Best way to use Dispose / IDisposable - no unmanaged code

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C#

I have a simple class that inherits from TextBox and has a member variable
ErrorProvider m_ErrorProvider

ErrorProvider has a dispose method so I've implemented IDisposable and my Dispose method is simply

void IDisposable.Dispose()<br />{<br />    m_ErrorProvider.Dispose();<br />    base.Dispose();<br />}

Is this sufficient?