Highlighting changes between two paragraphs

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Background info: (skip if you want) I created a function that finds the longest common sequence between two strings and saves the results. Now I want to build a control that displays what was added as highlighted in yellow and what was removed as highlighted in red. To do this I just compare one string to the next and anytime I find something that doesn't match the next things will be highlighted.

I've worked out how it works, I just was wondering what the best way for highlighting parts of a paragraph in different colors while keeping the same formating as when it is not highlighted.

Posted 8-Jun-11 5:41am

MJ_

Updated 8-Jun-11 5:42am

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Kschuler 8-Jun-11 12:22pm

How are you using the string? Is it just displayed in the html? Is it in a control?

Sergey Alexandrovich Kryukov 8-Jun-11 14:13pm

Not clear. Are you asking only about presentation of highlighted text, or you need some algorithm. Also, what's your data structures presenting your results of comparison?
--SA

MJ_ 8-Jun-11 14:21pm

I would like to make it a control that I am going to have to call for several different paragraphs. Basically a label but with different parts highlighted in different colors. I will highlight until the strings match, then continue unhighlighted until it finds a mismatch. Then it will highlight.

Bascally highlight parts of the label based off if the strings don't match and not highlighting that parts where they do.

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ArtificerGM · Answer 1 · 2011-06-08T10:38:00

Solution 2

RichTextBox Class... Problem solved!

C# - Formatting Text in a RichTextBox by Parsing the Rich Text Format (RTF)[^]

http://msdn.microsoft.com/en-us/library/system.windows.forms.richtextbox.aspx[^]

Posted 8-Jun-11 10:38am

ArtificerGM