Thanks,Adam

but the source code is as follows:

 void Page_Load(object sender, System.EventArgs e)
  {
     if (IsPostBack)
  {
   Editor1.SaveFile("document.htm");
   textbox1.Text = Editor1.Text;
     }
  else
  {
   Editor1.LoadHtml("document.htm");//load
  }  
 }

 

she loads a HTML document,but didn't create it.

if there wasn't "document.htm",how to create "document.htm" ?