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---- 如何通过临时表生成目录树并进行选择 (http://foxtable.net/bbs/dispbbs.asp?boardid=2&id=123433)
-- 发布时间：2018/8/14 16:49:00
-- 如何通过临时表生成目录树并进行选择
1、AfterLoad事件中
Dim dt As DataTable
Dim jb As New SQLJoinTableBuilder("查询表1","招标信息")
jb.AddTable("招标信息","项目编号","标录信息","项目编号")
jb.AddCols("{标录信息}.项目编号","{招标信息}.项目名称","咨询类型","归属部门","投标地区")
dt = jb.Build(True) \'参数设置为True,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,"咨询类型|归属部门|投标地区")
trv.Nodes.Insert("显示所有行",0)
2、
Dim nms As String() = {"咨询类型","归属部门","投标地区"} \'指定生成目录树的各列
Dim qts As String() = {"\'","\'","\'"} \'指定将各列的值括起来的符号,这里都是字符型,所以都是单引号
Dim trv As WinForm.TreeView = e.Sender
Dim flt As String
Dim nd As WinForm.TreeNode
For Each nd In e.node.allNodes \'清除子节点的选中标记
nd.Checked = False
Next
nd = e.Node.ParentNode
Do While nd IsNot Nothing \'清除父节点的选中标记
nd.Checked = False
nd = nd.ParentNode
Loop
For Each nd In trv.AllNodes
If nd.Checked Then
Dim rts() As String = nd.FullPath.Split("\\")
Dim val As String = ""
For i As Integer = 0 To rts.length - 1
If val > "" Then
val = val & " And "
End If
val = val & nms(i) & " = " & qts(i) & rts(i) & qts(i)
Next
If flt > "" Then
flt = flt & " Or (" & val & ")"
Else
flt = val
End If
End If
Next
Tables("标录信息_table1").Filter = flt
我的需求是：通过生成临时表"查询表1"，并生成目录树，根据“项目编号”列进行筛选？如何调整？
| 下载信息 [文件大小： 下载次数： ] | |
 点击浏览该文件:目录树.table |
[此贴子已经被作者于2018/8/14 16:54:20编辑过]
-- 发布时间：2018/8/14 17:48:00
--
| 下载信息 [文件大小： 下载次数： ] | |
| 点击浏览该文件:目录树.table |
-- 发布时间：2018/8/14 18:00:00
--
.NET Framework 版本：2.0.50727.8762
Foxtable 版本：2018.7.23.1
错误所在事件：窗口,标录信息,AfterLoad
详细错误信息：
未将对象引用设置到对象的实例。
[此贴子已经被作者于2018/8/14 18:05:13编辑过]
-- 发布时间：2018/8/14 18:28:00
--
不要设置成自动打开。
照抄代码，afterLoad事件也要写代码。
[此贴子已经被作者于2018/8/14 18:28:37编辑过]
-- 发布时间：2018/8/15 14:48:00
--
老师我从论坛中找一了个示例，但不知道下面红色部分 Tb1.Filter = (1 = 2) 这段代码如何调整
Dim s As String = e.Form.Controls("CheckedComboBox筛选树").Text
\'Dim tb1 As Table = Tables(e.Form.Name & "_Table1")
Dim tb1 As Table = Tables("开标标录台帐_Table1")
Dim Colstr() As String
Dim qts As String() = {"\'","#",""}
Dim trv As WinForm.TreeView = e.Sender
Dim flt As String = ""
Dim nd As WinForm.TreeNode
Dim pd As WinForm.TreeNode
Dim notchecked As Integer = 0
Colstr = s.split("|")
For i As Integer = 0 To Colstr.Length - 1
If Tb1.Cols.Contains(Colstr(i)) = False Then
If trv.Nodes.Count > 0 Then
trv.Nodes.Clear()
End If
\'e.Form.Controls("CheckedComboBox筛选树").Text = "选择筛选列(最好包括拼音)"
Return
End If
Next
If e.Node.Name = "显示所有项目" Then
If e.Node.Checked = True Then
For Each nd In trv.AllNodes
If nd.Name <> "显示所有项目" Then
nd.Checked = False
End If
Next
Tb1.Filter = ""
Else
For Each nd In trv.AllNodes
nd.Checked = False
Next
Tb1.Filter = (1 = 2)
End If
trv.CollapseAll
Return
Else
trv.AllNodes(0).Checked = False
End If
For Each nd In e.node.allNodes
nd.Checked = False
Next
pd = e.Node.ParentNode
Do While pd IsNot Nothing
pd.Checked = False
pd = pd.ParentNode
Loop
-- 发布时间：2018/8/15 14:49:00
--
For Each nd In trv.AllNodes
If nd.Checked Then
Dim rts() As String = nd.FullPath.Split("\\")
Dim val As String = ""
For i As Integer = 0 To rts.length - 1
If Tb1.DataTable.DataCols(Colstr(i)).IsString Then
If rts(i) <> "空" Then
If val > "" Then
val = val & " And "
val = val & Colstr(i) & " = " & qts(0) & rts(i) & qts(0)
Else
val = val & Colstr(i) & " = " & qts(0) & rts(i) & qts(0)
End If
ElseIf rts(i) = "空" Then
If val > "" Then
val = val & " And "
val = val & Colstr(i) & " Is Null"
Else
val = val & Colstr(i) & " Is Null"
End If
End If
ElseIf Tb1.DataTable.DataCols(Colstr(i)).IsDate Then
If rts(i) <> #0001-1-1 0:00:00# Then
If val > "" Then
val = val & " And "
val = val & Colstr(i) & " = " & qts(1) & rts(i) & qts(1)
Else
val = val & Colstr(i) & " = " & qts(1) & rts(i) & qts(1)
End If
ElseIf rts(i) = #0001-1-1 0:00:00# Then
If val > "" Then
val = val & " And "
val = val & Colstr(i) & " Is Null"
Else
val = val & Colstr(i) & " Is Null"
End If
End If
ElseIf Tb1.DataTable.DataCols(Colstr(i)).IsNumeric Then
If rts(i) <> 0 Then
If val > "" Then
val = val & " And "
val = val & Colstr(i) & " = " & qts(2) & rts(i) & qts(2)
Else
val = val & Colstr(i) & " = " & qts(2) & rts(i) & qts(2)
End If
ElseIf rts(i) = 0 Then
If val > "" Then
val = val & " And "
val = val & Colstr(i) & " Is Null"
Else
val = val & Colstr(i) & " Is Null"
End If
End If
ElseIf Tb1.DataTable.DataCols(Colstr(i)).IsBoolean Then
If rts(i) <> False Then
If val > "" Then
val = val & " And "
val = val & Colstr(i) & " = " & qts(0) & True & qts(0)
Else
val = val & Colstr(i) & " = " & qts(0) & True & qts(0)
End If
ElseIf rts(i) = False Then
If val > "" Then
val = val & " And "
val = val & Colstr(i) & " = " & qts(0) & False & qts(0)
Else
val = val & Colstr(i) & " = " & qts(0) & False & qts(0)
End If
End If
End If
Next
If flt > "" Then
flt = flt & " Or (" & val & ")"
Else
flt = val
End If
notchecked + = 1
End If
Next
Dim dt As DataTable = Vars("dt")
Dim nids As String = dt.GetComboListString("系统编号",flt)
If flt > "" AndAlso notchecked > 0 Then
Tb1.Filter = "系统编号 In (\'" & nids.Replace("|","\',\'") & "\')"
Else
Tb1.Filter = (1 = 2)
End If
-- 发布时间：2018/8/15 15:00:00
--
不需要改啊
1、你现在这样写有什么问题？
2、当没有勾选的时候，不就是全部都不显示吗？
-- 发布时间：2018/8/15 15:51:00
--
老师出现二个错误
此主题相关图片如下：919.png
此主题相关图片如下：55049.png
-- 发布时间：2018/8/15 16:15:00
--
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