How to delete every second line from RichDataTextBox?

Question

How to delete number of lines from richDataTextBox? I need to delete each second line. For example, I have a text document, opened in rich DataTextBox..

1. "aaaaaaa  
     bbbbbbb  
     ccccccc  
     ddddddd"

How can I delete lines: "bbbbbbb" and "ddddddd"... and continue till the end of the text file.

var lines = this.dataTextBox.Lines;

try this http://stackoverflow.com/questions/1329347/delete-a-specific-line-in-a-net-richtextbox....may help — PresleyDias, Feb 23 '12 at 07:48
This link is good... I saved that code for future problems. Thank You! — user922907, Feb 23 '12 at 08:17

score 3 · Accepted Answer · answered Feb 23 '12 at 08:02

3

You can use LINQ to delete every second line:

var lines=richTextBox1.Lines
    . Where((l, index) => index % 2 == 0)
    .Select((l, index) => l);
richTextBox1.Lines = lines.ToArray();

It selects all lines that should not be deleted and skips all others.

answered Feb 23 '12 at 08:02

Tim Schmelter

450,073
74
686
939

Thank You very much. Exactly, what I need. (I'm still not strong in syntax.) I like to use LINQ. It is perfect for me! – user922907 Feb 23 '12 at 08:16

How to delete every second line from RichDataTextBox?

1 Answers1