C# 深入學習 之 Winform記錄日誌

using System;using System.Windows.Forms;using ST = System.Threading;using SWF = System.Windows.Forms;using T = System.Diagnostics.Trace;namespace WindowsFormsApplication1{    static class Program    {        /// <summary>        /// The main entry point for the application.        /// </summary>        [STAThread]        static void Main()        {            Application.EnableVisualStyles();            Application.SetCompatibleTextRenderingDefault(false);            Application.ThreadException += new System.Threading.ThreadExceptionEventHandler(OnAppException);            Application.ThreadExit += new EventHandler(OnAppExit);            string logFile = string.Format("{0}{1}", AppDomain.CurrentDomain.BaseDirectory, "Applog.txt");            System.IO.TextWriter log = new System.IO.StreamWriter(logFile);            if (true)            {                System.Diagnostics.TextWriterTraceListener logger;                logger = new System.Diagnostics.TextWriterTraceListener(log);                System.Diagnostics.Trace.Listeners.Add(logger);                System.Diagnostics.Trace.WriteLine("App starting:" + DateTime.Now);             }            Application.Run(new Form1());        }        /// <summary>        /// Generic exception handler for application.        /// </summary>        /// <param name="sender"></param>        /// <param name="e"></param>        private static void OnAppException(object sender, ST.ThreadExceptionEventArgs e)        {            Exception ex;            ex = e.Exception;            // inform user...            SWF.MessageBox.Show("Halting due to error: " + ex.Message, "Bank Customer App", System.Windows.Forms.MessageBoxButtons.OK, System.Windows.Forms.MessageBoxIcon.Error);            // log it (the entire exception chain)...            T.WriteLine("Generic Application Exception Handler:");            while (ex != null)            {                T.WriteLine(ex.GetType().FullName);                T.Indent();                T.WriteLine("Msg: " + ex.Message);                T.WriteLine("Trace: " + ex.StackTrace);                T.Unindent();                T.Flush();                ex = ex.InnerException;            }//while            // halt app            T.Close();            SWF.Application.Exit();        }        /// <summary>        /// Called during normal application termination.        /// </summary>        /// <param name="sender"></param>        /// <param name="e"></param>        private static void OnAppExit(object sender, System.EventArgs e)        {            T.Close();  // close trace file        }    }}