A plain text file into a control in C#

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Hey there, this is my new challenge:

I have some info in a plain text file. I want to recover it and publish it to the user using C#. This text has some escape commands such as \n or \t. I tried with a RichTextBox and it doesn't work :thumbsdown:.

Is there any method to do it? I know there is, but I can't find it :(

Posted 28-Jan-11 12:30pm

pancho2413

Updated 28-Jan-11 12:34pm

Henry Minute

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Sergey Alexandrovich Kryukov 28-Jan-11 18:34pm

Text has not commands, so there are no "escape commands" -- they are just regular character. The syntax you show is just C# (and C/C++ and a lot more) syntax for string literals.
Where is the problem? What "doesn't work"? It does work. You simply doing something wrong, so you need to show what you try to do. What did you try to achieve? -- Code, please!
--SA

pancho2413 28-Jan-11 18:51pm

Thanks for your ultra-fast answer. The code is like this:

String mytext = "\nHello\n\n\tHow are you?"; //here I have 3 escape commands

After this, I add some escape commands for my dot matrix printer. Then, I do the following (supposing that the next control is a RichTextBox object):

richtextboxmessage.Text = mytext;

And when I run my project, the richtextboxmessage has some weird characters, maybe 10 characters and nothing else.

Now I tried not to add those escape commands for my printer and it ran :-P

I'm so happy because you were so fast. Thanks and I'll give you what you deserve for it.

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Henry Minute · Answer 1 · 2011-01-28T13:01:00

Solution 1

If you want to get rid of all these escaped characters then you could use the method suggested in this thread from MSDN.Social[^].

Posted 28-Jan-11 13:01pm

Henry Minute

AspDotNetDev · Answer 2 · 2011-01-28T13:07:00

Create a Textbox on your form (assuming you are using Windows Forms), then use this code:

C#

textBox1.Multiline = true;
textBox1.Dock = DockStyle.Fill;
textBox1.Text = "\r\nHello\r\n\r\n\tHow are you?";

In Windows, a new line is represented by "\r\n" rather than just "\n". If you have a file that contains "\n" characters, you can use a regular expression or String.Replace to fix the characters for display:

C#

textBox1.Text = "\nHello\n\n\tHow are you?".Replace("\n", "\r\n");

Or:

C#

textBox1.Text = System.Text.RegularExpressions.Regex.Replace("\nHello\n\n\tHow are you?", "(?<!\r)\n", "\r\n");

EDIT: Removed some testing code I forgot in there.