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---- 如何在200-300之间随机一次性抽取5个整数 (http://foxtable.com/bbs/dispbbs.asp?boardid=2&id=121759)
-- 发布时间：2018/7/12 16:11:00
-- 如何在200-300之间随机一次性抽取5个整数
老师你好：
如何在200-300之间随机一次性抽取5个整数，并自动增加到表A第二列中？？
-- 发布时间：2018/7/12 16:34:00
--
For i As Integer = 1 To 5
Dim n = Rand.Next(200, 300)
msgbox(n)
Next
-- 发布时间：2018/7/12 19:46:00
--
老师你好：
需求：
1、把随机产生的数据分别填入到各行中。
2、每点击一次，依次填入到“随机测算_1”,“随机测算_2”,“随机测算_3”....
下代码出错：
Dim tb As Table = Tables("投标测算_Table2")
Dim val1 As Double = CDbl(e.Form.Controls("TextBox2").Value)
Dim val2 As Double = CDbl(e.Form.Controls("TextBox3").Value)
Dim dts As List(Of DataRow)
dts = DataTables("投标随机数据").Select("项目编号 = " & tb.Current("项目编号") & "\'")
Dim lst As new List(Of String)
Dim i As Integer
For i = 0 To dts.Count - 1
Dim n = Rand.Next(val1,val2)
lst.Add(n)
Next
For Each rw As Row In tb.Rows
For idx As Integer = 0 To lst.Count -1
rw(i)("随机测算_1") = lst(idx)
Next
Next
此主题相关图片如下：888894208.png
-- 发布时间：2018/7/12 20:51:00
--
Dim tb As Table = Tables("投标测算_Table2")
Dim val1 As Double = CDbl(e.Form.Controls("TextBox2").Value)
Dim val2 As Double = CDbl(e.Form.Controls("TextBox3").Value)
For Each rw As Row In tb.Rows
Dim n = Rand.Next(val1,val2)
rw("随机测算_1") = n
n = Rand.Next(val1,val2)
rw("随机测算_2") = n
n = Rand.Next(val1,val2)
rw("随机测算_3") = n
Next
-- 发布时间：2018/7/13 16:35:00
--
有点甜老师：
4楼的是一次性输入三列，有没有办法“每点击一次，输入一列，并依次填入到“随机测算_1”,“随机测算_2”,“随机测算_3”....直至“随机测算_7为止””
-- 发布时间：2018/7/13 17:59:00
--
Dim tb As Table = Tables("投标测算_Table2")
Dim val1 As Double = CDbl(e.Form.Controls("TextBox2").Value)
Dim val2 As Double = CDbl(e.Form.Controls("TextBox3").Value)
For Each rw As Row In tb.Rows
Dim n = Rand.Next(val1,val2)
For i As Integer = 1 To 7
If rw("随机测算_" & i) = Nothing Then
rw("随机测算_" & i) = n
End If
Next
Next
-- 发布时间：2018/7/14 3:40:00
--
有点甜老师：
有没有办法“每点击一次，只输入一列，并依次填入到“随机测算_1”,“随机测算_2”,“随机测算_3”....直至“随机测算_7为止””，而不是一次性输入七列。
Dim tb As Table = Tables("投标测算_Table2")
Dim val1 As Double = CDbl(e.Form.Controls("TextBox2").Value)
Dim val2 As Double = CDbl(e.Form.Controls("TextBox3").Value)
If val1 = 0 OrElse val2 = 0 Then
MessageBox.Show("请先输入参数范围数据!")
Else
Dim i As Integer = 1
For Each rw As Row In tb.Rows
For Each cl As Col In tb.Cols
If cl.DataCol.Name.StartsWith("随机测算_")
\'For i As Integer = 1 To 7
i += 1
If rw("随机测算_" & i) = Nothing Then
Dim n = Rand.Next(val1,val2)
rw("随机测算_" & i) = n
End If
\'Next
End If
Next
Next
End If
[此贴子已经被作者于2018/7/14 3:40:24编辑过]
-- 发布时间：2018/7/14 8:01:00
--
试试：
Dim tb As Table = Tables("投标测算_Table2")
Dim val1 As Double = CDbl(e.Form.Controls("TextBox2").Value)
Dim val2 As Double = CDbl(e.Form.Controls("TextBox3").Value)
Static i As Integer = 1
For Each rw As Row In tb.Rows
Dim n = Rand.Next(val1,val2)
If rw("随机测算_" & i) = Nothing Then
rw("随机测算_" & i) = n
End If
If i < 7
i += 1
Else
i = 1
End If
Next
Dim val1 As Double = CDbl(e.Form.Controls("TextBox2").Value)
Dim val2 As Double = CDbl(e.Form.Controls("TextBox3").Value)
Static i As Integer = 1
For Each rw As Row In tb.Rows
Dim n = Rand.Next(val1,val2)
If rw("随机测算_" & i) = Nothing Then
rw("随机测算_" & i) = n
End If
If i < 7
i += 1
Else
i = 1
End If
Next
实在不行可以上例子
-- 发布时间：2018/7/14 15:19:00
--
我的需求是： “每点击一次，只输入一列，并依次填入到“随机测算_1”,“随机测算_2”,“随机测算_3”....直至“随机测算_7为止””，而不是一次性输入七列。
此主题相关图片如下：551.png
-- 发布时间：2018/7/14 15:52:00
--
Dim tb As Table = Tables("投标测算_Table2")
Dim val1 As Double = CDbl(e.Form.Controls("TextBox2").Value)
Dim val2 As Double = CDbl(e.Form.Controls("TextBox3").Value)
Static i As Integer = 1
If i < 7
i += 1
Else
i = 1
End If
For Each rw As Row In tb.Rows
Dim n = Rand.Next(val1,val2)
If rw.IsNull("随机测算_" & i) Then
rw("随机测算_" & i) = n
End If
Next