表事件DataCoIChnged代码,输入数据就弹窗,老师帮忙看看那里错了,谢谢!!
此主题相关图片如下:错误代码截图.png
里面放了两组代码,放一组没事,
'下面代码是用于自动编号
Select e.DataCol.Name
Case "生产日期", "单据代码"
If e.DataRow.IsNull("生产日期") OrElse e.DataRow.IsNull("单据代码") Then
e.DataRow("单据编码") = Nothing
Else
Dim d As Date = e.DataRow("生产日期")
Dim y As Integer = d.Year
Dim m As Integer = d.Month
Dim Days As Integer = Date.DaysInMonth(y, m)
Dim fd As Date = New Date(y, m, 1) '获得该月的第一天
Dim ld As Date = New Date(y, m, Days) '获得该月的最后一天
Dim bh As String = e.DataRow("单据代码") & "-" & Format(d, "yyyyMM") & "" '生成编号的前缀
If e.DataRow("单据编码").StartsWith(bh) = False Then'如果单据编号前缀不符
Dim max As String
Dim idx As Integer
Dim flt As String
flt = "单据代码 = '" & e.DataRow("单据代码") & "' And 生产日期 >= #" & fd & "# And 生产日期 <= #" & ld & "# And [_Identify] <> " & e.DataRow("_Identify")
max = e.DataTable.Compute("Max(单据编码)", flt) '取得该月的相同工程代码的最大单据编号
If max > "" Then '如果存在最大单据编号
idx = CInt(max.Substring(max.length - 3)) + 1 '获得最大单据编号的后四位顺序号,并加1
Else
idx = 1 '否则顺序号等于1
End If
e.DataRow("单据编码") = bh & Format(idx, "0000")
End If
End If
End Select
'下面代码是用于自动填充
If e.DataCol.Name = "批号" Then
If e.NewValue Is Nothing Then
e.DataRow("品名") = Nothing
e.DataRow("型号") = Nothing
e.DataRow("规格") = Nothing
e.DataRow("单价") = Nothing
Else
Dim dr As DataRow
dr = DataTables("订单总表").Find("[批号]= '" & e.NewValue & "'")
If dr IsNot Nothing Then
e.DataRow("品名") = dr("品名")
e.DataRow("型号") = dr("型号")
e.DataRow("规格") = dr("规格")
e.DataRow("单价") = dr("单价")
End If
End If
End If