How to get RTF from RichTextBox

Question

How do I get the text in RTF of a RichTextBox? I\'m trying to get like this, but the property does not exist.

RichTextBox rtb = new RichTextBox(         


        

Answer 1

There are 2 RichTextBox classes, one from the winforms framework and one from the WPF framework:

System.Windows.Controls.RichTextBox wpfBox;
System.Windows.Forms.RichTextBox winformsBox;

Only the Winforms RichTextBox has an Rtf property, the other has a Document property which contains a FlowDocument.