代码同Excel类似

Dim arr()
Dim ID As String
Dim DJ As Long



Private Sub CommandButton1_Click()



If Me.ListBox1.Value <> "" And Me.ListBox2.Value <> "" And Me.ListBox3.Value <> "" And Me.TextBox1 > 0 Then
Me.ListBox4.AddItem
Me.ListBox4.List(Me.ListBox4.ListCount - 1, 0) = ID
Me.ListBox4.List(Me.ListBox4.ListCount - 1, 1) = Me.ListBox1.Value
Me.ListBox4.List(Me.ListBox4.ListCount - 1, 2) = Me.ListBox2.Value
Me.ListBox4.List(Me.ListBox4.ListCount - 1, 3) = Me.ListBox3.Value
Me.ListBox4.List(Me.ListBox4.ListCount - 1, 4) = Me.TextBox1.Value
Me.ListBox4.List(Me.ListBox4.ListCount - 1, 5) = Me.TextBox1.Value * Me.Label2.Caption
Else

MsgBox "请正确选择商品"
End If

Me.Label5.Caption = Me.Label5.Caption + Me.TextBox1.Value * Me.Label2.Caption



End Sub

Private Sub CommandButton2_Click()
For i = 0 To Me.ListBox4.ListCount - 1
    If Me.ListBox4.Selected(i) = True Then
        Me.Label5.Caption = Me.Label5.Caption - Me.ListBox4.List(i, 5)
        Me.ListBox4.RemoveItem i
    End If
Next
End Sub

Private Sub CommandButton3_Click()
Dim DDID As String
Dim conn As New ADODB.Connection
Dim str As String

If Me.ListBox4.ListCount > 0 Then

DDID = "D" & Format(VBA.Now, "yyyymmddhhmmss")
conn.Open "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=D:\data\bak.mp3"

'将订单信息抓取到ACCESS'
For i = 0 To Me.ListBox4.ListCount - 1
str = " ('" & DDID & "','" & Date & "','" & Me.ListBox4.List(i, 0) & "'," & Me.ListBox4.List(i, 4) & "," & Me.ListBox4.List(i, 5) & ")"
conn.Execute ("insert into [销售记录] (订单号,日期,产品编号,数量,金额) values" & str)
Next


conn.Close

MsgBox "结算成功"
Unload Me

Else

MsgBox "购物清单为空"
End If

End Sub
Private Sub ListBox1_Click()
Dim dic
Set dic = CreateObject("Scripting.Dictionary")
Me.ListBox2.Clear

For i = LBound(arr) To UBound(arr)
    If arr(i, 2) = Me.ListBox1.Value Then
        dic(arr(i, 3)) = 1
    End If
Next

Me.ListBox2.List = dic.keys
Me.ListBox3.Clear
Me.Label2.Caption = 0

End Sub

Private Sub ListBox2_Click()

Dim dic

Me.ListBox3.Clear
Set dic = CreateObject("Scripting.Dictionary")

For i = LBound(arr) To UBound(arr)
    If arr(i, 2) = Me.ListBox1.Value And arr(i, 3) = Me.ListBox2.Value Then
        dic(arr(i, 4)) = 1
    End If
Next

Me.ListBox3.List = dic.keys
Me.Label2.Caption = 0


End Sub

Private Sub ListBox3_Click()

For i = LBound(arr) To UBound(arr)

    If arr(i, 2) = Me.ListBox1.Value And arr(i, 3) = Me.ListBox2.Value And arr(i, 4) = Me.ListBox3.Value Then
        ID = arr(i, 1)
        DJ = arr(i, 5)
    End If
Next

Me.Label2.Caption = DJ


End Sub

Private Sub UserForm_Activate()
Dim dic
arr = Sheet1.Range("b2:f" & Sheet1.Range("a65536").End(xlUp).Row)
Set dic = CreateObject("Scripting.Dictionary")

For i = LBound(arr) To UBound(arr)
    dic(arr(i, 2)) = 1
Next
Me.ListBox1.List = dic.keys
End Sub

改进的地方1

改进2 -- 抓取产品信息

Private Sub Workbook_Open()
Dim conn As New ADODB.Connection

'每次打开时清空表，保证是最新的数据'
Sheet1.Range("a2:f1000").ClearContents

conn.Open "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=D:\data\bak.mp3"

'抓取产品信息'
Sheet1.Range("a2").CopyFromRecordset conn.Execute("select * from [产品信息]")

conn.Close
End Sub