/// <summary>
/// Clears this instance.
/// </summary>
public void Clear()
{
UISleepHelper.Do(() => Children.Clear());
}
/// <summary>
/// Adds the specified content.
/// </summary>
/// <param name="content">The content.</param>
public void Add(IControl content)
{
UISleepHelper.Do(() => Children.Add(content as UIElement));
}