C#设计模式--组合模式(Composite Pattern)
介绍将对象组合成树形结构以表示“部分-整体”的层次结构。它使得客户对单个对象和复合对象的使用具有一致性。
示例
有一个Message实体类，使其单个对象和复合对象具有一致性。
http://images.cnblogs.com/cnblogs_com/webabcd/82667/o_Composite.png
MessageModel
http://www.cnblogs.com/Images/OutliningIndicators/None.gifusing System;
http://www.cnblogs.com/Images/OutliningIndicators/None.gifusing System.Collections.Generic;
http://www.cnblogs.com/Images/OutliningIndicators/None.gifusing System.Text;
http://www.cnblogs.com/Images/OutliningIndicators/None.gif
http://www.cnblogs.com/Images/OutliningIndicators/None.gifnamespace Pattern.Composite
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedBlockStart.gifhttp://www.cnblogs.com/Images/OutliningIndicators/ContractedBlock.gifhttp://www.cnblogs.com/Images/dot.gif{
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gifhttp://www.cnblogs.com/Images/OutliningIndicators/ContractedSubBlock.gif /**//// <summary>
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif /// Message实体类
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockEnd.gif /// </summary>
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif public class MessageModel
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gifhttp://www.cnblogs.com/Images/OutliningIndicators/ContractedSubBlock.gif http://www.cnblogs.com/Images/dot.gif{
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gifhttp://www.cnblogs.com/Images/OutliningIndicators/ContractedSubBlock.gif /**//// <summary>
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif /// 构造函数
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif /// </summary>
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif /// <param name="msg">Message内容</param>
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockEnd.gif /// <param name="pt">Message发布时间</param>
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif public MessageModel(string msg, DateTime pt)
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gifhttp://www.cnblogs.com/Images/OutliningIndicators/ContractedSubBlock.gif http://www.cnblogs.com/Images/dot.gif{
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif this._message = msg;
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif this._publishTime = pt;
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockEnd.gif }
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif private string _message;
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gifhttp://www.cnblogs.com/Images/OutliningIndicators/ContractedSubBlock.gif /**//// <summary>
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif /// Message内容
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockEnd.gif /// </summary>
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif public string Message
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gifhttp://www.cnblogs.com/Images/OutliningIndicators/ContractedSubBlock.gif http://www.cnblogs.com/Images/dot.gif{
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gifhttp://www.cnblogs.com/Images/OutliningIndicators/ContractedSubBlock.gif get http://www.cnblogs.com/Images/dot.gif{ return _message; }
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gifhttp://www.cnblogs.com/Images/OutliningIndicators/ContractedSubBlock.gif set http://www.cnblogs.com/Images/dot.gif{ _message = value; }
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockEnd.gif }
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif private DateTime _publishTime;
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gifhttp://www.cnblogs.com/Images/OutliningIndicators/ContractedSubBlock.gif /**//// <summary>
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif /// Message发布时间
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockEnd.gif /// </summary>
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif public DateTime PublishTime
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gifhttp://www.cnblogs.com/Images/OutliningIndicators/ContractedSubBlock.gif http://www.cnblogs.com/Images/dot.gif{
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gifhttp://www.cnblogs.com/Images/OutliningIndicators/ContractedSubBlock.gif get http://www.cnblogs.com/Images/dot.gif{ return _publishTime; }
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gifhttp://www.cnblogs.com/Images/OutliningIndicators/ContractedSubBlock.gif set http://www.cnblogs.com/Images/dot.gif{ _publishTime = value; }
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockEnd.gif }
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockEnd.gif }
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedBlockEnd.gif}
http://www.cnblogs.com/Images/OutliningIndicators/None.gif
MessageModelComponent
http://www.cnblogs.com/Images/OutliningIndicators/None.gifusing System;
http://www.cnblogs.com/Images/OutliningIndicators/None.gifusing System.Collections.Generic;
http://www.cnblogs.com/Images/OutliningIndicators/None.gifusing System.Text;
http://www.cnblogs.com/Images/OutliningIndicators/None.gif
http://www.cnblogs.com/Images/OutliningIndicators/None.gifnamespace Pattern.Composite
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedBlockStart.gifhttp://www.cnblogs.com/Images/OutliningIndicators/ContractedBlock.gifhttp://www.cnblogs.com/Images/dot.gif{
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gifhttp://www.cnblogs.com/Images/OutliningIndicators/ContractedSubBlock.gif /**//// <summary>
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif /// 抽象Message实体构件（Component）
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockEnd.gif /// </summary>
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif public abstract class MessageModelComponent
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gifhttp://www.cnblogs.com/Images/OutliningIndicators/ContractedSubBlock.gif http://www.cnblogs.com/Images/dot.gif{
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gifhttp://www.cnblogs.com/Images/OutliningIndicators/ContractedSubBlock.gif /**//// <summary>
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif /// Message实体对象
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockEnd.gif /// </summary>
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif protected MessageModel _messageModel;
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gifhttp://www.cnblogs.com/Images/OutliningIndicators/ContractedSubBlock.gif /**//// <summary>
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif /// 名称
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockEnd.gif /// </summary>
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif protected string _name;
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gifhttp://www.cnblogs.com/Images/OutliningIndicators/ContractedSubBlock.gif /**//// <summary>
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif /// 构造函数
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif /// </summary>
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif /// <param name="name">名称</param>
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockEnd.gif /// <param name="mm">Message实体对象</param>
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif public MessageModelComponent(string name, MessageModel mm)
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gifhttp://www.cnblogs.com/Images/OutliningIndicators/ContractedSubBlock.gif http://www.cnblogs.com/Images/dot.gif{
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif this._name = name;
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif this._messageModel = mm;
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockEnd.gif }
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gifhttp://www.cnblogs.com/Images/OutliningIndicators/ContractedSubBlock.gif /**//// <summary>
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif /// 构造函数
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif /// </summary>
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockEnd.gif /// <param name="name">名称</param>
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif public MessageModelComponent(string name)
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gifhttp://www.cnblogs.com/Images/OutliningIndicators/ContractedSubBlock.gif http://www.cnblogs.com/Images/dot.gif{
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif this._name = name;
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockEnd.gif }
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gifhttp://www.cnblogs.com/Images/OutliningIndicators/ContractedSubBlock.gif /**//// <summary>
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif /// 添加
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif /// </summary>
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockEnd.gif /// <param name="mmc">MessageModelComponent</param>
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif public abstract void Add(MessageModelComponent mmc);
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gifhttp://www.cnblogs.com/Images/OutliningIndicators/ContractedSubBlock.gif /**//// <summary>
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif /// 删除
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif /// </summary>
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockEnd.gif /// <param name="mmc">MessageModelComponent</param>
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif public abstract void Remove(MessageModelComponent mmc);
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gifhttp://www.cnblogs.com/Images/OutliningIndicators/ContractedSubBlock.gif /**//// <summary>
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif /// 获取
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif /// </summary>
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif /// <param name="indent">缩进数</param>
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockEnd.gif /// <returns></returns>
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif public abstract string GetData(int indent);
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockEnd.gif }
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedBlockEnd.gif}
http://www.cnblogs.com/Images/OutliningIndicators/None.gif
MessageModelLeaf
http://www.cnblogs.com/Images/OutliningIndicators/None.gifusing System;
http://www.cnblogs.com/Images/OutliningIndicators/None.gifusing System.Collections.Generic;
http://www.cnblogs.com/Images/OutliningIndicators/None.gifusing System.Text;
http://www.cnblogs.com/Images/OutliningIndicators/None.gif
http://www.cnblogs.com/Images/OutliningIndicators/None.gifnamespace Pattern.Composite
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedBlockStart.gifhttp://www.cnblogs.com/Images/OutliningIndicators/ContractedBlock.gifhttp://www.cnblogs.com/Images/dot.gif{
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gifhttp://www.cnblogs.com/Images/OutliningIndicators/ContractedSubBlock.gif /**//// <summary>
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif /// Message实体树叶（Leaf）
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockEnd.gif /// </summary>
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif public class MessageModelLeaf : MessageModelComponent
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gifhttp://www.cnblogs.com/Images/OutliningIndicators/ContractedSubBlock.gif http://www.cnblogs.com/Images/dot.gif{
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gifhttp://www.cnblogs.com/Images/OutliningIndicators/ContractedSubBlock.gif /**//// <summary>
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif /// 构造函数
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif /// </summary>
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif /// <param name="name">名称</param>
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockEnd.gif /// <param name="mm">Message实体对象</param>
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif public MessageModelLeaf(string name, MessageModel mm)
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif : base(name, mm)
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gifhttp://www.cnblogs.com/Images/OutliningIndicators/ContractedSubBlock.gif http://www.cnblogs.com/Images/dot.gif{
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockEnd.gif }
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gifhttp://www.cnblogs.com/Images/OutliningIndicators/ContractedSubBlock.gif /**//// <summary>
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif /// 添加
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif /// </summary>
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockEnd.gif /// <param name="mmc">MessageModelComponent</param>
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif public override void Add(MessageModelComponent mmc)
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gifhttp://www.cnblogs.com/Images/OutliningIndicators/ContractedSubBlock.gif http://www.cnblogs.com/Images/dot.gif{
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif throw new Exception("不能添加");
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockEnd.gif }
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gifhttp://www.cnblogs.com/Images/OutliningIndicators/ContractedSubBlock.gif /**//// <summary>
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif /// 删除
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif /// </summary>
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockEnd.gif /// <param name="mmc">MessageModelComponent</param>
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif public override void Remove(MessageModelComponent mmc)
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gifhttp://www.cnblogs.com/Images/OutliningIndicators/ContractedSubBlock.gif http://www.cnblogs.com/Images/dot.gif{
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif throw new Exception("不能删除");
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockEnd.gif }
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gifhttp://www.cnblogs.com/Images/OutliningIndicators/ContractedSubBlock.gif /**//// <summary>
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif /// 获取
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif /// </summary>
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif /// <param name="indent">缩进数</param>
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockEnd.gif /// <returns></returns>
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif public override string GetData(int indent)
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gifhttp://www.cnblogs.com/Images/OutliningIndicators/ContractedSubBlock.gif http://www.cnblogs.com/Images/dot.gif{
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif return new String('—', indent) +
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif "树叶名称：" + _name +
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif "；信息内容：" + _messageModel.Message +
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif "<br />";
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockEnd.gif }
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockEnd.gif }
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedBlockEnd.gif}
http://www.cnblogs.com/Images/OutliningIndicators/None.gif
MessageModelComposite
http://www.cnblogs.com/Images/OutliningIndicators/None.gifusing System;
http://www.cnblogs.com/Images/OutliningIndicators/None.gifusing System.Collections.Generic;
http://www.cnblogs.com/Images/OutliningIndicators/None.gifusing System.Text;
http://www.cnblogs.com/Images/OutliningIndicators/None.gif
http://www.cnblogs.com/Images/OutliningIndicators/None.gifnamespace Pattern.Composite
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedBlockStart.gifhttp://www.cnblogs.com/Images/OutliningIndicators/ContractedBlock.gifhttp://www.cnblogs.com/Images/dot.gif{
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gifhttp://www.cnblogs.com/Images/OutliningIndicators/ContractedSubBlock.gif /**//// <summary>
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif /// Message实体树枝（Composite）
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockEnd.gif /// </summary>
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif public class MessageModelComposite : MessageModelComponent
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gifhttp://www.cnblogs.com/Images/OutliningIndicators/ContractedSubBlock.gif http://www.cnblogs.com/Images/dot.gif{
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif private List<MessageModelComponent> _list;
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gifhttp://www.cnblogs.com/Images/OutliningIndicators/ContractedSubBlock.gif /**//// <summary>
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif /// 构造函数
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif /// </summary>
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockEnd.gif /// <param name="name">名称</param>
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif public MessageModelComposite(string name)
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif : base(name)
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gifhttp://www.cnblogs.com/Images/OutliningIndicators/ContractedSubBlock.gif http://www.cnblogs.com/Images/dot.gif{
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif _list = new List<MessageModelComponent>();
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockEnd.gif }
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gifhttp://www.cnblogs.com/Images/OutliningIndicators/ContractedSubBlock.gif /**//// <summary>
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif /// 添加
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif /// </summary>
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockEnd.gif /// <param name="mmc">MessageModelComponent</param>
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif public override void Add(MessageModelComponent mmc)
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gifhttp://www.cnblogs.com/Images/OutliningIndicators/ContractedSubBlock.gif http://www.cnblogs.com/Images/dot.gif{
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif _list.Add(mmc);
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockEnd.gif }
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gifhttp://www.cnblogs.com/Images/OutliningIndicators/ContractedSubBlock.gif /**//// <summary>
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif /// 删除
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif /// </summary>
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockEnd.gif /// <param name="mmc">MessageModelComponent</param>
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif public override void Remove(MessageModelComponent mmc)
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gifhttp://www.cnblogs.com/Images/OutliningIndicators/ContractedSubBlock.gif http://www.cnblogs.com/Images/dot.gif{
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif _list.Remove(mmc);
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockEnd.gif }
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gifhttp://www.cnblogs.com/Images/OutliningIndicators/ContractedSubBlock.gif /**//// <summary>
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif /// 获取
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif /// </summary>
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif /// <param name="indent">缩进数</param>
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockEnd.gif /// <returns></returns>
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif public override string GetData(int indent)
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gifhttp://www.cnblogs.com/Images/OutliningIndicators/ContractedSubBlock.gif http://www.cnblogs.com/Images/dot.gif{
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif string s = new String('—', indent) +
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif "树枝名称：" + _name +
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif "<br />";
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif foreach (MessageModelComponent mmc in _list)
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gifhttp://www.cnblogs.com/Images/OutliningIndicators/ContractedSubBlock.gif http://www.cnblogs.com/Images/dot.gif{
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif s += mmc.GetData(indent + 2);
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockEnd.gif }
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif return s;
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockEnd.gif }
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockEnd.gif }
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedBlockEnd.gif}
http://www.cnblogs.com/Images/OutliningIndicators/None.gif
Test
http://www.cnblogs.com/Images/OutliningIndicators/None.gifusing System;
http://www.cnblogs.com/Images/OutliningIndicators/None.gifusing System.Data;
http://www.cnblogs.com/Images/OutliningIndicators/None.gifusing System.Configuration;
http://www.cnblogs.com/Images/OutliningIndicators/None.gifusing System.Collections;
http://www.cnblogs.com/Images/OutliningIndicators/None.gifusing System.Web;
http://www.cnblogs.com/Images/OutliningIndicators/None.gifusing System.Web.Security;
http://www.cnblogs.com/Images/OutliningIndicators/None.gifusing System.Web.UI;
http://www.cnblogs.com/Images/OutliningIndicators/None.gifusing System.Web.UI.WebControls;
http://www.cnblogs.com/Images/OutliningIndicators/None.gifusing System.Web.UI.WebControls.WebParts;
http://www.cnblogs.com/Images/OutliningIndicators/None.gifusing System.Web.UI.HtmlControls;
http://www.cnblogs.com/Images/OutliningIndicators/None.gif
http://www.cnblogs.com/Images/OutliningIndicators/None.gifusing Pattern.Composite;
http://www.cnblogs.com/Images/OutliningIndicators/None.gif
http://www.cnblogs.com/Images/OutliningIndicators/None.gifpublic partial class Composite : System.Web.UI.Page
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedBlockStart.gifhttp://www.cnblogs.com/Images/OutliningIndicators/ContractedBlock.gifhttp://www.cnblogs.com/Images/dot.gif{
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif protected void Page_Load(object sender, EventArgs e)
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gifhttp://www.cnblogs.com/Images/OutliningIndicators/ContractedSubBlock.gif http://www.cnblogs.com/Images/dot.gif{
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif MessageModelComposite root = new MessageModelComposite("树枝A");
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif root.Add(new MessageModelLeaf("树叶A", new MessageModel("Message内容A", DateTime.Now)));
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif root.Add(new MessageModelLeaf("树叶B", new MessageModel("Message内容B", DateTime.Now)));
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif MessageModelComposite comp = new MessageModelComposite("树枝B");
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif comp.Add(new MessageModelLeaf("树叶C", new MessageModel("Message内容C", DateTime.Now)));
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif comp.Add(new MessageModelLeaf("树叶D", new MessageModel("Message内容D", DateTime.Now)));
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif root.Add(comp);
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif root.Add(new MessageModelLeaf("树叶E", new MessageModel("Message内容E", DateTime.Now)));
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif MessageModelLeaf l = new MessageModelLeaf("树叶F", new MessageModel("Message内容F", DateTime.Now));
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif root.Add(l);
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif root.Remove(l);
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif
http://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif Response.Write(root.GetData(1));
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockEnd.gif }
http://www.cnblogs.com/Images/OutliningIndicators/ExpandedBlockEnd.gif}
http://www.cnblogs.com/Images/OutliningIndicators/None.gif
运行结果
—树枝名称：树枝A
———树叶名称：树叶A；信息内容：Message内容A
———树叶名称：树叶B；信息内容：Message内容B
———树枝名称：树枝B
—————树叶名称：树叶C；信息内容：Message内容C
—————树叶名称：树叶D；信息内容：Message内容D
———树叶名称：树叶E；信息内容：Message内容E
参考
http://www.dofactory.com/Patterns/PatternComposite.aspx
OK
[源码下载]
C#设计模式导航：
C#设计模式--文章索引
C#设计模式--抽象工厂模式(Abstract Factory Pattern)
C#设计模式--原型模式(Prototype Pattern)
C#设计模式--工厂方法模式(Factory Method Pattern)
C#设计模式--单例模式(Singleton Pattern)
C#设计模式--适配器模式(Adapter Pattern)
C#设计模式--桥接模式(Bridge Pattern)
C#设计模式--组合模式(Composite Pattern)
C#设计模式--装饰模式(Decorator Pattern)
C#设计模式-- 外观模式(Facade Pattern)
C#设计模式--享元模式(Flyweight Pattern)
C#设计模式--代理模式(Proxy Pattern)
C#设计模式--责任链模式(Chain of Responsibility Pattern)
C#设计模式--命令模式(Command Pattern)
C#设计模式--解释器模式(Interpreter Pattern)
C#设计模式--迭代器模式(Iterator Pattern)
C#设计模式--中介者模式(Mediator Pattern)
C#设计模式--备忘录模式(Memento Pattern)
C#设计模式--观察者模式(Observer Pattern)
C#设计模式--状态模式(State Pattern)
C#设计模式--策略模式(Strategy Pattern)
C#设计模式--模板方法模式(Template Method Pattern)
C#设计模式--访问者模式(Visitor Pattern)
C#设计模式--提供者模式(Provider Pattern)
本文摘自：http://www.cnblogs.com/webabcd/archive/2007/05/13/744865.html
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