Find an Replace Text by a RichTextItem

Hello,

Actually I have a problem using RichTextItems. I got an RichTextItem-Field which contains a Table i copied from another RichTextItem. In this Item I got a String “XX1”, which I want to replace by another RichTextItem (which only contains an enumeration).

By using RichTextRange I can replace this String by antoher String but not by a RichTextItem.

I also tried using a RichTextNavigator to set the Position in Front of the String I want to replace, but after the command body.CreateNavigator the navigator is empty, so I can’t use it.

Is there any other way to replace this String? Or just put the RichTextItem into the table?

Thanks,

Mathias