Select Case e.DataCol.Name
Case "款式编号","采购成本金额","结余成本金额","采购数量","结余数量"
Dim dr As DataRow
Dim mr As DataRow = e.DataRow
Dim drs As List(of DataRow)
dr = e.DataTable.Find("[_SortKey] < " & mr("_SortKey") & " And [款式编号] = '" & mr("款式编号") & "'", "[_SortKey] Desc")
If dr Is Nothing Then
mr("结余成本单价") = (mr("采购成本金额")+mr("结余成本金额"))/(mr("采购数量")+mr("结余数量"))
dr = mr
End If
drs = e.DataTable.Select("[_SortKey] >= " & dr("_SortKey") & " And [款式编号] = '" & dr("款式编号") & "'", "[_SortKey]")
For i As Integer = 1 To drs.Count - 1
drs(i)("结余成本单价") = (drs(i-1)("结余成本金额") + drs(i)("采购成本金额"))/(drs(i-1)("结余数量")+drs(i)("采购数量"))
Next
If e.DataCol.Name = "款式编号" AndAlso e.OldValue IsNot Nothing AndAlso e.OldValue <> e.NewValue Then
dr = e.DataTable.Find("[_SortKey] < " & mr("_SortKey") & " And [款式编号] = '" & e.OldValue & "'", "[_SortKey] Desc")
If dr Is Nothing Then
dr = e.DataTable.Find("[款式编号] = '" & e.OldValue & "'", "[_SortKey]")
If dr IsNot Nothing Then
dr("结余成本单价") = (dr("采购成本金额")+dr("结余成本金额"))/(dr("采购数量")+dr("结余数量"))
End If
End If
If dr IsNot Nothing Then
drs = e.DataTable.Select("[_SortKey] >= " & dr("_SortKey") & " And [款式编号] = '" & dr("款式编号") & "'", "[_SortKey]")
For i As Integer = 1 To drs.Count - 1
drs(i)("结余成本单价") = (drs(i-1)("结余成本金额") + drs(i)("采购成本金额"))/ (drs(i-1)("结余数量")+drs(i)("采购数量"))
Next
End If
End If
End Select
Select Case e.DataCol.Name
Case "结余成本单价","零售数量"
e.DataRow("零售成本金额")=e.DataRow("零售数量")*e.DataRow("结余成本单价")
End Select
Select Case e.DataCol.Name
Case "结余成本单价","结余数量"
e.DataRow("结余成本金额")=e.DataRow("结余数量")*e.DataRow("结余成本单价")
End Select