Dim dt As DataTable = DataTables("成绩")
Dim Arys As List(Of String()) = dt.GetValues("考试名称|学校代码|年级代码")
For Each Ary As String() In Arys
Dim drs As List(Of DataRow) = dt.Select("[考试名称] = '" & ary(0) & "'And [学校代码] = '" & ary(1) & "'and [年级代码] ='" & ary(2) & "'", "折总 DESC")
For n As Integer = 0 To drs.Count - 1 '遍历所有行
If n > 0 AndAlso drs(n)("折总") = drs(n-1)("折总") Then '如果总分和上一行相同
drs(n)("校序") = drs(n-1)("校序") '则排名等于上一行
Else
drs(n)("校序") = n + 1 '设置排名
End If
Next
Next
Dim Arys1 As List(Of String()) = dt.GetValues("考试名称|学校代码|年级代码|班级")
For Each Ary1 As String() In Arys1
Dim drs As List(Of DataRow) = dt.Select("[考试名称] = '" & ary1(0) & "'And [学校代码] = '" & ary1(1) & "'and [年级代码] ='" & ary1(2) & "'And [班级] = '" & ary1(3) & "'", "折总 DESC")
For m As Integer = 0 To drs.Count - 1 '遍历所有行
If m > 0 AndAlso drs(m)("折总") = drs(m-1)("折总") Then '如果总分和上一行相同
drs(m)("班序") = drs(m-1)("班序") '则排名等于上一行
Else
drs(m)("班序") = m + 1 '设置排名
End If
Next
Next
dt.save()
老师，我改了个代码是想对成绩进行后台排名次，因为现在这样只能对加载了的数据排序，问题就会造成每次因加载的数据不一样，排序结果就变了，请老师指导下如何能直接后台把名次排出来。请指教
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Post By：2016/11/29 14:37:00 [只看该作者]
