专家坐堂-加载树显示统计数据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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-  Foxtable(狐表)  (http://foxtable.net/bbs/index.asp)
--  专家坐堂  (http://foxtable.net/bbs/list.asp?boardid=2)
----  加载树显示统计数据  (http://foxtable.net/bbs/dispbbs.asp?boardid=2&id=43776)

--  作者：Liangcai
--  发布时间：2013/12/14 22:34:00
--  加载树显示统计数据

Dim cmd As New SQLCommand
Dim dt As DataTable
cmd.CommandText = "SELECT 产品,客户,雇员, Count([_Identify]) As 订单数 From {订单} Group By 产品,客户,雇员"
dt = cmd.ExecuteReader()
Dim trv As WinForm.TreeView = e.Form.Controls("TreeView1")
trv.BuildTree(dt, "产品|客户|雇员")
trv.StopRedraw
For Each nd As WinForm.TreeNode In trv.AllNodes
    Dim Value()As String
    Dim Filter As String

    Value = nd.FullName.Split("\\") \'注意这里用FullName属性,不能用FullPath属性
    Select Case nd.Level
        Case 0
            nd.text = nd.text & "产品"
            Filter = "产品 = " & value(0)
        Case 1
            nd.text = nd.text & "客户"
            Filter = "产品 = " & value(0) & " And 客户 = " & value(1)
        Case 2
            Filter = "产品 = " & value(0) & " And 客户 = " & value(1) & " And 雇员 = \'" & Value(2) & "\'"
    End Select
    nd.Text = nd.text & "(" & dt.Compute("Sum(订单数)",Filter) & "条)"
Next
trv.Nodes.Insert("加载所有行","加载所有行(" & dt.Compute("Sum(订单数)") & "条)",0)
trv.ResumeRedraw

怎么不能实现?请指教

--  作者：有点甜
--  发布时间：2013/12/14 23:02:00
--
呃，哪里不行？

--  作者：Liangcai
--  发布时间：2013/12/14 23:10:00
--

师傅出现这样错误

此主题相关图片如下：qq截图20131214230941.png

[此贴子已经被作者于2013-12-15 10:30:49编辑过]

--  作者：有点甜
--  发布时间：2013/12/15 20:30:00
--
条件需要加入单引号

Select Case nd.Level
Case 0
nd.text = nd.text & "产品"
Filter = "产品 = \'" & value(0) & "\'"
Case 1
nd.text = nd.text & "客户"
Filter = "产品 = \'" & value(0) & "\' And 客户 = \'" & value(1) & "\'"
Case 2
Filter = "产品 = \'" & value(0) & "\' And 客户 = \'" & value(1) & "\' And 雇员 = \'" & Value(2) & "\'"
End Select

--  作者：Liangcai
--  发布时间：2013/12/15 22:10:00
--

Dim cmd As New SQLCommand
Dim dt As DataTable
cmd.CommandText = "SELECT 产品,客户,雇员, Count([_Identify]) As 订单数 From {订单} WHERE 产品 = \'PD01\' Group By 产品,客户,雇员"
dt = cmd.ExecuteReader()
Dim trv As WinForm.TreeView = e.Form.Controls("TreeView1")
trv.BuildTree(dt, "产品|客户|雇员")
trv.StopRedraw
For Each nd As WinForm.TreeNode In trv.AllNodes
    Dim Value()As String
    Dim Filter As String

    Value = nd.FullPath.Split("\\") \'注意这里用FullName属性,不能用FullPath属性
Select Case nd.Level
    Case 0
        nd.text = nd.text & "产品"
        Filter = "产品 = \'" & value(0) & "\'"
    Case 1
        nd.text = nd.text & "客户"
        Filter = "产品 = \'" & value(0) & "\' And 客户 = \'" & value(1) & "\'"
    Case 2
        Filter = "产品 = \'" & value(0) & "\' And 客户 = \'" & value(1) & "\' And 雇员 = \'" & Value(2) & "\'"
End Select
    nd.Text = nd.text & "(" & DataTables("订单").Compute("Count([_Identify])",Filter) & "条)"
Next
trv.ResumeRedraw

生成结果只能产品统计,客户、雇员没有统计

此主题相关图片如下：qq截图20131215220837.png

--  作者：有点甜
--  发布时间：2013/12/15 22:14:00
--

Dim cmd As New SQLCommand
Dim dt As DataTable
cmd.CommandText = "SELECT 产品,客户,雇员, Count([_Identify]) As 订单数 From {订单} WHERE 产品 = \'PD01\' Group By 产品,客户,雇员"
dt = cmd.ExecuteReader()
Dim trv As WinForm.TreeView = e.Form.Controls("TreeView1")
trv.BuildTree(dt, "产品|客户|雇员")
trv.StopRedraw
For Each nd As WinForm.TreeNode In trv.AllNodes
    Dim Value()As String
    Dim Filter As String
    Value = nd.FullName.Split("\\") \'注意这里用FullName属性,不能用FullPath属性
Select Case nd.Level
    Case 0
        nd.text = nd.text & "产品"
        Filter = "产品 = \'" & value(0) & "\'"
    Case 1
        nd.text = nd.text & "客户"
        Filter = "产品 = \'" & value(0) & "\' And 客户 = \'" & value(1) & "\'"
    Case 2
        Filter = "产品 = \'" & value(0) & "\' And 客户 = \'" & value(1) & "\' And 雇员 = \'" & Value(2) & "\'"
End Select
    nd.Text = nd.text & "(" & DataTables("订单").Compute("Count([_Identify])",Filter) & "条)"
Next
trv.ResumeRedraw

--  作者：Liangcai
--  发布时间：2013/12/15 22:31:00
--

谢谢