c# - Is there way to speed up displaying a lot of text in a winforms textbox?

Question

Is there way to speed up displaying a lot of text in a winforms textbox? My application reads a file (which can be as large as 20MB) and then displays it to a textbox (TextBoxX.Text = fileText;).

The process of displaying the text is extremely slow, it sometimes takes up to a few minutes. The problem is that this application is designed to show a lot of text in a file, quickly to the user.

Is there any way to do this faster? Maybe use some kind of caching?

Answer 1

I know this question is old at this time, but I would like to add information I consider may be helpful to others.

If you set WordWrap=false, the performance will improve dramatically in some cases. It will still wrap long lines when a max limit is reached. I tried some text 90K long which included a long chunk of Base64 data, and the response changed from 16 seconds to 2 seconds.