How to select a line by clicking in a RichTextBox?

Question

Hello guys! I have a problem with a richtextbox. I would like to select a line in a rtb by clicking on a line... I don't know the number of the line I need to get it's number by clicking... If you have any idea please help me. Thx a lot.

piyush sardhara · Answer

private void richTextBox1_MouseClick( object sender MouseEventArgs e) { int firstcharindex = richTextBox1.GetFirstCharIndexOfCurrentLine(); int currentline = richTextBox1.GetLineFromCharIndex(firstcharindex); string currentlinetext = richTextBox1.Lines[currentline]; richTextBox1.Select(firstcharindex currentlinetext.Length); }