老师您好！统计加载树我想先按部门分组再按年按月按产品，下面的代码没成功，敬请指导
将窗口的AfterLoad事件改为：
'首先生成统计表
Dim dt As DataTable
Dim b As New SQLGroupTableBuilder("统计表1","订单")
b.Groups.AddDef("部门ID")
b.Groups.AddDef("日期", DateGroupEnum.Year, "年")
b.Groups.AddDef("日期",DateGroupEnum.Month,"月")
b.Groups.AddDef("产品")
b.Totals.AddDef("_Identify",AggregateEnum.Count,"订单数")
dt = b.Build(False)
'参数设置为False,生成一个临时表,不在主界面显示
'然后根据统计表生成目录树
Dim trv As
WinForm.TreeView = e.Form.Controls("TreeView1")
trv.BuildTree(dt, "部门ID|年|月|产品")
trv.StopRedraw
For Each nd As WinForm.TreeNode In
trv.AllNodes
Dim Product As String = nd.DataRow("部门ID")
Dim Year As Integer = nd.DataRow("年")
Dim Month As Integer = nd.DataRow("月")
'Dim
Product As String = nd.DataRow("产品")
Select Case nd.Level
Case 0
nd.Text = nd.text & "年(" & dt.Compute("Sum(订单数)","年 =
" & Year) & "条)"
Case 1
nd.Text = nd.text & "月(" & dt.Compute("Sum(订单数)","年 =
" & Year & " And 月 = " & Month) & "条)"
Case 2
nd.Text = nd.text & "(" & nd.DataRow("订单数") & ")"
End Select
Next
trv.Nodes.Insert("加载所有行","加载所有行(" & dt.Compute("Sum(订单数)") & "条)",0)
trv.ResumeRedraw
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Post By：2022/9/24 16:24:00 [只看该作者]
