Sending text to a RTB

I just started programming in VB again so I forgot a lot :(. Anyways can anyone tell me how to make a button send text to a RichTextBox? Thanks ahead of time to anyone who replies.

Hi, are you wanting to send a predefined set of text?

Ya, I want to send a numerical value such as; 7 to a richtextbox.

Also forgot to add I'm using VB 2010, also the version is fully up to date.

Easy.....

To replace all the text in the RTB you would use

Code:

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Richtextbox1.Text = "7"

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If you wanted to preserve the text in there and add your own

Code:

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Richtextbox1.Text = Richtextbox1.Text & "7"

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I feel pretty dumb now xD... thanks for the help.