vba - NumericUpDown error message -

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I am a newbie for visual basic and I have a question which is expected to be the simple answer. I have two NumericUpDown buttons and I need to show an error message if the second one is larger than the first (IE "value of the second numericcutdown value should be equal to or greater than the value of the first Numeric down ").

I know that the second part will be 

  MessageBox How do I tell the visual basic to show only this error message when the circumstances are there?

P>

Compare just two values, And show your message when the second message is low. 

  If the numeric UPDown2.Value

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