Reg: Loading text file(size 100 MB) in Richtextbox - Memory Issue How to resolve it?

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VS2008

Hi,
I am trying to load 100 MB of Text file in rich text box, but the application gets hang or some times it gives out of memory exception.

Finally I loaded successfully . I loaded the file initially in the richtextbox i.e. after selecting the file . But again the problem continues.
i)when searching with keyword - memory out of exception occurs (Find method)
richTextBox1.Find(sSearchText, start, options); memory out of exception occurs (Find method)
ii) when i try to load the second file - memory out of exception occurs.

I am using VS2008(.Net framework3.5)

Is there any alternate to richtextbox control (open source)?

with reagrds,
Vishnuvarthan.V

Posted 10-May-12 18:01pm

Member 2389379

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Sandeep Mewara 11-May-12 1:39am

100 MB! You really want to implement it?

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OriginalGriff · Answer 1 · 2012-05-10T19:09:00

Why the heck are you loading a 100MB text file into a RichTextBox?

Think about it: How much of this text can the user see at a time? 2K?, maybe 4K? So you dump 25,000 to 50,000 pages of data on him, and are surprised when you get out of memory exceptions? Particularly with a RichTextBox where the text can be formatted, and each change of format may require different fonts for example, each of which needs a font handle in the system? How long is it going to take to load that much data in the first place on a "Normal" user PC?

Don't do it - find a better way to display your data - all you are doing is taking the lazy way for you at the expense of the poor sod who has to try to work with it every day.