private void SaveState(FrameworkElement element, DependencyProperty property, string propertyName)
{
if (HasBindingExpression(element, property))
{
return;
}
string key = DependencyObjectHelper.GeneratePathString(element, this.GetType().FullName, element.GetType().FullName + "/" + propertyName);
if (string.IsNullOrEmpty(key))
{
return;
}
dataStore[key] = element.GetValue(property);
}
private void PreserveState(Action <UserControl, VisualStateGroup, string> preserveStateAction)
{
UserControl screen = this.AssociatedObject;
FrameworkElement content = screen.Content as FrameworkElement;
IEnumerable <VisualStateGroup> groups = VisualStateManager.GetVisualStateGroups(content).OfType <VisualStateGroup>();
foreach (VisualStateGroup group in groups)
{
string key = DependencyObjectHelper.GeneratePathString(screen, this.GetType().FullName, group.Name);
if (string.IsNullOrEmpty(key))
{
continue;
}
preserveStateAction(screen, group, key);
}
}