详解C# WinForm如何优雅的处理异常
///
/// 应用程序的主入口点。
///
[STAThread]
static void Main()
{
BindExceptionHandler();
Application.EnableVisualStyles();
Application.SetCompatibleTextRenderingDefault(false);
Application.Run(new Form1());
}
///
/// 绑定程序中的异常处理
///
private static void BindExceptionHandler()
{
//设置应用程序处理异常方式：ThreadException处理
Application.SetUnhandledExceptionMode(UnhandledExceptionMode.CatchException);
//处理UI线程异常
Application.ThreadException += new System.Threading.ThreadExceptionEventHandler(Application_ThreadException);
//处理未捕获的异常
AppDomain.CurrentDomain.UnhandledException += new UnhandledExceptionEventHandler(CurrentDomain_UnhandledException);
}
///
/// 处理UI线程异常
///
///
///
private static void Application_ThreadException(object sender, System.Threading.ThreadExceptionEventArgs e)
{
string str = GetExceptionMsg(e.Exception, e.ToString());
MessageBox.Show(str, "系统错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
///
/// 处理未捕获的异常
///
///
///
private static void CurrentDomain_UnhandledException(object sender, UnhandledExceptionEventArgs e)
{
string str = GetExceptionMsg(e.ExceptionObject as Exception, e.ToString());
MessageBox.Show(str, "系统错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
///
/// 生成自定义异常消息
///
/// 异常对象
/// 备用异常消息：当ex为null时有效
///
private static string GetExceptionMsg(Exception ex, string backStr)
{
StringBuilder sb = new StringBuilder();
sb.AppendLine("****************************异常文本****************************");
sb.AppendLine("【出现时间】：" + DateTime.Now);
if (ex != null)
{
sb.AppendLine("【异常类型】：" + ex.GetType().Name);
sb.AppendLine("【异常信息】：" + ex.Message);
sb.AppendLine("【堆栈调用】：" + ex.StackTrace);
sb.AppendLine("【异常方法】：" + ex.TargetSite);
}
else
{
sb.AppendLine("【未处理异常】：" + backStr);
}
sb.AppendLine("***************************************************************");
return sb.ToString();
}