private void ShowWindow(IViewModel viewModel, bool asDialog)
{
if (viewModel == null)
{
throw new ArgumentNullException(nameof(viewModel));
}
if (_openedWindowsMap.ContainsKey(viewModel))
{
throw new InvalidOperationException("Окно для этой ViewModel уже открыто");
}
IDisplayWindow window = CreateWindowInstance(viewModel);
_openedWindowsMap[viewModel] = window;
if (asDialog)
{
window.ShowDialog();
_openedWindowsMap.Remove(viewModel);
}
else
{
window.Show();
}
}
public TResult ShowDialog<TArg, TResult>(IDialogViewModel<TArg, TResult> viewModel, TArg dialogArg = default(TArg))
{
if (viewModel == null)
throw new ArgumentNullException(nameof(viewModel));
IDisplayWindow window = CreateWindowInstance(viewModel);
_openedWindowsMap[viewModel] = window;
// Передаём аргумент во viewModel.
viewModel.DialogArg = dialogArg;
// Выводим диалоговое окно.
window.ShowDialog();
if (_openedWindowsMap.ContainsKey(viewModel))
_openedWindowsMap.Remove(viewModel);
// Возвращаем результат.
return viewModel.DialogResult;
}