How to get caret/cursor position in RichTextBox in WPF?

Question

I want to get the Caret position in RichTextBox in WPF when I change my cursor with Left Click Mouse Button and this picture below shows this.

I want to the position change when I use right/left/up/down key Without writing The picture i set illustrates this. — Jon

Zhi Zhi · Accepted Answer · 2019-05-29T12:09:41

Get position:

TextPointer tp = EditMessageRTB.Selection.Start;

Set position:

RichTextBox.CaretPosition = tp;

If want to set position to end:

RichTextBox.CaretPosition = RichTextBox.Document.Blocks.LastBlock.ContentEnd;