Check out example codes for "reload usercontol wpf". It will help you in understanding the concepts better.

Code Example 1

public static class ExtensionMethods
{
    private static readonly Action EmptyDelegate = delegate { };
    public static void Refresh(this UIElement uiElement)
    {
        uiElement.Dispatcher.Invoke(DispatcherPriority.Render, EmptyDelegate);
    }
}

//call on any UI Element like so:
//element.Refresh();

Learn ReactJs, React Native from akashmittal.com