Detecting Left Mouse Button and Shift

How can I determine when the left mouse button and shift key are pressed at the same time?

Code:

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If Me.MouseButtons.Left And Me.ModifierKeys = Keys.Shift Then
        msgbox("You pressed the shift key and click the left mouse button")     
End If

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Put this in whatever event you'd like:)

I wound up putting this code in the mousedown event of my datagrid control:

If e.Button = MouseButtons.Left And Me.ModifierKeys =
_Keys.Shift Then
MsgBox("You pressed Shift + Left Mouse Button")
End If