XML 和 List 互轉類

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Xml;

namespace XmlHelper

{

    /// <summary>

    /// 實體轉Xml，Xml轉實體類

    /// </summary>

    /// <typeparam name="T"></typeparam>

    public class XmlHelper<T> where T : new()

    {

        #region 實體類轉成Xml

        /// <summary>

        /// 對象執行個體轉成xml

        /// </summary>

        /// <param name="item">對象執行個體</param>

        /// <returns></returns>

        public static string EntityToXml(T item)

        {

            IList<T> items = new List<T>();

            items.Add(item);

            return EntityToXml(items);

        }

        /// 對象執行個體集轉成xml

        /// <param name="items">對象執行個體集</param>

        public static string EntityToXml(IList<T> items)

            //建立XmlDocument文檔

            XmlDocument doc = new XmlDocument();

            //建立根元素

            XmlElement root = doc.CreateElement(typeof(T).Name + "s");

            //添加根元素的子元素集

            foreach (T item in items)

            {

                EntityToXml(doc, root, item);

            }

            //向XmlDocument文檔添加根元素

            doc.AppendChild(root);

            return doc.InnerXml;

        private static void EntityToXml(XmlDocument doc, XmlElement root, T item)

            //建立元素

            XmlElement xmlItem = doc.CreateElement(typeof(T).Name);

            //對象的屬性集

            System.Reflection.PropertyInfo[] propertyInfo =

            typeof(T).GetProperties(System.Reflection.BindingFlags.Public |

            System.Reflection.BindingFlags.Instance);

            foreach (System.Reflection.PropertyInfo pinfo in propertyInfo)

                if (pinfo != null)

                {

                    //對象屬性名稱

                    string name = pinfo.Name;

                    //對象屬性值

                    string value = String.Empty;

                    if (pinfo.GetValue(item, null) != null)

                        value = pinfo.GetValue(item, null).ToString();//擷取對象屬性值

                    //設定元素的屬性值

                    xmlItem.SetAttribute(name, value);

                }

            //向根添加子元素

            root.AppendChild(xmlItem);

        #endregion

        #region Xml轉成實體類

        /// Xml轉成對象執行個體

        /// <param name="xml">xml</param>

        public static T XmlToEntity(string xml)

            IList<T> items = XmlToEntityList(xml);

            if (items != null && items.Count > 0)

                return items[0];

            else return default(T);

        /// Xml轉成對象執行個體集

        public static IList<T> XmlToEntityList(string xml)

            try

                doc.LoadXml(xml);

            catch

                return null;

            if (doc.ChildNodes.Count != 1)

            if (doc.ChildNodes[0].Name.ToLower() != typeof(T).Name.ToLower() + "s")

            XmlNode node = doc.ChildNodes[0];

            foreach (XmlNode child in node.ChildNodes)

                if (child.Name.ToLower() == typeof(T).Name.ToLower())

                    items.Add(XmlNodeToEntity(child));

            return items;

        private static T XmlNodeToEntity(XmlNode node)

            T item = new T();

            if (node.NodeType == XmlNodeType.Element)

                XmlElement element = (XmlElement)node;

                System.Reflection.PropertyInfo[] propertyInfo =

                foreach (XmlAttribute attr in element.Attributes)

                    string attrName = attr.Name.ToLower();

                    string attrValue = attr.Value.ToString();

                    foreach (System.Reflection.PropertyInfo pinfo in propertyInfo)

                    {

                        if (pinfo != null)

                        {

                            string name = pinfo.Name.ToLower();

                            Type dbType = pinfo.PropertyType;

                            if (name == attrName)

                            {

                                if (String.IsNullOrEmpty(attrValue))

                                    continue;

                                switch (dbType.ToString())

                                {

                                    case "System.Int32":

                                        pinfo.SetValue(item, Convert.ToInt32(attrValue), null);

                                        break;

                                    case "System.Boolean":

                                        pinfo.SetValue(item, Convert.ToBoolean(attrValue), null);

                                    case "System.DateTime":

                                        pinfo.SetValue(item, Convert.ToDateTime(attrValue), null);

                                    case "System.Decimal":

                                        pinfo.SetValue(item, Convert.ToDecimal(attrValue), null);

                                    case "System.Double":

                                        pinfo.SetValue(item, Convert.ToDouble(attrValue), null);

                                    default:

                                        pinfo.SetValue(item, attrValue, null);

                                }

                                continue;

                            }

                        }

                    }

            return item;

    }

} 

XML轉List

List轉XML

Model轉XML

XML轉Model