第一个web程序总结

using System;

using System.Collections.Generic;

using System.Linq;

using System.Web;

using System.Web.UI;

using System.Web.UI.WebControls;

using System.Xml;

using WebApplication5;

using System.Data;

namespace Employee1

{

    public partial class employ : System.Web.UI.Page

    {
        string xmlPath = @"C:\Users\v-shhu\Documents\Visual Studio 2013\Projects\Employee1\Employee1\employee.xml";

        public void Update()

        {

            List<Partner> partnerList = new List<Partner>();
            XmlDocument xmlDoc = new XmlDocument();
           //加载XML文件

            xmlDoc.Load(xmlPath);
            XmlNode xn = xmlDoc.SelectSingleNode("employee");

            XmlNodeList xn1 = xn.ChildNodes;
           //将XML内容读取到列表
            foreach (XmlNode xnn in xn1)

            {

                Partner partner1 = new Partner();

                XmlElement xe = (XmlElement)xnn;
                partner1.Id = Convert.ToInt32(xe.GetAttribute("ID").ToString());

                partner1.Name = xe.GetAttribute("NAME").ToString();

                partner1.DaTe = xe.GetAttribute("DATE").ToString();

                partnerList.Add(partner1);

            }
           //绑定到Grid View控件

            this.GridView1.DataSource = partnerList;

            GridView1.DataBind();

        }

        protected void Page_Load(object sender, EventArgs e)

        {

            Update();

        }
        protected void Read_Info_Click(object sender, EventArgs e)

        {

            Update();

        }
        protected void Add_Info_Click(object sender, EventArgs e)

        {

            XmlDocument xmlDoc = new XmlDocument();

            xmlDoc.Load(xmlPath);

            XmlNode root = xmlDoc.SelectSingleNode("employee");

            XmlNode x1 = xmlDoc.SelectSingleNode("employee");

            XmlNodeList nodeList = x1.ChildNodes;

            bool a = true;

            foreach (XmlNode xn in nodeList)

            {

                XmlElement xe = (XmlElement)xn;

                if (xe.GetAttribute("ID") == TextBox1.Text)

                {

                    Response.Write("<script>alert('This ID has been existed!')</script>");

                    a = false;

                    break;

                }

               

            }

           // Response.Write("<script>alert('This ID has been existed!')</script>");

       
4000
     if (a)

            {

                XmlElement xleKey = xmlDoc.CreateElement("employ");
                xleKey.SetAttribute("ID", TextBox1.Text);

                xleKey.SetAttribute("NAME", TextBox2.Text);

                xleKey.SetAttribute("DATE", TextBox3.Text);

                root.AppendChild(xleKey);

                xmlDoc.Save(xmlPath);

            }

 
            Update();

        }
        protected void Change_Info_Click(object sender, EventArgs e)

        {

            XmlDocument xmlDoc = new XmlDocument();

            xmlDoc.Load(xmlPath);

            XmlNode x1 = xmlDoc.SelectSingleNode("employee");

            XmlNodeList nodeList = x1.ChildNodes;

            foreach (XmlNode xn in nodeList)

            {

                XmlElement xe = (XmlElement)xn;

                if (xe.GetAttribute("ID") == TextBox4.Text)

                {

                    xe.SetAttribute("ID", TextBox5.Text);

                }

                else if (xe.GetAttribute("NAME") == TextBox4.Text)

                {

                    xe.SetAttribute("NAME", TextBox5.Text);

                }

                else if (xe.GetAttribute("DATA") == TextBox4.Text)

                {

                    xe.SetAttribute("DATA", TextBox5.Text);

                }

            }

            xmlDoc.Save(xmlPath);

            Update();

        }
        protected void Del_Info_Click(object sender, EventArgs e)

        {

            XmlDocument xmlDoc = new XmlDocument();

            xmlDoc.Load(xmlPath);

            XmlNode x1 = xmlDoc.SelectSingleNode("employee");

            XmlNodeList nodeList = x1.ChildNodes;

            foreach (XmlNode xn in nodeList)

            {

                XmlElement xe = (XmlElement)xn;

                if (xe.GetAttribute("ID") == TextBox6.Text)

                {

                    xe.ParentNode.RemoveChild(xe);

                    //xe.RemoveAllAttributes();

                }

            }

            xmlDoc.Save(xmlPath);

            Update();

        }
        protected void Button1_Click(object sender, EventArgs e)

        {

            Response.Write("<script>alert('This ID has been existed!')</script>");

        }

        //sort

        public SortDirection GridViewSortDirection

        {

            get

            {

                if (ViewState["sortDirection"] == null)

                    ViewState["sortDirection"] = SortDirection.Ascending;

                return (SortDirection)ViewState["sortDirection"];

            }

            set { ViewState["sortDirection"] = value; }

        }

 

        bool SSort = false;

        protected void GridView1_Sorting(object sender, GridViewSortEventArgs e)

        {

            string sortExpression = e.SortExpression;

            if (GridViewSortDirection == SortDirection.Ascending)

            {

                GridViewSortDirection = SortDirection.Descending;              

                SortGridView(sortExpression,SSort);

               

            }

            else

            {

                GridViewSortDirection = SortDirection.Ascending;

                SSort = !(SSort);

                SortGridView(sortExpression,SSort);

               

            }

        }

        private void SortGridView(string sortExpression,bool SSort)

        {

            List<Partner> partnerList = new List<Partner>();
            XmlDocument xmlDoc = new XmlDocument();

            xmlDoc.Load(xmlPath);
            XmlNode xn = xmlDoc.SelectSingleNode("employee");

            XmlNodeList xn1 = xn.ChildNodes;
            foreach (XmlNode xnn in xn1)

            {

                Partner partner1 = new Partner();

                XmlElement xe = (XmlElement)xnn;
                partner1.Id = Convert.ToInt32(xe.GetAttribute("ID").ToString());

                partner1.Name = xe.GetAttribute("NAME").ToString();

                partner1.DaTe = xe.GetAttribute("DATE").ToString();

                partnerList.Add(partner1);

            }
            if (SSort)

            {

                if (sortExpression == "Id")

                {

                    var su = partnerList.OrderBy(f => f.Id).ToList();

                    partnerList = su;

                }
                else if (sortExpression == "Name")

                {

                    var su = partnerList.OrderBy(f => f.Name).ToList();

                    partnerList = su;

                }

                else if (sortExpression == "DaTe")

                {

                    var su = partnerList.OrderBy(f => f.DaTe).ToList();

                    partnerList = su;

                }
               

                
                   // partnerList.Sort(new PartnerCompare());
              

               

            }

            else

            {

                if (sortExpression == "Id")

                {

                    var su = partnerList.OrderByDescending(f => f.Id).ToList();

                    partnerList = su;

                }
                else if (sortExpression == "Name")

                {

                    var su = partnerList.OrderByDescending(f => f.Name).ToList();

                    partnerList = su;

                }

                else if (sortExpression == "DaTe")

                {

                    var su = partnerList.OrderByDescending(f => f.DaTe).ToList();

                    partnerList = su;

                }

               

                    //partnerList.Sort(new PartnerCompare1());

               

            }

           

            this.GridView1.DataSource = partnerList;

            GridView1.DataBind();

           

        }

        public class PartnerCompare : IComparer<Partner>

        {

            public int Compare(Partner x, Partner y)

            {

                return (x.DaTe.CompareTo(y.DaTe));

            }

        }

       

        public class PartnerCompare1 : IComparer<Partner>

        {

            public int Compare(Partner x, Partner y)

            {

                return (y.DaTe.CompareTo(x.DaTe));

            }

        }
    }

}