我正在尝试使用dlookup从表单检查表中的isl值是否是抗性

Question

我正在尝试在表中查找特定患者ID的值，并查看该患者是否具有“抗性”值。如果是这样，则禁用表单上的特定按钮。我尝试了以下dlookup，但它给了我编译器错误：

If DLookup("Rifampicin", "TableGeneXpert", "[PatientID] = " & Forms.FrmTreatment!PatientID) = Resistant Then
    Me.btnDSTMatch.Enabled = True
Else
    Me.btnDSTMatch.Enabled = False 

Answer 1

尝试使用：

If DLookup("Rifampicin", "TableGeneXpert", "[PatientID] = " & Forms.FrmTreatment!PatientID & "") = "Resistant" Then
    Me.btnDSTMatch.Enabled = True
Else
    Me.btnDSTMatch.Enabled = False 
End If

或者也许直接：

Me.btnDSTMatch.Enabled = IsNull(DLookup("Rifampicin", "TableGeneXpert", "[PatientID] = " & Forms.FrmTreatment!PatientID & " And [Rifampicin] = 'Resistant'"))