- Foxtable(狐表) (http://foxtable.net/bbs/index.asp)
-- 专家坐堂 (http://foxtable.net/bbs/list.asp?boardid=2)
---- 引发类型为“System.OutOfMemoryException”的异常。 (http://foxtable.net/bbs/dispbbs.asp?boardid=2&id=140690)
-- 发布时间：2019/9/11 15:16:00
-- 引发类型为“System.OutOfMemoryException”的异常。
运行几十行后错误，再运行几十行又错误，什么原因？一共4000行
Dim dt As DataTable = DataTables("MSDS网址")
Dim iii As Integer
For Each dr As DataRow In dt.Select("_Identify is not null","化学品名称")
dr("第六列") = iii
If dr.IsNull("代码") = False AndAlso dr.IsNull("代码2") Then
Dim Multi As String = dr("代码")
If Multi <> "" Then
Dim Values() As String
Values = Multi.split("|")
Dim dms As String
For Index As Integer = 0 To Values.Length - 1
If dms <> "" Then
dms = dms & "|" & Values(Index) & "^" & Index
Else
dms = dms & Values(Index) & "^" & Index
End If
Next
dr("代码2") = dms
dr("代码3") = Values.Length - 1
End If
End If
iii = iii + 1
Next
dt.Save()
MessageBox.Show("ok")
-- 发布时间：2019/9/11 15:27:00
--
应该不只是这种代码的原因。到命令窗口单独运行这段代码有没有问题？
systemready = false
1楼的代码
systemready = true
[此贴子已经被作者于2019/9/11 15:28:09编辑过]
-- 发布时间：2019/9/11 16:06:00
--
还是错误
-- 发布时间：2019/9/11 16:20:00
--
实例发上来测试一下
-- 发布时间：2019/9/11 16:30:00
--
改成这样就没有问题。是不是字符合并的问题，太长了
Dim dt As DataTable = DataTables("MSDS网址")
Dim iii As Integer
For Each dr As DataRow In dt.Select("_Identify is not null","化学品名称")
dr("第六列") = iii
If dr.IsNull("代码") = False AndAlso dr.IsNull("代码2") Then
Dim Multi As String = dr("代码")
If Multi <> "" Then
Dim Values() As String
Values = Multi.split("|")
Dim s As new StringBuilder
For Index As Integer = 0 To Values.Length - 1
If Index > 0 Then
s.AppendLine("|" & Values(Index) & "^" & Index)
Else
s.AppendLine(Values(Index) & "^" & Index)
End If
Next
Dim dms As String = s.Tostring
dms = dms.Replace(vbcrlf,"")
dr("代码2") = dms
dr("代码3") = Values.Length - 1
End If
End If
iii = iii + 1
\'Exit For
Next
dt.Save()
MessageBox.Show("ok")
-- 发布时间：2019/9/11 16:52:00
--
应该是的