Creating A Wysiwyg HTML Editor In C# - C# Tutorials

Creating a wysiwyg HTML editor in C# Using the MS HTML Object Library

#31 Black0n3

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Posted 09 May 2010 - 12:33 PM

sandrocirlini, on 16 March 2010 - 07:28 AM, said:

how can i disable the automatic showdialog Attachment

ew.gif?

I have the same problem. When I try to delete all text I have get same message:
This document has been modified, do you want to save changes?

how can I disable that message?

I use this to delete text:
HTMLEditor.DocumentText = ""

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#32 Guest_clone1018*

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Posted 25 May 2010 - 04:11 PM

Error 1 'System.Windows.Forms.WebBrowser' does not contain a definition for 'document' and no extension method 'document' accepting a first argument of type 'System.Windows.Forms.WebBrowser' could be found (are you missing a using directive or an assembly reference?) C:\Documents and Settings\clone1018\My Documents\Visual Studio 2008\Projects\AxximPHP\AxximPHP\Form1.cs 28 24 AxximPHP

Thats the error I get. Any clues?

        private IHTMLDocument2 doc;

        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            HTMLEditor.DocumentText = "<html><body></body></html>"; //This will get our HTML editor ready, inserting common HTML blocks into the document
            //Make the web 'browser' an editable HTML field

            doc = HTMLEditor.document.DomDocument as IHTMLDocument2;
            doc.designMode = "On";
            //What we just did was make our web browser editable!
        }

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#33 Guest_Ron*

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Posted 02 June 2010 - 07:13 PM

Thank you for the tutorial, very good!

I'm wondering how I'd move the cursor back to the starting position of the document after I've pasted in some text?

thanks,
Ron

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#34 Guest_Craig*

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Posted 20 July 2010 - 11:03 AM

This is a great tutorial. I am having trouble getting spell-check implemented with this

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#35 iDevelop

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Posted 18 August 2010 - 02:37 PM

May I use this code in a commercial product?

I assume I can as the MSHTML is included with Windows. [correct?]

Thanks for the answer!

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#36 Themitchel0

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Posted 21 August 2010 - 03:23 PM

@ idevelop id think that you can, but should change it alot, not just copy this, because that would be like cheating.

@ aj32 can you reprovide the picture at the begninng, because i cannot see it

thank you!

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#37 Guest_wiegerthefarmer*

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Posted 07 September 2010 - 07:11 AM

I have the same problem. Did you get it resolved?

Scotty G, on 09 April 2010 - 12:17 PM, said:

Hello, I'm playing around with this editor and I love the tutorial! The only problem I'm having is when I try to place any starting text in the web form. Every time I do the:

doc.selection.createRange() as IHTMLTxtRange;

vs(2005) gives me the error: Error HRESULT E_FAIL has been returned from a call to a COM component.

Do you have any idea why this is happening?

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#38 Mira_bg

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Posted 09 September 2010 - 02:15 AM

Very clear code snippet. Thank you! Only one note- you shoud use HTMLEditor.Document instead of HTMLEditor.document.

This post has been edited by Mira_bg: 10 September 2010 - 12:15 AM

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#39 Guest_kanmcuno*

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Posted 15 September 2010 - 11:31 AM

How do you get the Enter key to input <br> instead of <p></p>. I know that I can use "shift + enter" to input a <br>. I've tried using the send keys but unable to get this to work.

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#40 Guest_Justin*

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Posted 01 January 2011 - 11:33 AM

strHTMLWriter = HtmlEditor1.HTMLText
strHTMLWriter = Replace(strHTMLWriter, "<!DOCTYPE HTML PUBLIC ""-//W3C//DTD HTML 4.0 Transitional//EN"">", "")
strHTMLWriter = Replace(strHTMLWriter, "<HTML><HEAD>", "")
strHTMLWriter = Replace(strHTMLWriter, "<META content=""text/html; charset=utf-8"" http-equiv=Content-Type>", "")

strHTMLWriter = Replace(strHTMLWriter, "</HEAD>", "")
strHTMLWriter = Replace(strHTMLWriter, "<BODY>", "")
strHTMLWriter = Replace(strHTMLWriter, "</BODY></HTML>", "")

'Get rid of meta tag
strHTMLWriter = Replace(strHTMLWriter, "<META name=GENERATOR content=""MSHTML 9.00.7930.16406"">", "")
strHTMLWriter = Replace(strHTMLWriter, "<META name=GENERATOR content=""MSHTML 8.00.7600.16385"">", "")

Dim intStartChar, intEndChar As Integer
intStartChar = strHTMLWriter.IndexOf("<META")
intEndChar = strHTMLWriter.IndexOf(">")
strHTMLWriter = strHTMLWriter.Remove(intStartChar, intEndChar - intStartChar + 1)

'Get rid of spaces on either side
strHTMLWriter = strHTMLWriter.Trim

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#41 habe8

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Posted 08 March 2011 - 02:27 PM

Now: 2011 using c# VS 2010

using mshtml; wrong!
using MSHTML; is ok.

doc =
HTMLEditor.document.DomDocument as IHTMLDocument2; wrong

doc =
HTMLEditor.Document.DomDocument as IHTMLDocument2; is ok

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#42 Neyte

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Posted 21 March 2011 - 11:33 AM

Black0n3, on 09 May 2010 - 12:33 PM, said:

sandrocirlini, on 16 March 2010 - 07:28 AM, said:

how can i disable the automatic showdialog Attachment

ew.gif?

Hello , I have the same problem , have you find the solution ?

This post has been edited by Neyte: 21 March 2011 - 11:33 AM

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#43 mmtzh

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Posted 11 April 2011 - 09:43 AM

hey ho

1. thanks for this great tutorial.

But i've still a question.

When I want to change the source (or anything else) of an image, then I want to display all the properties of the image before changeing.

But how can I get the properties of a marked picture in the webbrowser ???

I allready found how to get the content of marked text - but this doesn't work with images

Can someone help me ?

i hope you understood me - my english is not so good

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#44 nassausky

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Posted 14 February 2012 - 10:46 AM

A couple years later for anyone still trying something like this out. If you are also creating a richedit control to work with the code, turning on the "AllowNavigation" to True will stop the following annoyance:
-----------------
"This document has been modified. Do you want to save changes?"
"Yes: Saves your changes"
"No: Discards your changes"
"Cancel: Keeps this document open"
Yes/No/Cancel buttons.
-----------------

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#45 frojd

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Posted 30 April 2012 - 05:47 AM

Excellent tutorial. I need relative path (in html image tag) when user try to insert image. Is it possible?

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Creating a wysiwyg HTML editor in C# Using the MS HTML Object Library

#31 Black0n3

#32 Guest_clone1018*

#33 Guest_Ron*

#34 Guest_Craig*

#35 iDevelop

#36 Themitchel0

#37 Guest_wiegerthefarmer*

#38 Mira_bg

#39 Guest_kanmcuno*

#40 Guest_Justin*

#41 habe8

#42 Neyte

#43 mmtzh

#44 nassausky

#45 frojd

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