这就是我正在做的事情。当患者计数为 0 时,它可以工作,但是当它增加时,假设为 1,它会给出错误:“更新或删除查询不包含多值字段。” 有什么问题,请帮帮我。非常感谢。
rs = New ADODB.Recordset
With rs
.Open("Select * from Doctor where DName='" & cmbDoctors.Text & "'", cn, 2, 3)
If .Fields("Patients").Value = 10 Then
MsgBox("All appointments had been taken. Please Select another Doctor.")
Exit Sub
End If
patient = Txtname.Text
If .Fields("Patients").Value = 0 Then
.Fields("Patient0").Value = patient
ElseIf .Fields("Patients").Value = 1 Then
.Fields("Patient1").Value = patient
ElseIf .Fields("Patients").Value = 2 Then
.Fields("Patient2").Value = patient
ElseIf .Fields("Patients").Value = 3 Then
.Fields("Patient3").Value = patient
ElseIf .Fields("Patients").Value = 4 Then
.Fields("Patient4").Value = patient
ElseIf .Fields("Patients").Value = 5 Then
.Fields("Patient5").Value = patient
ElseIf .Fields("Patients").Value = 6 Then
.Fields("Patient6").Value = patient
ElseIf .Fields("Patients").Value = 7 Then
.Fields("Patient7").Value = patient
ElseIf .Fields("Patients").Value = 8 Then
.Fields("Patient8").Value = patient
ElseIf .Fields("Patients").Value = 9 Then
.Fields("Patient9").Value = patient
End If
.Fields("Patients").Value += 1
.Fields("Fees").Value += txtAmount.Text
.Update()
.Close()
End With