Say you create a new document and insert a hyperlink, using RadRichTextBox.InsertHyperlink, then try to Undo that using RadRichTextBox.Undo.  You get a nasty, untrappable "NullReferenceException:  FromElement must not be null".  What is interesting is that this only happens if the hyperlink is the first thing on a line/paragraph.  It works just fine as long as there's something to the left of it (even just a space).

Putting the RadRichTextBox.Undo() call inside a Try/Catch does not catch the exception in either debug or runtime.

Any thoughts/suggestions?

- Ken

Hello Ken,

Thank you for writing.

We are aware of this issue and it will be addressed in our upcoming major release Q1 2013 scheduled for the second half of February. Due to the nature of the issue I am not able to provide you with a workaround for the time being. 

We will appreciate your feedback on the new release when it is ready and made public. Do not hesitate to contact us back if you need anything else.

Kind regards,
Plamen
the Telerik team

Plamen,

I appreciate the response.  I anxiously await your major release.  This bug is preventing me from moving forward with my project.  So as soon as this release is available, please let me know.

Many thanks.

- Ken

Hi Ken,

I am writing to inform you that the release is already out. Feel free to download it and give it a try.

Greetings,
Stefan
the Telerik team