private void ExportProject()
        {
            if (_project != null)
            {
                if (_currentFile != null)
                {
                    if (_currentFile.NeedSaving)
                    {
                        var result = MessageBox.Show(
                            "Es necesario guardar los cambios antes de continuar.\n¿Quieres guardarlos?",
                            "Guardar cambios", MessageBoxButtons.YesNo, MessageBoxIcon.Question);

                        if (result == DialogResult.No)
                        {
                            return;
                        }

                        if (result == DialogResult.Yes)
                        {
                            _currentFile.SaveChanges();
                        }
                    }
                }

                var form = new ExportProjectForm(dockTheme, _project.FileContainers);

                var formResult = form.ShowDialog(this);

                if (formResult == DialogResult.Cancel)
                {
                    return;
                }

                var selectedContainers = form.SelectedContainers;
                var options            = form.Options;

                var workForm = new WorkingForm(dockTheme, "Exportar traducción");

                workForm.DoWork += (sender, args) =>
                {
                    var worker = sender as BackgroundWorker;

                    try
                    {
                        _project.Export(selectedContainers, options, worker);

                        worker.ReportProgress(-1, "FINALIZADO");
                        worker.ReportProgress(-1, string.Empty);
                        worker.ReportProgress(-1, $"Los ficheros exportados están en {_project.ExportFolder}");
                    }
                    catch (UserCancelException e)
                    {
                        args.Cancel = true;
                    }
#if !DEBUG
                    catch (Exception e)
                    {
                        worker.ReportProgress(0, $"ERROR: {e.Message}");
                    }
#endif
                };

                workForm.ShowDialog(this);
            }
        }
 private void SaveChanges()
 {
     _currentFile?.SaveChanges();
 }