请用心“品尝”网络电视精灵

市场上有许多电视软件，因此我们开发属于自己的电视软件！对于我们初学者来说也是拿来对付行外人吹牛的资本“^_^”

本套软件所用的技术：

01.C/S架构，数据存储在XML文件中 

    02.简单工厂模式

    03.继承和多态

    04.解析XML文档技术

   05.深入剖析内存中数据的走向

  06.TreeView控件的使用

首先你得创建以下这么多类！

namespace IntertnetTVS
{
    //频道基类
   pub

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Xml;

namespace IntertnetTVS
{
    public class TypeAChannel : ChannelBase
    {
        public override void Fetch()
        {
            XmlDataDocument doc=new XmlDataDocument();
            doc.Load("北京电视台.xml");
            if (TVlist==null)
            {
                TVlist = new List<TVprogram>();
            }
            XmlNode root = doc.DocumentElement;
            
            foreach (XmlNode item in root.ChildNodes)
            {
                if (item.Name == "tvProgramTable")
                {
                    foreach (XmlNode mynode in item.ChildNodes)
                    {
                        TVprogram tp = new TVprogram();
                        tp.PlayTime = DateTime.Parse(mynode["playTime"].InnerText);
                        tp.MyProperty = mynode["meridien"].InnerText;
                        tp.Name = mynode["programName"].InnerText;
                        tp.Path = mynode["path"].InnerText;
                        TVlist.Add(tp);
                    }
                }
            }

        }
    }
}

lic abstract class ChannelBase
    {
       //频道节目名称
        public string ChannelName { get; set; }
      //储存频道节目路径
        public string Path { get; set; }
       //储存频道下的各个节目
        public string Type { get; set; }
       //类型
        public List<TVprogram> TVlist { get; set; }
        public abstract void Fetch();
    }
}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace IntertnetTVS
{
    //节目类
   public class TVprogram
    {
       //节目播出时间
        public DateTime PlayTime { get; set; }
       //节目播出时段
        public string MyProperty { get; set; }
        //节目名称
        public string Name{ get; set; }
       //节目保存路径
        public string Path { get; set; }

    }
}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;


//工厂类
namespace IntertnetTVS
{
   public class ChannelFactory
    {
       //工厂来创建相应对象的简单工厂
       public static ChannelBase CreateBase(string type)
       {
           ChannelBase bases = null;
           switch(type)
           {
               case "TypeA":
                   bases=new TypeAChannel();
                   break;
               case "TypeB":
                   bases=new TypeBChannel();
                   break;
           }
           return bases;
       }
    }
}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Xml;

namespace IntertnetTVS
{
   public class ChannelManager
    {
       public ChannelManager()
       {
           fullChannels = new Dictionary<string, ChannelBase>();
        }
       //创建dictionary来储存所有的频道
        private Dictionary<string, ChannelBase> fullChannels;
        public Dictionary<string, ChannelBase> FullChannels
        {
            get { return fullChannels; }
            set { fullChannels = value; }
        }
       //解析xml文档将数据储存到dictionary
       public void ParseXmlToDictionary()
       {
           XmlDataDocument doc = new XmlDataDocument();
           doc.Load("FullChannels.xml");
           XmlNode root = doc.DocumentElement;
           foreach (XmlNode item in root.ChildNodes)
           {
               //获取type的类型
               string type = item["channelType"].InnerText;
              //将类型传到工场中返回对应子类
               ChannelBase mybase = ChannelFactory.CreateBase(type);
               mybase.ChannelName = item["tvChannel"].InnerText;
               mybase.Path = item["path"].InnerText;
               mybase.Type = type;
               FullChannels.Add(mybase.ChannelName, mybase);
           }
       }
    }
}

窗体装载代码

sing System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace IntertnetTVS
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            chishi();
            ChannelManager manager = new ChannelManager();
            manager.ParseXmlToDictionary();
            Dictionary<string, ChannelBase> ydy = manager.FullChannels;
            foreach (var item in ydy.Values)
            {
                TreeNode nodes = new TreeNode();
                nodes.Text = item.ChannelName;
                nodes.Tag = item;
                allnode.Nodes.Add(nodes);
            }
        }
        TreeNode allnode = new TreeNode();
        //将treeview控件添加初始默认列表
        public void chishi()
        {
            allnode.Text = "所有电台";
            TreeNode mynode = new TreeNode();
            mynode.Text = "我的电台";
            this.tvChannel.Nodes.Add(mynode);
            this.tvChannel.Nodes.Add(allnode);

        }
        private void tvChannel_AfterSelect(object sender, TreeViewEventArgs e)
        {
            TreeNode selectnodes =this.tvChannel.SelectedNode;
            if (selectnodes.Level==1&&selectnodes.Parent.Text=="所有电台")
            {
                ChannelBase cb = (ChannelBase)selectnodes.Tag;
                if (cb.TVlist!=null)
                {
                    cb.TVlist.Clear();
                }
                cb.Fetch();
                List<TVprogram> porje = cb.TVlist;
                this.dgvProgList.DataSource = porje;
            }
        }
    }
}

多么伟大的创作！多么神奇的软件！走过路过，千万不要错过！