/// <summary>
/// Unloads the content.
/// </summary>
public virtual void UnloadContent()
{
GuiElements.ForEach(w => w.UnloadContent());
GuiElements.Clear();
}
/// <summary>
/// Focuses the input on the element with the specified identifier.
/// </summary>
/// <param name="id">Element identifier.</param>
public void FocusElement(string id)
{
GuiElements.ForEach(e => e.InputFocus = false);
GuiElements.FirstOrDefault(e => e.Id == id).InputFocus = true;
}
