How To Select Text between two empty line in textbox winform C#

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How To Select and get Text or word or paragraph between two empty lines in textbox winform C#?

this i want

Paragraph one
Paragraph one
Paragraph one

Paragraph two
Paragraph two
Paragraph two

if any two paragraph, select paragraph one when i click paragraph one, but paragraph two not select. any solution?

Thanks For Help!

Posted 31-May-15 16:44pm

nofry

Updated 1-Jun-15 3:03am

Maciej Los

v4

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Sergey Alexandrovich Kryukov 31-May-15 22:55pm

What have you tried so far?
Anyway, it's obvious that the problem may have more than one solution (not the ways to solve it, but different solutions: the could be more than one different selections matching this criterion).
—SA

nofry 31-May-15 23:18pm

I already use
textBox1.SelectionStart = 0;
textBox1.SelectionLength = textBox1.Text.Length;

this i want

if any two paragraph, select paragraph one when i click paragraph one, but paragraph two not select. any solution!

Sergey Alexandrovich Kryukov 1-Jun-15 11:14am

The "paragraph" is the fragment of text between end-of-line characters. On Windows, this is CR LF...
Use it to find out them.
—SA

Abhipal Singh 1-Jun-15 12:55pm

Open your file in notepad++ to see the newline characters as -SA suggested {CR}{LF}.

Hint: You will need to do a string.Split('your new paragraph char')[0] or string.Split('your new paragraph char').[1]

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Sergey Alexandrovich Kryukov · Answer 1 · 2015-06-01T07:35:00

I think you got enough hints in the comments to the question.

You already know how to control selection with SelectionStart and SelectionLength. You also can use this: https://msdn.microsoft.com/en-us/library/system.string.split%28v=vs.110%29.aspx[^].

The final problem is what to use for end-of-line characters. Unfortunately, they are platform-dependent: http://en.wikipedia.org/wiki/Newline[^].

So, you need to use this property: https://msdn.microsoft.com/en-us/library/system.environment.newline%28v=vs.110%29.aspx[^].

Now you know everything to solve the problem. Now, it's your turn.

—SA