利用委托机制处理.NET中的异常

WinForm代码

private void button1_Click(object sender, EventArgs e)
        {
            try
            {
                Convert.ToInt32("abcd");
            }
            catch (Exception ex)
            {
                ///通过delegate转向工作线程的异常处理
                new ThreadExceptionHelper().ExceptionHandler(ex);
            }
        }

 

处理代码：

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

namespace WinFormTest
{
    public class ThreadExceptionHelper
    {
        /// <summary>
        /// 通过delegate转向工作线程的异常处理
        /// </summary>
        /// <param name="ex"></param>
        public void ExceptionHandler(Exception ex)
        {
            new WorkerThreadExceptionHandlerDelegate(WorkerThreadExceptionHandler).BeginInvoke(ex, null, null);
        }


        public void MainUIThreadExceptionHandler(Exception ex)
        {
            MainUIThreadExceptionHandler(this, new ThreadExceptionEventArgs(ex));
        }

        /// <summary>
        /// 主线程全局异常信息的处理
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="t"></param>
        public static void MainUIThreadExceptionHandler(object sender, ThreadExceptionEventArgs e)
        {
            MessageBox.Show("系统异常：" + e.Exception.Message, "异常信息", MessageBoxButtons.OK, MessageBoxIcon.Error, MessageBoxDefaultButton.Button1, MessageBoxOptions.ServiceNotification);
        }


        /// <summary>
        /// 声明工作线程的delegate
        /// </summary>
        public delegate void WorkerThreadExceptionHandlerDelegate(Exception e);

        /// <summary>
        /// 工作线程的异常处理
        /// </summary>
        /// <param name="e"></param>
        public void WorkerThreadExceptionHandler(Exception e)
        {
            ///添加其他的处理代码

            ///通知全局异常处理程序
            MainUIThreadExceptionHandler(this, new System.Threading.ThreadExceptionEventArgs(e));
        }
    }
}