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--  专家坐堂  (http://www.foxtable.com/bbs/list.asp?boardid=2)
----  自动输入  (http://www.foxtable.com/bbs/dispbbs.asp?boardid=2&id=191395)

--  作者:wlj88868
--  发布时间:2024/4/14 13:11:00
--  自动输入
 

Dim n As Integer = 14 \'要生成密码长度

Dim str() As String = {"1", "2", "3", "4", "5", "6", "7", "8", "9", "0", "a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l", "m", "n", "o", "p", "q", "r", "s", "t", "u", "v", "w", "x", "y", "z", "A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M", "N", "O", "P", "Q", "R", "S" , "T", "U", "V", "W", "X", "Y", "Z"}

For i As Integer = 1 To str.Length \'洗牌测次数

    Dim n1 As Integer = Rand.Next(str.Length)

    Dim n2 As Integer = Rand.Next(str.Length)

    Dim temp As String = str(n1)

    str(n1) = str(n2)

    str(n2) = temp

Next

Dim s As String = String.Join("", str)

If n > s.Length Then

    n = s.Length

End If

Output.Show(s.Substring(0, n))

 

 

 

老师你好,这个代码要写哪里,我的二维码会增加行的时候自动生成输入,谢谢


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--  作者:有点蓝
--  发布时间:2024/4/14 20:43:00
--  
如果新增一行就马上生成,到datarowadded事件处理。如果是录入其它列的数据比如ID、类别后再生成,到datacolchanged事件处理
--  作者:wlj88868
--  发布时间:2024/4/15 20:29:00
--  

datarowadded就是复制到这里了,,添加行还是没有数据,,,是不是还有加什么代码

上面的代码也是论坛上复制下来的,不会改,,麻烦老师给看看


--  作者:有点蓝
--  发布时间:2024/4/15 21:07:00
--  
先看看:http://www.foxtable.com/webhelp/topics/0625.htmhttp://www.foxtable.com/webhelp/topics/1452.htm

Select Case e.DataCol.Name
    Case
 "ID",
"类别"
        
Dim dr As DataRow = e.DataRow
        
If dr.IsNull("ID"OrElse dr.IsNull("类别"Then
            dr(
"二维码") = Nothing
        
Else

Dim n As Integer = 14 \'要生成密码长度

Dim str() As String = {"1", "2", "3", "4", "5", "6", "7", "8", "9", "0", "a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l", "m", "n", "o", "p", "q", "r", "s", "t", "u", "v", "w", "x", "y", "z", "A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M", "N", "O", "P", "Q", "R", "S" , "T", "U", "V", "W", "X", "Y", "Z"}

For i As Integer = 1 To str.Length \'洗牌测次数

    Dim n1 As Integer = Rand.Next(str.Length)

    Dim n2 As Integer = Rand.Next(str.Length)

    Dim temp As String = str(n1)

    str(n1) = str(n2)

    str(n2) = temp

Next

Dim s As String = String.Join("", str)

If n > s.Length Then

    n = s.Length

End If

            dr("二维码") = s.Substring(0, n)
        End
 
If
End
 Select

如果完全看不懂代码,建议还是话时间学学基础