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多种存货计价方式集成

热度 3已有 3485 次阅读2009-4-23 13:19 |个人分类:习作|

Private Sub 计算_Click()
If IsNull(Me.物资ID.Value) Then Exit Sub
Select Case Me.选项
Case 1 '先进先出法
      先后法
Case 2 '后进先出法
      先后法
Case 3 '移动平均法
      移动法
Case 4 '加权平均法
      加权法
End Select
Me.收发存子窗体.Form.Requery
End Sub

Private Sub 先后法()
Dim rs1 As New ADODB.Recordset
Dim sql1 As String
Dim rs2 As New ADODB.Recordset
Dim sql2 As String
Dim 收料数量 As Single
Dim 发料数量 As Single
Dim 累计金额 As Single
Dim 收发余额 As Single
sql1 = "select * from 发料查询 where format(日期,'yymm')='" & Me.月度.Value & "'and 物资ID=" & Me.物资ID.Value
rs1.Open sql1, CurrentProject.Connection, adOpenKeyset, adLockOptimistic
If Me.选项.Value <> 2 Then
sql2 = "select * from 库存及收料查询 where format(日期,'yymm')='" & Me.月度.Value & "'and 物资ID=" & Me.物资ID.Value
Else
sql2 = "select * from 库存及收料查询 where format(日期,'yymm')='" & Me.月度.Value & "'and 物资ID=" & Me.物资ID.Value & " ORDER BY 编号 DESC"
End If
rs2.Open sql2, CurrentProject.Connection, adOpenKeyset, adLockOptimistic
收发余额 = 0
Do While Not (rs1.EOF)
If 收发余额 > 0 Then
      收料数量 = 收发余额
      收发余额 = 0
Else
      收料数量 = rs2("数量")
End If
If rs1("数量") < 收料数量 Then
      rs1("单价") = rs2("单价")
      rs1("金额") = rs1("数量") * rs1("单价")
      rs1.Update
      收发余额 = 收料数量 - rs1("数量")
Else
      累计金额 = 0
      发料数量 = rs1("数量")
      Do While Not (rs2.EOF)
         累计金额 = 累计金额 + 收料数量 * rs2("单价")
         发料数量 = 发料数量 - 收料数量
         rs2.MoveNext
         收料数量 = rs2("数量")
         If 发料数量 < 收料数量 Then
            累计金额 = 累计金额 + 发料数量 * rs2("单价")
            rs1("金额") = 累计金额
            rs1("单价") = Round(rs1("金额") / rs1("数量"), 2)
            rs1.Update
            收发余额 = rs2("数量") - 发料数量
            Exit Do
         End If
      Loop
End If
rs1.MoveNext
Loop
Me.收发子窗体.Form.Requery
rs1.Close
rs2.Close
End Sub

Private Sub 移动法()
Dim rs1 As New ADODB.Recordset
Dim sql1 As String
Dim rs2 As New ADODB.Recordset
Dim sql2 As String
Dim 累计数量 As Single
Dim 累计金额 As Single
Dim 库存数量 As Single
Dim 库存金额 As Single
Dim i As Long
sql1 = "select * from 发料查询 where format(日期,'yymm')='" & Me.月度.Value & "'and 物资ID=" & Me.物资ID.Value
rs1.Open sql1, CurrentProject.Connection, adOpenKeyset, adLockOptimistic
sql2 = "select * from 库存及收料查询 where format(日期,'yymm')='" & Me.月度.Value & "'and 物资ID=" & Me.物资ID.Value
rs2.Open sql2, CurrentProject.Connection, adOpenKeyset, adLockOptimistic
库存数量 = 0
库存金额 = 0
For i = 1 To rs1.RecordCount
累计数量 = 库存数量
累计金额 = 库存金额
Do While Not (rs2.EOF)
      If rs2("编号").Value < rs1("编号").Value Then
         累计数量 = 累计数量 + rs2("数量")
         累计金额 = 累计金额 + rs2("金额")
         rs2.MoveNext
      Else
         rs2.MovePrevious
         Exit Do
      End If
Loop
      rs1("单价") = Round(累计金额 / 累计数量, 2)
      rs1("金额") = rs1("数量") * rs1("单价")
      rs1.Update
      库存数量 = 累计数量 - rs1("数量")
      库存金额 = 累计金额 - rs1("金额")
If rs2.EOF = False Then rs2.MoveNext
rs1.MoveNext
Next
Me.收发子窗体.Form.Requery
rs1.Close
rs2.Close
End Sub

Private Sub 加权法()
Dim rs1 As New ADODB.Recordset
Dim sql1 As String
Dim rs2 As New ADODB.Recordset
Dim sql2 As String
Dim 累计数量 As Single
Dim 累计金额 As Single
Dim 单价 As Single
sql1 = "select * from 发料查询 where format(日期,'yymm')='" & Me.月度.Value & "'and 物资ID=" & Me.物资ID.Value
rs1.Open sql1, CurrentProject.Connection, adOpenKeyset, adLockOptimistic
sql2 = "select * from 库存及收料查询 where format(日期,'yymm')='" & Me.月度.Value & "'and 物资ID=" & Me.物资ID.Value
rs2.Open sql2, CurrentProject.Connection, adOpenKeyset, adLockOptimistic
累计数量 = 0
累计金额 = 0
For i = 1 To rs2.RecordCount
累计数量 = 累计数量 + rs2("数量")
累计金额 = 累计金额 + rs2("金额")
rs2.MoveNext
Next
单价 = Round(累计金额 / 累计数量, 2)
For i = 1 To rs1.RecordCount
rs1("单价") = 单价
rs1("金额") = rs1("数量") * rs1("单价")
rs1.Update
rs1.MoveNext
Next
Me.收发子窗体.Form.Requery
rs1.Close
rs2.Close
End Sub