小学生之解析XML应用

 1  //电视节目类
 2    public class TvProgram
 3     {
 4        //播出时间
 5         public DateTime PlayTime { get; set; }
 6 
 7        //时段
 8         public string Median { get; set; }
 9        //节目名称
10         public string ProgramName { get; set; }
11        //节目文件路劲
12         public string FilePath { get; set; }
13     }

1     //频道类
2    public abstract class ChannelBase
3     {
4        public string channelName;//频道名称
5        public string path;//频道路劲
6        public List<TvProgram> programList;//节目列表
7        //解析频道节目信息
8        public abstract void Fetch();
9     }

 1  //TypeA类频道类
 2     public  class TypeAChannel:ChannelBase
 3     {
 4         public TypeAChannel() { }
 5 
 6         
 7         public override void Fetch()
 8         {
 9             XmlDocument doc = new XmlDocument();
10             doc.Load(path);
11             if (programList==null)
12             {
13                 programList=new List<TvProgram>();
14             }
15             XmlNode root = doc.DocumentElement;
16             foreach (XmlNode item in root.ChildNodes)
17             {
18                 if (item.Name=="tvProgramTable")
19                 {
20                     foreach (XmlNode child in item.ChildNodes)
21                     {
22                         TvProgram program = new TvProgram();
23                         program.PlayTime = Convert.ToDateTime(child["playTime"].InnerText);
24                         program.Median = child["meridien"].InnerText;
25                         program.ProgramName = child["programName"].InnerText;
26                         program.FilePath = child["path"].InnerText;
27                         this.programList.Add(program);
28                     }
29                 }
30             }
31         }
32     }

 1   //频道B类
 2    public  class TypeBChannel:ChannelBase
 3     {
 4 
 5         public override void Fetch()
 6         {
 7             XmlDocument doc = new XmlDocument();
 8             doc.Load(path);
 9             if (programList == null)
10             {
11                 programList = new List<TvProgram>();
12             }
13             XmlNode root = doc.DocumentElement;
　　　　　　　　　　//解析XMl文件并填充数据
14             foreach (XmlNode item in root.ChildNodes)
15             {
16                 if (item.Name == "ProgramList")
17                 {
18                     foreach (XmlNode child in item.ChildNodes)
19                     {
20                         TvProgram program = new TvProgram();
21                         program.PlayTime = Convert.ToDateTime(child["playTime"].InnerText);
22                         program.FilePath = child["path"].InnerText;
23                         program.ProgramName = child["name"].InnerText;
24                         this.programList.Add(program);
25                     }
26                 }
27             }
28         }
29     }

 1     //工厂操作类
 2    public class ChannelManager
 3     {
 4        public Dictionary<string, ChannelBase> dic = new Dictionary<string, ChannelBase>();//存储频道名称和该频道中的节目信息
 5        public void LoadtvChannel()
 6        {
 7            XmlDocument doc = new XmlDocument();
 8            doc.Load("files/FullChannels.xml");
 9            XmlNode node = doc.DocumentElement;
10            foreach (XmlNode item in node.ChildNodes)
11            {
12               ChannelBase channel = CreateChannel(item["channelType"].InnerText);//创建频道A或者B对象
13                channel.channelName = item["tvChannel"].InnerText;//获取XML中频道名称
14                channel.path = item["path"].InnerText;//获取XML中存储的相应频道节目路劲
15                dic.Add(channel.channelName,channel);
16            }
17        }
18     //创建类的实例
19         public ChannelBase CreateChannel(string type)
20         {
21             ChannelBase channel = null;
22             switch (type)
23             {
24                 case"TypeA":
25                     channel = new TypeAChannel();
26                     break;
27                 case"TypeB":
28                     channel = new TypeBChannel();
29                     break;
30                 default:
31                     break;
32             }
33             return channel;
34         }
35     }

 1 //创建ChannelManagement类对象
 2         ChannelManager manager = new ChannelManager();
 3     //加载TreeView中的数据
 4         private void LoadTreeView() 
 5         {
 6             TreeNode nodeFristLevel = new TreeNode("我的电视台");
 7             this.tvChannel.Nodes.Add(nodeFristLevel);
 8             TreeNode allnode = new TreeNode("所有电视台");
 9             TreeNode node = null;
10             manager.LoadtvChannel();
11         //循环给“所有电视台”添加子节点
12             foreach (ChannelBase item in manager.dic.Values)
13             {
14                 node = new TreeNode(item.channelName);
15                 node.Tag = item;//保存ChannelBse对象
16                 allnode.Nodes.Add(node);   
17             }
18             this.tvChannel.Nodes.Add(allnode);
19         }
20         private void Form1_Load(object sender, EventArgs e)
21         {
22         //皮肤设置
23             skinEngine1.SkinFile = "MSN.ssk";
24         //调用方法
25             LoadTreeView();
26             
27         }
28     //TreeView点击后事件
29         private void tvChannel_AfterSelect(object sender, TreeViewEventArgs e)
30         {
31             if (this.tvChannel.SelectedNode.Level==1)//判断深度为1
32             {
33                 ChannelBase channel = (ChannelBase)tvChannel.SelectedNode.Tag;
34                 if (channel.programList != null)//清空List<T>集合中的数据
35                 {
36                     channel.programList.Clear();
37                 }
38                 channel.Fetch();
39                 this.dgvProgList.DataSource = channel.programList;//绑定数据源
40             }
41             
42         }