void Application_Error(object sender, EventArgs e)
{
// Code that runs when an unhandled error occurs
// ...
// Use HttpContext.Current to get a Web request processing helper
HttpServerUtility server = HttpContext.Current.Server;
Exception exception = server.GetLastError();
if (exception is HttpUnhandledException || exception is TargetInvocationException)
{
exception = exception.InnerException;
ASPxWebControl.SetCallbackErrorMessage(exception.Message);
}
// Log an exception
logger.Error(exception);
// Su dung de hien thi Loi o Trang Error.aspx khi muon hien thi loi o Server Side
//AddToShowLog(exception.Message, exception.StackTrace);
}