The above example is included in the download package.

 

Here is the code:

 

<script runat="server">
 void Page_Load(object sender, System.EventArgs e)
  {
     if (IsPostBack)
  {
   Editor1.SaveRTF("document.rtf");
   textbox1.Text = Editor1.Text;
     }
  else
  {
   Editor1.LoadRTF("document.rtf");
  }  
 }
</script>

 

 

Does it help?