private void BtnSub_OnClick(object sender, RoutedEventArgs e)
{
var win = new SubWindow {
Owner = this
};
win.Show();
}
public static SubWindow Create(string key)
{
if (string.IsNullOrWhiteSpace(key))
{
throw new ArgumentNullException("key");
}
if (CachedWindows.Any(w => w._key == key && !w.IsVisible))
{
return(CachedWindows.Last(w => w._key == key && !w.IsVisible));
}
var win = new SubWindow(key)
{
Title = key + GetOrder(key)
};
return(win);
}