How do I set the entire HTML using MSHTML?

**RickPlmr** · 02-21-2007, 06:14 PM

I'm working on an upgrade to my mail merge newsletter program, and am having a hard time figuring out how to set the entire document HTML using MSHTML in C#.

It seems from my own trials and numerous posts I've read, that the document.outerHTML property is read-only. So in my WYSIWYG html editor, when I try to allow a user to paste in their own HTML (with custom body tags, styles, etc) MSHTML replaces it with a vanilla <html><head></head><body> tag.

Here's a couple of things I'll be trying... has anyone else had success with these approaches? I'll post back later if I'm able to find a solution.

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http://www.vbforums.com/showthread.php?p=2198670#post2198670

1. Make sure the document is loaded. (The DocumentCompleteEvent shows this.)
2. Get the AxWebBrowser.Document object and cast it to mshtml.IHTMLDocument2.
3. Set IHTMLDocument2.body.innerHTML property to the HTML string.
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http://www.csharpfriends.com/Forums/...x?PostID=36601

casting the document to an IHtmlDocument2 object and using the document.write() method.
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**RickPlmr** · 02-22-2007, 05:47 PM

I found a solution after a little trial and error.

The code below is the event handler for a tab control that tabs back and forth between a WYSIWYG Html editor and the HTML source:

PHP Code:


			
private void tabControl1_SelectedIndexChanged(object sender, EventArgs e)
{
  string html = "<HTML><HEAD><TITLE></TITLE></HEAD><BODY></BODY></HTML>";
  switch (tabControl1.SelectedIndex)
  {
    case 0: // Coming from Source tab
      MSHTML.IHTMLDocument2 doc2 = (MSHTML.IHTMLDocument2)document;
      doc2.open("about:blank", EMPTY_PARAMETER, EMPTY_PARAMETER, EMPTY_PARAMETER); 
      doc2.expando = true;
      if (this.txtHtmlSource.Text != string.Empty)
      {
        html = this.txtHtmlSource.Text;
      }
      doc2.write(html); 
      doc2.close();
      break;
 
    case 1: // Coming from Design tab
      MSHTML.IHTMLDocument3 doc3 = (MSHTML.IHTMLDocument3)document;
 
      if (doc3.documentElement != null)
      {
        html = doc3.documentElement.outerHTML;
      }
 
      html = html.Replace(" contentEditable=true", ""); //MSHTML enters this
      this.txtHtmlSource.Text = html;
      break;
    }
  }

Basically, to set the full html I had to open a blank html document and then use the IHTMLDocument2 interface to write to its document.

On the reverse (getting the HTML), I used the IHTMLDocument3 interface.

**RickPlmr** · 02-22-2007, 05:49 PM

Anyone know of a good html syntax highlighter and formatter?