How to set text in particular place in RichTextBox in c#

Question

I just want to set my text in particular place in RichtextBox in wpf:

richTextBox1.SelectionLength = text_length;

does not work.

Answer 1

please try this.i hope that it will help you.

RichTextBox richtexbox=(RichTextBox)(FindResource("richbox1"));      
richtexbox.Padding = new Thickness(15, 10, 12, 15);