C# Rich Text Box appends string

I apologize if this question has already been answered elsewhere.  I'm having a very difficult time navigating the new site and finding the answers I need in specific subject areas.  That said...

I have a RichTextForm in C# which populates the .rtf property with a literal string.  However, if the form is closed and then reopened, it hangs on to the previous string displayed and adds the string again.  

I'm trying to figure out how to destroy the form and start over each time Print is clicked.  The form is launched from an OnPrint event on a menu bar.

Thanks for any help provided!
NaughtyZuteAsked:
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Gautham JanardhanCommented:
can u post the code
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NaughtyZuteAuthor Commented:
My bad.  I never initialized the string to empty at the start of the concatenation.  Well, actually I did, but like a dummy, I put it as formattedString += "the text";... So it never initialized to blank.

Thanks for the reply.
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