Refering to an instance of a class from within a shared method

Hi,

I am trying to call a destination email address from an instance of a class but keep getting the error message:

"Cannot refer to an instance member of a class from within a shared method or shared member initializer without an explicit instance of the class."

Line 456:            Dim emailTo As String
Line 457:            Dim vac As Vacancy
Line 458:            vac = Vacancy.GetVacancy(_VacancyId, False)
Line 459:            emailTo = vac.EmailTo


My code is as below, :

' Find the destination email address (calls GetVacancy here to get the emailTo field value)

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