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Posted 8 Jan 2008

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Advanced Text Editor with Ruler

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4.85/5 (46 votes)
20 Mar 2008CPOL3 min read
Extending RichTextBox with ruler and much more
AdvTextEdit.PNG

Introduction

About two years ago I was creating a project for university. It was a complex of five programs that were related to testing (checking knowledge I mean). One of them contained a text editor. But unfortunately, I didn't know how to do that, that's why it was very simple. So, after these two years, I decided to rewrite my program in C# .NET (initially, it was written in VB.NET) and create a new powerful text editor. You can see part of it here.

Background

I spent a lot of time(!) searching the Internet for controls like this, but the best ones are shareware and others did not fit my needs. So, what does this control have? I tried to make it look like Microsoft Word and I think that there are some similarities. The ruler lets you change the following: left and right margins, left indent, hanging indent and right indent. You also can disable margins (their values are set to 1). You can see how it looks in the picture above.

Also, you can add tabs by clicking on the control with the left mouse button. But it is allowed only inside the area bounded by margins. If you want to remove a tab, just drag it off from the control.

The editor lets you use lists, underline styles, advanced char styles (you can create your own links, that are not words starting with "http://" or even "www"), OLE functionality is also available. I want to thank Oscar Londoño for his article Inserting Images into a RichTextBox Control (The OLE Way). It helped me a lot to deal with OLE. This project contains his code.

Using the Code

You can use the code according to the CPOL.

Projects are created as Windows Applications, but you can easily convert them into *.dll or just embed code into your project.

Unfortunately, I removed Visual Studio 2005, so, sorry but I can't create and upload a Visual Studio 2005 project. But you can import all required files into a Visual Studio 2005 project without any problems. However, note that Visual Studio 2008 added some new namespaces (like LINQ) that Visual Studio 2005 does not "understand". Just remove them. That's all. You are ready.

Points of Interest

One thing that shocked me is that Microsoft has released RichTextBox 6.0! (It is distributed with Microsoft Office 2007) but... with one exception. There is no documentation about its features. All that I've found is a list of added functions. You can find it here. There are also descriptions for all released versions of RichTextBox.

History

  • 7 January 2008: Initial release
  • 16 January 2008: Projects for Visual Studio 2005 and 2008 posted instead of standalone control.
  • 26 January 2008: Posted completed AdvancedTextEditor project. It is available for Visual Studio 2005 and Visual Studio 2008.
  • 10 February 2008: Fixed PrintDialog bug. It didn't receive focus when shown. Now it's OK. Thanks to Chris Schucker for bug report and recommendations.
  • 22 February 2008: Added new functionality (full text justification, underline styles and colors and other)
  • 24 February 2008: Fixed bug with conversion from millimeter to pixel and vice versa Thanks to Chris Schucker. Also corrected bug which caused incorrect display of the indents.
  • 19 March 2008: Version 2.0 released. A lot of changes including lists, OLE, underline styles, etc.

Additions

I understand that I am not able to include everything into the control, that's why you can freely add something useful or change code to fit your needs. But, please inform me about that, just email me at krasssss@mail.ru. It's just to let anyone use an upgraded (and corrected) version of that control. Of course, advisors will be mentioned.

License

This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)


Written By
Kazakstan Kazakstan
Currently I am studying at East Kazakhstan State Technical University. My future occupation is engineer-programmer.

I use Visual Basic, C#, Delphi and a little C++. Also I am interested in using SQL and Perl.

Comments and Discussions

 
GeneralRe: Unable to set rtf property by code Pin
Aleksei Karimov12-Sep-08 4:53
Aleksei Karimov12-Sep-08 4:53 
QuestionUtility of "old style formating" region ? Pin
moimael6-Sep-08 2:28
moimael6-Sep-08 2:28 
AnswerRe: Utility of "old style formating" region ? Pin
Aleksei Karimov10-Sep-08 6:27
Aleksei Karimov10-Sep-08 6:27 
GeneralRe: Utility of "old style formating" region ? Pin
minhvc21-Sep-08 17:44
minhvc21-Sep-08 17:44 
Questiontranslation to vb2005 Pin
frankelman28-Jul-08 12:08
frankelman28-Jul-08 12:08 
AnswerRe: translation to vb2005 Pin
Aleksei Karimov16-Aug-08 21:45
Aleksei Karimov16-Aug-08 21:45 
GeneralRe: translation to vb2005 Pin
frankelman23-Aug-08 6:01
frankelman23-Aug-08 6:01 
GeneralRe: translation to vb2005 [modified] Pin
nyt197215-Jul-11 0:38
professionalnyt197215-Jul-11 0:38 
Hi,

I have the same problem and the <serializable ()=""> _ is set too, below is the code

Imports System.Diagnostics
Imports System.Collections
Imports System.Collections.Generic
Imports System.Windows.Forms
Imports System.Drawing
Imports System.Runtime.InteropServices
Imports System.Drawing.Printing
Imports System.ComponentModel
Imports System.Security.Permissions

''' <summary>
''' This ExtendedRichTextBox is based on .NET Framework and also uses WinAPI
''' to extend its functionality. It also contains wrappers for TOM 
''' (Text Object Model) and for OLE (Object Linking and Embedding - this
''' code was written by Oscar Londoño, go to 
''' 
''' http://www.codeproject.com/KB/edit/MyExtRichTextBox.aspx 
''' 
''' for more details)
''' </summary>
<Serializable()> _
Public Class ExtendedRichTextBox
    Inherits RichTextBox
#Region "CONSTRUCTOR"
    <DllImport("kernel32.dll", CharSet:=CharSet.Auto, SetLastError:=True)> _
    Public Shared Function LoadLibrary(ByVal libname As String) As IntPtr
    End Function

    Private Shared RichEditModuleHandle As IntPtr
    'Libraries
    Private Const RichEditDllV3 As String = "RichEd20.dll"
    Private Const RichEditDllV41 As String = "Msftedit.dll"
    'You can also specify


and so on .....

Please help its urgent.

modified on Monday, July 18, 2011 3:03 AM

GeneralRe: translation to vb2005 Pin
nyt197218-Jul-11 22:48
professionalnyt197218-Jul-11 22:48 
QuestionVisual Basic 2008 Express Edition Pin
mr_fj24-Jul-08 11:46
mr_fj24-Jul-08 11:46 
AnswerRe: Visual Basic 2008 Express Edition Pin
Aleksei Karimov25-Jul-08 3:21
Aleksei Karimov25-Jul-08 3:21 
AnswerRe: Visual Basic 2008 Express Edition Pin
mr_fj26-Jul-08 15:22
mr_fj26-Jul-08 15:22 
GeneralRe: Visual Basic 2008 Express Edition Pin
DIMO1329-Aug-08 0:19
DIMO1329-Aug-08 0:19 
GeneralZoomfactor Pin
diamondhh6-Jun-08 5:33
diamondhh6-Jun-08 5:33 
GeneralRe: Zoomfactor Pin
Aleksei Karimov8-Jun-08 23:24
Aleksei Karimov8-Jun-08 23:24 
GeneralAbout pagebreak Pin
Win32nipuh28-May-08 21:27
professionalWin32nipuh28-May-08 21:27 
GeneralRe: About pagebreak Pin
Aleksei Karimov28-May-08 23:34
Aleksei Karimov28-May-08 23:34 
Questiongreat, what about VS2005? Pin
Win32nipuh22-May-08 2:38
professionalWin32nipuh22-May-08 2:38 
AnswerRe: great, what about VS2005? Pin
Aleksei Karimov22-May-08 9:44
Aleksei Karimov22-May-08 9:44 
GeneralBug Pin
nazimahmed31-Mar-08 3:12
nazimahmed31-Mar-08 3:12 
GeneralRe: Bug Pin
Aleksei Karimov31-Mar-08 8:28
Aleksei Karimov31-Mar-08 8:28 
GeneralWPF Version Pin
Len202025-Mar-08 16:57
Len202025-Mar-08 16:57 
GeneralRe: WPF Version Pin
Aleksei Karimov26-Mar-08 0:18
Aleksei Karimov26-Mar-08 0:18 
QuestionFont Size error Pin
minhvc20-Mar-08 22:59
minhvc20-Mar-08 22:59 
GeneralRe: Font Size error [modified] Pin
Aleksei Karimov21-Mar-08 2:12
Aleksei Karimov21-Mar-08 2:12 

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