C#编程

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Class1.cs：源码内容

							using System;
using System.Runtime.InteropServices;
namespace Wrox.ProCSharp.COMInterop.Server
{
	[InterfaceType(ComInterfaceType.InterfaceIsIDispatch)]
	public interface IMathEvents
	{
		[DispId(46200)] void CalculationCompleted();
	}
	[InterfaceType(ComInterfaceType.InterfaceIsDual)]
	public interface IWelcome
	{
		[DispId(60040)] string Greeting(string name);
	}
	[InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
	public interface IMath
	{
		int Add(int val1, int val2);
		int Sub(int val1, int val2);
	}
	[ComVisible(false)]
	public delegate void CalculationCompletedDelegate();
	[ClassInterface(ClassInterfaceType.None)]
	[ProgId("Wrox.DotnetComponent")]
	[Guid("77839717-40DD-4876-8297-35B98A8402C7")]
	[ComSourceInterfaces(typeof(IMathEvents))]
	public class DotnetComponent : IWelcome, IMath
	{
		public DotnetComponent()
		{
		}
		public event CalculationCompletedDelegate CalculationCompleted;
		#region IWelcome Members
		public string Greeting(string name)
		{
			return "Hello " + name;
		}
		#endregion
		#region IMath Members
		public int Add(int val1, int val2)
		{
			int result = val1 + val2;
			if (CalculationCompleted != null)
				CalculationCompleted();
			return result;
		}
		public int Sub(int val1, int val2)
		{
			int result = val1 - val2;
			if (CalculationCompleted != null)
				CalculationCompleted();
			return result;
		}
		#endregion
	}
}

						