private void TreeItem_ProductEdit_PreviewMouseLeftButtonDown(object sender, MouseButtonEventArgs e)
{
ProductEdit x = new ProductEdit();
UserPages.Children.Clear();
UserPages.Children.Add(x);
}
private void ButtonUpdateProducts_Click(object sender, RoutedEventArgs e)
{
this.topgrid.Visibility = Visibility.Collapsed;
this.mainscrollviewer.Visibility = Visibility.Collapsed;
ProductEdit x = new ProductEdit();
UserPages.Children.Clear();
UserPages.Children.Add(x);
}