private void addButton_Click(object sender, RoutedEventArgs e)
{
MaterialDefinitionWindowView window = new MaterialDefinitionWindowView(Model.CurrentResourceClass);
window.Closed += new EventHandler(window_Closed);
window.Show();
}
void window_Closed(object sender, EventArgs e)
{
MaterialDefinitionWindowView window = (MaterialDefinitionWindowView)sender;
ResourceDefinition material = window.Material;
}
