RichTextbox partially ReadOnly

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Hello, i want to have a RichTextBox where a text is loaded inside.
But the User must have the chance to change only a part of the TextBox is this possible?

Posted 27-Aug-11 4:09am

ColdCrush

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Karl Sanford 27-Aug-11 10:42am

What type of project is this? WPF, Winforms, ASP.NET?

ColdCrush 27-Aug-11 10:49am

its a WindowsFormApplication in Visual C#.Net

BillWoodruff 28-Aug-11 1:40am

Can you describe a bit more fully the spatial relationship of the text you do not wish the user to edit and the text you do wish to allow to be edited: are they "mixed together" in one sentence, or one paragraph, or are they contained in completely different areas ?

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boobalan · Answer 1 · 2014-11-26T01:34:00

Solution 5

The scenario is mentioned here

https://sites.google.com/site/greateindiaclub/mobil-apps/windows8/customwpfrichtextboxwithcolorchangeandhighlightfunctionality[^]

and Source code is here

https://github.com/boobalaninfo/CustomRichTextBoxWithHighligh[^]

Posted 26-Nov-14 1:34am

boobalan

roman_2012 · Answer 2 · 2014-06-11T02:14:00

Solution 4

YOUR FIND THIS
THIS IS BLOODED CODE LINK

http://www.cnblogs.com/xe2011/p/3780793.html
http://files.cnblogs.com/xe2011/WindowsFormsApplication_LimitRichTextBoxInput.rar

Posted 11-Jun-14 2:14am

roman_2012

Updated 11-Jun-14 2:17am

v2

Karl Sanford · Answer 3 · 2011-08-27T05:09:00

There is no simple way to do what you have described. You may be able to get some ideas from this CP article:
Syntax highlighting textbox written in C#[^]

While this article is for syntax highlighting, the concept isn't too much different from what you have described. Essentially, you need to tokenize the text and perform some action on it based on the text. In this articles case, the action is to highlight or not highlight, and in your case your action is to edit or not edit. (You may even be able to use the synatx highlighting idea to identify those areas that can be edited)

If you get this working, I think it would make a great article!