XML and List Mutual transfer classes

usingSystem;usingSystem.Collections.Generic;usingSystem.Linq;usingSystem.Text;usingSystem.Xml;namespacexmlhelper{/// <summary>    ///entity to Xml,xml to entity class/// </summary>    /// <typeparam name= "T" ></typeparam>     Public classXmlhelper<t>whereT:New()    {        #regionThe entity class is turned into XML/// <summary>        ///The object instance is turned into XML/// </summary>        /// <param name= "Item" >Object Instance</param>        /// <returns></returns>         Public Static stringentitytoxml (T item) {IList<T> items =NewList<t>(); Items.            ADD (item); returnentitytoxml (items); }        /// <summary>        ///The object instance set goes into XML/// </summary>        /// <param name= "items" >Object Instance Set</param>        /// <returns></returns>         Public Static stringEntitytoxml (ilist<t>items) {            //Create a XmlDocument documentXmlDocument doc =NewXmlDocument (); //creating a root elementXmlElement root = Doc. CreateElement (typeof(T). Name +"s"); //Add a child element set of a root element            foreach(T Iteminchitems)            {Entitytoxml (doc, root, item); }            //add a root element to a XmlDocument documentDoc.            AppendChild (root); returnDoc.        INNERXML; }        Private Static voidEntitytoxml (XmlDocument doc, XmlElement root, T item) {//Creating ElementsXmlElement Xmlitem = doc. CreateElement (typeof(T).            Name); //object's property setsystem.reflection.propertyinfo[] PropertyInfo=typeof(T). GetProperties (System.Reflection.BindingFlags.Public |System.Reflection.BindingFlags.Instance); foreach(System.Reflection.PropertyInfo pinfoinchpropertyInfo) {                if(pinfo! =NULL)                {                    //object property name                    stringName =pinfo.                    Name; //object property Values                    stringValue =String.Empty; if(pinfo. GetValue (Item,NULL) !=NULL) Value= pinfo. GetValue (Item,NULL). ToString ();//Get object property value//set the attribute value of an elementXmlitem.setattribute (name, value); }            }            //adding child elements to the rootRoot.        AppendChild (Xmlitem); }        #endregion        #regionXML into entity classes/// <summary>        ///XML into an object instance/// </summary>        /// <param name= "xml" >XML</param>        /// <returns></returns>         Public StaticT xmltoentity (stringxml) {IList<T> items =xmltoentitylist (XML); if(Items! =NULL&& items. Count >0)                returnitems[0]; Else return default(T); }        /// <summary>        ///XML into object instance set/// </summary>        /// <param name= "xml" >XML</param>        /// <returns></returns>         Public StaticIlist<t> Xmltoentitylist (stringxml) {XmlDocument doc=NewXmlDocument (); Try{doc.            LOADXML (XML); }            Catch            {                return NULL; }            if(Doc. Childnodes.count! =1)                return NULL; if(Doc. childnodes[0]. Name.tolower ()! =typeof(T). Name.tolower () +"s")                return NULL; XmlNode node= Doc. childnodes[0]; IList<T> items =NewList<t>(); foreach(XmlNode Childinchnode. ChildNodes) {if(Child. Name.tolower () = =typeof(T). Name.tolower ()) items.            ADD (xmlnodetoentity (child)); }            returnitems; }        Private StaticT Xmlnodetoentity (XmlNode node) {T item=NewT (); if(node. NodeType = =xmlnodetype.element) {XmlElement Element=(XmlElement) node; System.reflection.propertyinfo[] PropertyInfo=typeof(T). GetProperties (System.Reflection.BindingFlags.Public |System.Reflection.BindingFlags.Instance); foreach(XmlAttribute attrinchelement. Attributes) {stringAttrname =attr.                    Name.tolower (); stringAttrValue =attr.                    Value.tostring (); foreach(System.Reflection.PropertyInfo pinfoinchpropertyInfo) {                        if(pinfo! =NULL)                        {                            stringName =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);  Break;  Case "System.DateTime": pinfo. SetValue (item, Convert.todatetime (AttrValue),NULL);  Break;  Case "System.Decimal": pinfo. SetValue (item, Convert.todecimal (AttrValue),NULL);  Break;  Case "System.Double": pinfo. SetValue (item, convert.todouble (AttrValue),NULL);  Break; default: pinfo. SetValue (item, AttrValue,NULL);  Break; }                                Continue; }                        }                    }                }            }            returnitem; }        #endregion    }

XML and List Mutual transfer classes