WPF RichTextBox - Selected Block?

Question

I am experimenting with the WPF RichTextBox and notice that I can itterate through the blocks that make up its document by looping through RichTextBox.Document.Blocks.

What is the best way to get the Block that surrounds the caret?

I can get the CaretPosition and the ElementStart and ElementEnd properties of each block but can't see how to compare them because the actual character offsets are not exposed unless I am missing something obvious.

Answer 1

var curCaret = richTextBox1.CaretPosition;
var curBlock = richTextBox1.Document.Blocks.Where(x => x.ContentStart.CompareTo(curCaret) == -1 && x.ContentEnd.CompareTo(curCaret) == 1).FirstOrDefault();