/// <summary>
 ///
 /// </summary>
 /// <param name="writer"></param>
 /// <author>
 /// Created by Iulian Iuga; 27 December, 2002
 /// </author>
 public virtual void Render(HtmlTextWriter writer)           //, TreeRenderState treeState
 {
     ElementWriter.RenderElement(writer, this);
 }