internal void CloseHost(CancelEventArgs e) { try { if (Host != null) { Host.Close(); } } catch (Exception ex) { MessageBox.Show($"Can't close host. Message - {ex.Message}", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error); } if (fileProcess.IsChange) { DialogResult result = MessageBox.Show("Save this datas?", "Question", MessageBoxButtons.YesNoCancel, MessageBoxIcon.Question); switch (result) { case DialogResult.Yes: { fileProcess.SaveDataFile(Saves.ToList()); break; } case DialogResult.Cancel: { e.Cancel = true; break; } default: break; } } }