If e.DataCol.Name = "加工要求"
If e.DataRow.IsNull("加工要求")
e.DataRow("成本预算") = Nothing
Else
Dim s As String = "工序名称='" & e.DataRow("加工要求").Replace(",","' Or 工序名称='") & "'"
e.DataRow("成本预算") = DataTables("工序单价").Compute ("Sum(工序单价)",s)
End If
这个条件语句看懂是什么意思:Dim s As String = "工序名称='" & e.DataRow("加工要求").Replace(",","' Or 工序名称='") & "'"