Either suppress sound or suppress the enter key press?

[Rob.]

I'm still relatively new to programming so bear with me. I'm writing a logic/probability game solver application and I'm nearly done; I'm just working on the ease of use, the interface, etc...

On the game board, I have various NumericUpDown controls that hold values for different cards. When the user enters a value for a previously unknown card, I want them to be able to press enter (while the focus is on the NumericUpDown) and then have the program run the logical/probability tests. I want the user to be able to press enter here and have the same effect as if they had pressed the 'Calculate' button. I have that working, but, when enter is pressed, there is a beep system sound from the NumericUpDown and I don't want the beep sound going off every time the user presses enter.

Here is the code as I had it before looking online:

Private Sub NumericUpDown1_KeyPress(ByVal sender As System.Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) _
        Handles NumericUpDown1.KeyPress
        If e.KeyChar = Chr(13) Then 'Chr(13) = enter key
            CalculateButton_Click(Me, EventArgs.Empty) 'Run calculations
        End If
End Sub

I've looked into a number of methods online but I can't seem to suppress the key press or only mute the sounds from my application (I could mute ALL sounds... but that's no good).

Thanks for any help!