/// <summary>
/// Occurs on save element state.
/// </summary>
public virtual void OnSaveState(FrameworkElement element, IDictionary <string, object> state, object args,
IDataContext context = null)
{
Should.NotBeNull(element, "element");
Should.NotBeNull(state, "state");
var viewModel = element.DataContext as IViewModel;
if (viewModel != null)
{
state[VmStateKey] = new LazySerializableContainer(_serializer,
_viewModelProvider.PreserveViewModel(viewModel, context ?? DataContext.Empty), viewModel);
}
}
/// <summary>
/// Preserves the view model.
/// </summary>
protected virtual void PreserveViewModel([NotNull] IViewModel viewModel, [NotNull] FrameworkElement element,
[NotNull] IDictionary<string, object> state, [NotNull] object args, [NotNull] IDataContext context)
{
state[VmStateKey] = new LazySerializableContainer(_serializer, _viewModelProvider.PreserveViewModel(viewModel, context), viewModel);
}
protected virtual void PreserveViewModel([NotNull] IViewModel viewModel, [NotNull] FrameworkElement element,
[NotNull] IDictionary <string, object> state, [NotNull] object args, [NotNull] IDataContext context)
{
state[VmStateKey] = new LazySerializableContainer(_serializer, _viewModelProvider.PreserveViewModel(viewModel, context));
}
