Kod:
Me.txt_sonuc =IIF(IsNull(Me.cb_d2) And IsNull(Me.cb_d3),"seçim yapın",IIF(Me.cb_d1 = "Mehmet",IIf(IsNull(Me.cb_d2), 0, Me.cb_d2) + IIf(IsNull(Me.cb_d3), 0, Me.cb_d3),IIf(IsNull(Me.cb_d2), 0, Me.cb_d2) - IIf(IsNull(Me.cb_d3), 0, Me.cb_d3)))
bilginize...iyi çalışmalar,saygılar.