老师，以下是分别计算余额的代码，您看下
Select Case e.DataCol.Name '实现按照不同账号分别计算余额功能
Case "存货三级明细","入库数量","出库数量","日期"
If e.OldValue <> e.NewValue Then
Dim dr As DataRow
Dim mr As DataRow = e.DataRow
Dim drs As List(of DataRow)
dr = e.DataTable.Find("[_SortKey] < " & mr("_SortKey") & " And [索引标识] = '" & mr("索引标识") & "'", "[_SortKey] Desc")
If dr Is Nothing Then
mr("库存数量") = mr("入库数量") - mr("出库数量")
dr = mr
End If
drs = e.DataTable.Select("[_SortKey] >= " & dr("_SortKey") & " And [索引标识] = '" & dr("索引标识") & "'", "[_SortKey]")
For i As Integer = 1 To drs.Count - 1
drs(i)("库存数量") = drs(i-1)("库存数量") + drs(i)("入库数量") - drs(i)("出库数量")
Next
If e.DataCol.Name = "索引标识" AndAlso e.OldValue IsNot Nothing AndAlso e.OldValue <> e.NewValue Then
dr = e.DataTable.Find("[_SortKey] < " & mr("_SortKey") & " And [索引标识] = '" & e.OldValue & "'", "[_SortKey] Desc")
If dr Is Nothing Then
dr = e.DataTable.Find("[索引标识] = '" & e.OldValue & "'", "[_SortKey]")
If dr IsNot Nothing Then
dr("库存数量") = dr("入库数量") - dr("出库数量")
End If
End If
If dr IsNot Nothing Then
drs = e.DataTable.Select("[_SortKey] >= " & dr("_SortKey") & " And [索引标识] = '" & dr("索引标识") & "'", "[_SortKey]")
For i As Integer = 1 To drs.Count - 1
drs(i)("库存数量") = drs(i-1)("库存数量") + drs(i)("入库数量") - drs(i)("出库数量")
Next
End If
End If
End If
End Select
加好友 
发短信
Post By：2020/12/20 14:35:00 [只看该作者]
