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--  专家坐堂  (http://foxtable.net/bbs/list.asp?boardid=2)
----  查询表  (http://foxtable.net/bbs/dispbbs.asp?boardid=2&id=162912)

--  作者：采菊东篱下
--  发布时间：2021/4/17 10:10:00
--  查询表

此主题相关图片如下：11111.png

我想做一下这样的查询表，这样写，表上不显示数据！
Dim Filter As String
With e.Form.Controls("ComboBox1")
If .Value IsNot Nothing Then
Filter = "分类 = \'" & .Value & "\'"
End If
End With
With e.Form.Controls("DateTimePicker1")
If .Value IsNot Nothing Then
If Filter > "" Then
Filter = Filter & " And "
End If
Filter = Filter & "Month(日期) = \'" & Month(.Value) & "\'"
End If
End With
With e.Form.Controls("DropBox1")
If .Value IsNot Nothing Then
If Filter >"" Then
Filter = Filter & " And "
End If
Filter = Filter & "车牌号码 = \'" & .Value & "\'"
End If
End With
With e.Form.Controls("StartDate")
If .Value IsNot Nothing Then
If Filter >"" Then
Filter = Filter & " And "
End If
Filter = Filter & "缴费_月租_起计日期 >= #" & .Value & "#"
End If
End With
With e.Form.Controls("EndDate")
If .Value IsNot Nothing Then
If Filter >"" Then
Filter = Filter & " And "
End If
Filter = Filter & "缴费_月租_止计日期 <= #" & .Value & "#"
End If
End With
With DataTables("车辆缴费情况查询_Table1")
If Filter > "" Then
LockBaseMainForm() \'锁定主界面
.StopRedraw()
For i As Integer = .DataRows.count - 1 To 0 Step -1
.DataRows(i).Delete
Next
.LoadFilter = Filter
.LoadOrder = "日期"
.Load()
.ResumeRedraw()
UnLockBaseMainForm() \'解锁主界面
End If
End With

--  作者：有点蓝
--  发布时间：2021/4/17 10:32:00
--
去掉下面代码，重新加载会自动移除之前的数据，不需要多此一举，数据都删除了，还显示什么！

For i As Integer = .DataRows.count - 1 To 0 Step -1
.DataRows(i).Delete
Next

如果不做分页，下面也去掉，根本没有用
.LoadOrder = "日期"

--  作者：采菊东篱下
--  发布时间：2021/4/17 11:01:00
--
安日期排序啊，数据源是分页加载的。

--  作者：有点蓝
--  发布时间：2021/4/17 11:18:00
--
LoadOrder是用来在分页取数据的时候排序的，需要配合LoadPage使用，不是用来给界面排序的。麻烦有空多看看理解帮助文档
[此贴子已经被作者于2021/4/17 11:18:44编辑过]

--  作者：采菊东篱下
--  发布时间：2021/4/17 11:20:00
--
比如已经加载过一次，又重选条件，再点查询按钮就要把已经加载的数据清除，改为这样还是不行：
Dim Filter As String
With e.Form.Controls("ComboBox1")
If .Value IsNot Nothing Then
Filter = "分类 = \'" & .Value & "\'"
End If
End With
With e.Form.Controls("DateTimePicker1")
If .Value IsNot Nothing Then
If Filter > "" Then
Filter = Filter & " And "
End If
Filter = Filter & "Month(日期) = \'" & Month(.Value) & "\'"
End If
End With
With e.Form.Controls("DropBox1")
If .Value IsNot Nothing Then
If Filter > "" Then
Filter = Filter & " And "
End If
Filter = Filter & "车牌号码 = \'" & .Value & "\'"
End If
End With
With e.Form.Controls("StartDate")
If .Value IsNot Nothing Then
If Filter > "" Then
Filter = Filter & " And "
End If
Filter = Filter & "缴费_月租_起计日期 >= #" & .Value & "#"
End If
End With
With e.Form.Controls("EndDate")
If .Value IsNot Nothing Then
If Filter > "" Then
Filter = Filter & " And "
End If
Filter = Filter & "缴费_月租_止计日期 <= #" & .Value & "#"
End If
End With
With DataTables("车辆缴费情况查询_Table1")
If Filter > "" Then
If DataTables.Contains("车辆缴费情况查询_Table1") = False Then
For i As Integer = .DataRows.count - 1 To 0 Step -1
.DataRows(i).Delete
Next
Else
LockBaseMainForm() \'锁定主界面
.StopRedraw()
.LoadFilter = Filter
.LoadOrder = "日期"
.Load()
.ResumeRedraw()
UnLockBaseMainForm() \'解锁主界面
End If
End If
End With

--  作者：有点蓝
--  发布时间：2021/4/17 11:26:00
--

With DataTables("车辆缴费情况查询_Table1")
LockBaseMainForm() \'锁定主界面
.StopRedraw()
.LoadFilter = Filter
.Load()
.ResumeRedraw()
UnLockBaseMainForm() \'解锁主界面
End With

--  作者：采菊东篱下
--  发布时间：2021/4/17 12:08:00
--
不行，还是没数据显示。

--  作者：有点蓝
--  发布时间：2021/4/17 13:42:00
--
说明没有符合条件的数据：

msgbox(Filter)

--  作者：采菊东篱下
--  发布时间：2021/4/19 17:09:00
--
月租和临时停放在缴费情况表中分开在不同的列显示，现在我想做一个查询表

此主题相关图片如下：41902.png

此主题相关图片如下：41901.png

这样写，没数据显示：
With e.Form.Controls("ComboBox1")
If .Value = e.Form.Controls("ComboBox1").Items(0)
Dim Filter As String
Filter = "分类 = \'" & .Value & "\'"
With e.Form.Controls("StartDate")
If .Value IsNot Nothing Then
If Filter >"" Then
Filter = Filter & " And "
End If
Filter = Filter & "缴费_月租_起计日期 >= #" & .Value & "#"
End If
End With
With e.Form.Controls("EndDate")
If .Value IsNot Nothing Then
If Filter >"" Then
Filter = Filter & " And "
End If
Filter = Filter & "缴费_月租_止计日期 <= #" & .Value & "#"
End If
End With
With e.Form.Controls("DropBox1")
If .Value IsNot Nothing Then
If Filter > "" Then
Filter = Filter & " And "
End If
Filter = Filter & "车牌号码 = \'" & .Value & "\'"
End If
End With
With DataTables("安所属日期查询_Table1")
If Filter > "" Then
LockBaseMainForm() \'锁定主界面
.StopRedraw()
.LoadFilter = Filter
.Load()
.ResumeRedraw()
UnLockBaseMainForm() \'解锁主界面
End If
End With
ElseIf .Value = e.Form.Controls("ComboBox1").Items(1)
Dim Filter1 As String
Filter1 = "分类 = \'" & .Value & "\'"
With e.Form.Controls("StartDate")
If .Value IsNot Nothing Then
If Filter1 >"" Then
Filter1 = Filter1 & " And "
End If
Filter1 = Filter1 & "缴费_临时停放_起计时间 >= #" & .Value & "#"
End If
End With
With e.Form.Controls("EndDate")
If .Value IsNot Nothing Then
If Filter1 >"" Then
Filter1 = Filter1 & " And "
End If
Filter1 = Filter1 & "缴费_临时停放_止计时间 <= #" & .Value & "#"
End If
End With
With e.Form.Controls("DropBox1")
If .Value IsNot Nothing Then
If Filter1 > "" Then
Filter1 = Filter1 & " And "
End If
Filter1 = Filter1 & "车牌号码 = \'" & .Value & "\'"
End If
End With
With DataTables("安所属日期查询_Table1")
If Filter1 > "" Then
LockBaseMainForm() \'锁定主界面
.StopRedraw()
.LoadFilter = Filter1
.Load()
.ResumeRedraw()
UnLockBaseMainForm() \'解锁主界面
End If
End With
End If
End With

--  作者：有点蓝
--  发布时间：2021/4/19 17:21:00
--

没有符合条件的数据

msgbox(Filter)
msgbox(Filter1)