专家坐堂-[求助]成绩公式如何写?Foxtable(狐表) - 新一代数据库软件，完美融合Access、Foxpro、Excel、vb.net之优势，人人都能掌握的快速软件开发工具!

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--  专家坐堂  (http://foxtable.com/bbs/list.asp?boardid=2)
----  [求助]成绩公式如何写?  (http://foxtable.com/bbs/dispbbs.asp?boardid=2&id=91103)

--  作者：大雪山
--  发布时间：2016/9/29 14:32:00
--  [求助]成绩公式如何写?
按学号将课程名成绩横排到成绩1的公式怎么写?
下载信息  [文件大小：   下载次数： ]
点击浏览该文件:成绩.table

--  作者：有点蓝
--  发布时间：2016/9/29 14:50:00
--
参考：http://www.foxtable.com/webhelp/scr/2965.htm

--  作者：大雪山
--  发布时间：2016/9/29 15:47:00
--

1.多增加一个学号字段,这公式怎么改? 2.表B是临时表,想改成正常的

Dim dtb As New DataTableBuilder("表B")
dtb.AddDef("姓名", Gettype(String), 32)
For Each v As String In DataTables("表A").GetValues("课程")
    dtb.AddDef(v, Gettype(Double))
Next
dtb.Build()
For Each v As String In DataTables("表A").GetValues("姓名")
    Dim dr1 As DataRow = DataTables("表B").AddNew()
    dr1("姓名") = v
    For Each dr2 As DataRow In DataTables("表A").Select("姓名 = \'" & v & "\'")
        dr1(dr2("课程")) = dr2("分数")
    Next
Next
MainTable = Tables("表B")

[此贴子已经被作者于2016/9/29 16:01:37编辑过]

--  作者：有点蓝
--  发布时间：2016/9/29 16:21:00
--

1、

For Each v As String In DataTables("成绩").GetValues("学号")
Dim dr1 As DataRow = DataTables("成绩1").AddNew()
dr1("学号") = v
Dim drs As List(Of DataRow) = DataTables("成绩").Select("学号 = \'" & v & "\'")
If drs.Count > 0 Then
dr1("姓名") = drs(0)("姓名")
For Each dr2 As DataRow In drs
dr1(dr2("课程")) = dr2("成绩")
Next
End If
Next
MainTable = Tables("成绩1")

2、和1楼项目一样，先创建好表

--  作者：大雪山
--  发布时间：2016/9/30 8:53:00
--

加入学号出错,该如何修改?

Dim dtb As New DataTableBuilder("表B")
dtb.AddDef("班级",Gettype(String),10)
dtb.AddDef("学号",Gettype(String),12)
dtb.AddDef("姓名",Gettype(String),20)
For Each v As String In DataTables("表A").GetValues("课程")
    dtb.AddDef(v, Gettype(Double))
Next
dtb.Build()
For Each v As String() In DataTables("表A").GetValues("班级|姓名")
    Dim dr1 As DataRow = DataTables("表B").AddNew()
    dr1("班级") = v(0)
    dr1("学号") = v(0)
    dr1("姓名") = v(1)
    For Each dr2 As DataRow In DataTables ("表A").Select("班级= \'" & v(0) & "\' And 姓名= \'" & v(1) & "\'")
        dr1(dr2("课程")) = dr2("分数")
    Next
Next

MainTable = Tables("表B")

--  作者：blackzhu
--  发布时间：2016/9/30 9:00:00
--
有没有学号呀?

Dim dtb As New DataTableBuilder("表B")
dtb.AddDef("班级",Gettype(String),10)
dtb.AddDef("学号",Gettype(String),12)
dtb.AddDef("姓名",Gettype(String),20)
For Each v As String In DataTables("表A").GetValues("课程")
    dtb.AddDef(v, Gettype(Double))
Next
dtb.Build()
For Each v As String() In DataTables("表A").GetValues("班级|学号|姓名")
    Dim dr1 As DataRow = DataTables("表B").AddNew()
    dr1("班级") = v(0)
    dr1("学号") = v(1)
    dr1("姓名") = v(2)
    For Each dr2 As DataRow In DataTables ("表A").Select("班级= \'" & v(0) & "\' And 学号=\'" & V(1) & "\' And 姓名= \'" & v(2) & "\'")
        dr1(dr2("课程")) = dr2("分数")
    Next
Next

MainTable = Tables("表B")

--  作者：大雪山
--  发布时间：2016/10/3 12:24:00
--

表达式关联出错,问题如何解决操作呢?

此主题相关图片如下：s84~h}v3s@5$4wadd~d4sxy.png

--  作者：y2287958
--  发布时间：2016/10/3 18:20:00
--

Dim bm As String = "统计表1"
Dim b As New SQLGroupTableBuilder(bm,"成绩")
b.Groups.AddDef("学号")
b.Groups.AddDef("姓名")
For Each kc As String In DataTables("成绩").GetValues("课程","课程 Is not null")
b.Totals.AddExp(kc,"iif(课程=\'" & kc & "\',成绩,0)")
Next
b.Filter = "姓名 is not null"
b.Build
Tables(bm).AutoSizeCols
MainTable = Tables(bm)

--  作者：大雪山
--  发布时间：2016/10/6 17:37:00
--

下载信息  [文件大小：   下载次数： ]
点击浏览该文件:管理项目2.table

下载信息  [文件大小：   下载次数： ]
点击浏览该文件:test.xls

EXCL 表中的buser字段的红色字部分添加到表中的修改公式?我做的加不进去.

--  作者：有点蓝
--  发布时间：2016/10/7 8:33:00
--

Dim dt As DataTable = DataTables("成绩")
Dim Result As DialogResult
Result = MessageBox.Show("确定要导入吗?", "提示", MessageBoxButtons.YesNo, MessageBoxIcon.Question)
If Result = DialogResult.Yes Then
Dim dlg As New OpenFileDialog
dlg.Filter = "Excel文件|*.xls"
dlg.MultiSelect = True \'允许选择多个文件
If dlg.ShowDialog =DialogResult.OK Then
Dim Book As New XLS.Book(dlg.FileName)
Dim Sheet As XLS.Sheet = Book.Sheets("Sheet1")
dt.ResumeRedraw()
dt.StopRedraw()
\'systemready = False
Dim nms As New Dictionary(Of String, Integer)
Dim dic As new Dictionary(Of DataRow, Integer)
Dim ls As new List(Of Integer)
For c As Integer = 0 To sheet.Cols.Count - 1
If dt.DataCols.Contains(sheet(0,c).Text.replace(" ", "")) Then
nms.Add(sheet(0,c).Text.replace(" ", ""), c)
End If
Next
For n As Integer = 1 To Sheet.Rows.Count -1
Dim sfzhm As String = sheet(n,nms("buser")).Text
Dim bid As String = sheet(n,nms("bid")).Text
If sfzhm = "" Then Continue For
Dim dr As DataRow = dt.Find("buser = \'" & sfzhm & "\' and bid=\'" & bid & "\'")
If dr Is Nothing Then
ls.add(n)
Else
dic.Add(dr, n)
End If
Next
For Each key As DataRow In dic.Keys
For Each m As String In nms.keys
If dt.DataCols(m).IsBoolean Then
If Sheet(dic(key),nms(m)).Text = "" OrElse Sheet(dic(key),nms(m)).Text = "False" OrElse Sheet(dic(key),nms(m)).Value = 0 Then
key(m) = False
Else
key(m) = True
End If
Else If dt.DataCols(m).Expression > "" Then
\'表达式列
Else If dt.DataCols(m).IsNumeric Then
key(m) = val(Sheet(dic(key),nms(m)).Value)
Else If dt.DataCols(m).IsDate Then
Dim d As Date
If Date.TryParse(Sheet(dic(key),nms(m)).Value, d)
key(m) = d
End If

Else
key(m) = Sheet(dic(key),nms(m)).Value
End If
Next
Next
For Each l As Integer In ls
Dim ndr As DataRow = dt.AddNew
For Each m As String In nms.keys
If dt.DataCols(m).IsBoolean Then
If Sheet(l,nms(m)).Text = "" OrElse Sheet(l,nms(m)).Text = "False" OrElse Sheet(l,nms(m)).Value = 0 Then
ndr (m) = False
Else
ndr (m) = True
End If
Else If dt.DataCols(m).Expression > "" Then
\'表达式列
Else If dt.DataCols(m).IsNumeric Then
ndr (m) = val(Sheet(l,nms(m)).Value)
Else If dt.DataCols(m).IsDate Then
Dim d As Date
If Date.TryParse(Sheet(l,nms(m)).Value, d)
ndr (m) = d
End If
Else

ndr (m) = Sheet(l,nms(m)).Value
End If
Next
Next
dt.ResumeRedraw()
\'systemready = True
End If
End If