コード例 #1
0
        private async Task Run(TaskAction taskAction)
        {
            using (_taskAction = taskAction)
            {
                try
                {
                    WaitingFor = $"Waiting for '{_taskAction.Name}'...";
                    Progress = -1;
                    IsBusy = true;
                    _events.PublishOnUIThread(TaskState.Started);

                    await _taskAction.Run(new Progress<int>(p => Progress = p));

                    _events.PublishOnUIThread(TaskState.Completed);
                }
                catch (OperationCanceledException)
                {
                    _events.PublishOnUIThread(TaskState.Canceled);
                }
                catch (Exception ex)
                {
                    _events.PublishOnUIThread(TaskState.Faulted);
                    var msg = new TaskExceptionMessage(_taskAction.Name, ex);
                    _events.PublishOnUIThread(msg);
                    if (!msg.Handled)
                        throw;
                }
                finally
                {
                    IsBusy = false;
                }
            }
        }
コード例 #2
0
 public void Handle(TaskExceptionMessage message)
 {
     Trace.TraceError("Could not execute '{0}': {1}", message.TaskName, message.Exception);
     MessageBox.Show($"Could not execute '{message.TaskName}': {message.Exception.Message}",
         "Error", MessageBoxButton.OK, MessageBoxImage.Error);
 }