主题：这个统计方法,必须只能统计第一列

这个统计方法 只能将列放在第一个?
我测试了半天,放第一个就可以,放中间就不行?????????????????

Dim t As Table = Tables("订单")
Dim g As SubtotalGroup
t.SubtotalGroups.Clear()
t.GroupAboveData = False
t.TreeVisible = False
g = New SubtotalGroup
g.Aggregate = AggregateEnum.Sum
g.GroupOn = "产品"
g.Caption = "{0}"
t.SubtotalGroups.Add(g)
t.Subtotal()

Dim r As Row
For i As Integer = 0 To t.Rows.Count(True) - 1
    r = t.Rows(i,True)
    If r.IsGroup '如果是分组行
        Dim f As String = "产品 = '" & r("产品") & "'"
        Dim v As String = " 订单数:" & t.Compute("Count(日期)",f)
        v = v & " 订购数量:" & t.Compute("Sum(数量)",f)
        v = v & " 订购金额:" & t.Compute("Sum(金额)",f)
        r("产品") = "产品:" & r("产品") & v
    End If
Next

 搞定了.