clines.cs

苏金明编写的《用VB.NET和VC#.NET开发交互式CAD系统》一书的源代码

using System;

namespace foreach2
{
	/// <summary>
	/// CLines 的摘要说明。
	/// </summary>
	public class CLines:System.Collections.DictionaryBase
	{
        
		public CLines()
		{
		}
		
		public void Add(CLine aLine)
		{
			this.Dictionary.Add(aLine.ID, aLine);
		}

		public void Remove(int aID)
		{
			this.Dictionary.Remove(aID);
		}

		public CLine this[int aID]
		{
			get
			{
				if (this.Dictionary.Contains(aID))
				{
					return checked((CLine)((this.Dictionary[aID])));
				}
				else
				{
					return null;
				}
			}
		}


	}
}