void CloseForm(object sender, EventArg <bool> e)
{
if (_repository.dirty && _view.AskMessage("Exit before saving?", "Exit"))
{
e.Data = true;
}
}
void CloseForm(object sender, FormClosingEventArgs e)
{
if (_repository.dirty && _view.AskMessage("Exit before saving", "Exit"))
{
e.Cancel = true;
}
}