private void Download() { if (SelectedAttachmentItem == null) { return; } var saveDialog = new SaveFileDialog { FileName = SelectedAttachmentItem.Name, Filter = "Все файлы|*.*" }; if (saveDialog.ShowDialog() == DialogResult.OK) { File.WriteAllBytes(saveDialog.FileName, _requestService.GetFile(SelectedAttachmentItem.RequestId, SelectedAttachmentItem.FileName)); } }