Hi,
thanks to the insight that Kevin Spencer gave me concerning my regular
expressions question from a few days ago, I managed to create a first
version of my (free) Highlighter RichTextBox control. In short: it
highlights portions of text in specified (fore- and background)colo rs,
with a specified parser.
I found a number of controls on the net, but all of them had some
problems: mostly performance issues with larger texts and flickering
problems.
Besides the fact that I needed to learn how regular expressions work,
I also needed to find a solution for the performance and flickering
issues.
The performance issues have been solved by only updating the part of
the text that needs to be updated; instead of the whole text. The
flickering issue has been solved by eating paint messages when it is
not needed to repaint the control.
A first version of the control can be downloaded at http://www.coders-lab.be/mysoftware.html, if someone is intrested.
Always intrested in feedback on how to improve it.
Kind regards,
Ludwig 2  1923 
Good work, Ludwig! Wish I had the time to try it out, but I'm swamped at the
moment. It sounds like you've got a solid Control there, though.
--
HTH,
Kevin Spencer
Microsoft MVP
Professional Numbskull
Show me your certification without works,
and I'll show my certification
*by* my works.
"Ludwig" <no**@none.co m> wrote in message
news:93******** *************** *********@4ax.c om... Hi,
thanks to the insight that Kevin Spencer gave me concerning my regular
expressions question from a few days ago, I managed to create a first
version of my (free) Highlighter RichTextBox control. In short: it
highlights portions of text in specified (fore- and background)colo rs,
with a specified parser.
I found a number of controls on the net, but all of them had some
problems: mostly performance issues with larger texts and flickering
problems.
Besides the fact that I needed to learn how regular expressions work,
I also needed to find a solution for the performance and flickering
issues.
The performance issues have been solved by only updating the part of
the text that needs to be updated; instead of the whole text. The
flickering issue has been solved by eating paint messages when it is
not needed to repaint the control.
A first version of the control can be downloaded at
http://www.coders-lab.be/mysoftware.html, if someone is intrested.
Always intrested in feedback on how to improve it.
Kind regards,
Ludwig
On Fri, 07 Apr 2006 12:40:44 +0200, Ludwig <no**@none.co m> wrote: Hi,
thanks to the insight that Kevin Spencer gave me concerning my regular
expressions question from a few days ago, I managed to create a first
version of my (free) Highlighter RichTextBox control. In short: it
highlights portions of text in specified (fore- and background)colo rs,
with a specified parser.
I found a number of controls on the net, but all of them had some
problems: mostly performance issues with larger texts and flickering
problems.
Besides the fact that I needed to learn how regular expressions work,
I also needed to find a solution for the performance and flickering
issues.
The performance issues have been solved by only updating the part of
the text that needs to be updated; instead of the whole text. The
flickering issue has been solved by eating paint messages when it is
not needed to repaint the control.
A first version of the control can be downloaded at
http://www.coders-lab.be/mysoftware.html, if someone is intrested.
Always intrested in feedback on how to improve it.
Kind regards,
Ludwig
I forgot to ask my question :)
if a huge file is loaded (or pasted), it is parsed completely; but
this takes a very long time, especially the updating of the text in de
richtextbox takes forever for large amounts of texts.
Any suggestions on how to solve this? This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics | |
by: vanvee |
last post by:
Hi
I have a user control that contains a RichTextBox in vb.net. In my
program, I create multiple instances of this control (with the
RichTextBox being in each one), that appear one above the other on a
panel. The problem is that each control may have varying amounts of
data, and so each RichTextBox (within each control) needs to size to
fit the amount of text within that RichTextBox. I've tried
multiplying the size of a single line...
|
by: Tim Conner |
last post by:
Hi,
I am writing an application in C# that needs a memo control with the
capability of highlight certain syntax of programming languages, very
similar to what the Vs.Net does, or any language editor does. This should be
the type of control that can accepts different inputs, since I need to
display, VB, C# and SQL code, in nice highlighter colors.
It won't compile or anything, so I don't need grammar checking, just the
lexical tool.
|
by: Nathan Carroll |
last post by:
In an mdi environment I constructed a child for with a richtextbox control
that is used to load .rtf's. This works fine on the intiatial load of the
form but when for is closed and reopened later I get:
System.ObjectDisposedException: Cannot access a disposed object named
"RichTextBox".
Object name: "RichTextBox".
at System.Windows.Forms.Control.CreateHandle()
at System.Windows.Forms.TextBoxBase.CreateHandle()
at...
|
by: tulasi |
last post by:
I am placing textbox controls and combo box controls on richtext box and 2
command buttons on form control.
after executing the application i'll place some text into textbox controls
and select a value from combo box after entering of all the details i'll
click on one of the command buttons then it will save the contents of the
controls which i placed on the richtextbox into a file then i'll click on
another command button so it will...
|
by: James Wong |
last post by:
Hi,
I use the RichTextBox in my program.
It will use different language in this RichTextBox (chinese and english
characters), and it set the "DualFont" and use different fonts.
By the way, how can I print out this content to printer easily?
Thanks!
James
| | |
by: michael sorens |
last post by:
The documentation for the RichTextBox is sketchy at best. I want to do a
very simple task but I cannot find information on this. I am using a
RichTextBox as an output window. Some text I want to just add plain (e.g..
rtf.Text += "new stuff..."; ) but some text, when added, I want to be in a
different color or font size. Find() will not work because the text will
vary. I have delimiters on it so I could recognize it with a regular ...
|
by: =?ISO-8859-1?Q?Une_B=E9vue?= |
last post by:
i'm in search of an online syntax highlighter able to highlight either
JavaScript, CSS or HTMl only or a whole page.
the result would be shown on the page itself, on demand.
--
Une Bévue
|
by: PJ6 |
last post by:
Years ago I looked for a text editor control that would do automatic keyword
highlighting, to no avail. I found sample code to roll my own, but all of
that was crap (mostly because of the way the RichTextBox base class was
written, and the limitations of GDI+). I ended up coming to conclusion that
I'd have to write my own in C++ to make it work right, at which point I gave
up. Now it seems there are controls out there that may do the trick...
|
by: =?Utf-8?B?UmF5IE1pdGNoZWxs?= |
last post by:
Hello,
I have a multiline RichTextBox that I use for data logging. I'm concerned
about how the AppendText method reacts when over time the maximum number of
characters have been added. Do the oldest characters it contains start
rolling off the top into the bit bucket, does it simply start silently
ignoring appends until some characters, are deleted, or does some kind of
exception get thrown? I've heard numerous opinions on what the...
|
by: marktang |
last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main usage, and What is the difference between ONU and Router. Let’s take a closer look !
Part I. Meaning of...
|
by: jinu1996 |
last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that captivates audiences and drives business growth.
The Art of Business Website Design
Your website is...
| | |
by: tracyyun |
last post by:
Dear forum friends,
With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each protocol has its own unique characteristics and advantages, but as a user who is planning to build a smart home system, I am a bit confused by the choice of these technologies. I'm particularly interested in Zigbee because I've heard it does some...
|
by: agi2029 |
last post by:
Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing, and deployment—without human intervention. Imagine an AI that can take a project description, break it down, write the code, debug it, and then launch it, all on its own....
Now, this would greatly impact the work of software developers. The idea...
|
by: conductexam |
last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one.
At the time of converting from word file to html my equations which are in the word document file was convert into image.
Globals.ThisAddIn.Application.ActiveDocument.Select();...
|
by: TSSRALBI |
last post by:
Hello
I'm a network technician in training and I need your help.
I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs.
The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols.
I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...
|
by: adsilva |
last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
|
by: muto222 |
last post by:
How can i add a mobile payment intergratation into php mysql website.
| | |
by: bsmnconsultancy |
last post by:
In today's digital era, a well-designed website is crucial for businesses looking to succeed. Whether you're a small business owner or a large corporation in Toronto, having a strong online presence can significantly impact your brand's success. BSMN Consultancy, a leader in Website Development in Toronto offers valuable insights into creating effective websites that not only look great but also perform exceptionally well. In this comprehensive...
| |
