CSHARP

reload usercontol wpf

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();

reload usercontol wpf

private void Button_RefreshControls_Click(object sender, RoutedEventArgs e)
{
    ShowCustomerControl.Refresh();
}