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---- [求助]出现下列错误，找不到原因，请专家指导， (http://foxtable.net/bbs/dispbbs.asp?boardid=2&id=191559)
-- 发布时间：2024/4/22 9:03:00
-- [求助]出现下列错误，找不到原因，请专家指导，
出现下述错误：
此主题相关图片如下：截图00.jpg
-- 发布时间：2024/4/22 9:07:00
--
在窗口控件事件textchanged中运行下列代码时，出错
代码如下：Dim tian As WinForm.ComboBox = e.Form.Controls("天数")
Dim mss As WinForm.ComboBox = e.Form.Controls("面试室")
Dim wlmc As WinForm.ComboBox = e.Form.Controls("首字母")
If tian.value = Nothing Or mss.value = Nothing Then
Tables("号对人_号对人").Filter= "首字母 like \'*" & wlmc.Text & "*\'"
ElseIf tian.value IsNot Nothing And mss.value = Nothing Then
Tables("号对人_号对人").Filter="天数 = \'" & tian.Text & "\'And 面试序号 Is null And 首字母 Like \'*" & wlmc.Text & "*\'"
ElseIf tian.value IsNot Nothing And mss.value IsNot Nothing Then
Tables("号对人_号对人").Filter="天数 = \'" & tian.Text & "\' and 面试室 = \'" & mss.Text & "\'and 面试序号 is null and 首字母 like \'*" & wlmc.Text & "*\'"
End If
-- 发布时间：2024/4/22 9:15:00
--
参考代码：（如果不是单独查询按钮，代码写到ValueChanged事件）
Dim Filter As String
With e.Form.Controls("天数")
If .Value <> Nothing Then
If Filter > "" Then
Filter = Filter & " And "
End If
Filter &= "天数 = \'" & .Value & "\'"
End If
End With
With e.Form.Controls("面试室")
If .Value <> Nothing Then
If Filter > "" Then
Filter = Filter & " And "
End If
Filter = Filter & "面试室 like \'%" & .Value & "%\'"
End If
End With
With e.Form.Controls("首字母")
If .Value <> Nothing Then
If Filter > "" Then
Filter = Filter & " And "
End If
Filter = Filter & "首字母 like \'%" & .Value & "%\'"
End If
End With
If Filter > "" Then
Tables("号对人_号对人").Filter = Filter
End If
[此贴子已经被作者于2024/4/22 9:16:33编辑过]
-- 发布时间：2024/4/22 9:22:00
--
Dim tian As WinForm.ComboBox = e.Form.Controls("天数")
Dim mss As WinForm.ComboBox = e.Form.Controls("面试室")
Dim wlmc As WinForm.ComboBox = e.Form.Controls("首字母")
If tian.value Is Nothing Or mss.value Is Nothing Then
Tables("号对人_号对人").Filter = "首字母 like \'*" & wlmc.Text & "*\'"
ElseIf tian.value IsNot Nothing And mss.value Is Nothing Then
Tables("号对人_号对人").Filter = "天数 = \'" & tian.Text & "\'And 面试序号 Is null And 首字母 Like \'*" & wlmc.Text & "*\'"
ElseIf tian.value IsNot Nothing And mss.value IsNot Nothing Then
……
或者
Dim tian As WinForm.ComboBox = e.Form.Controls("天数")
Dim mss As WinForm.ComboBox = e.Form.Controls("面试室")
Dim wlmc As WinForm.ComboBox = e.Form.Controls("首字母")
If tian.Text = "" Or mss.Text = "" Then
Tables("号对人_号对人").Filter = "首字母 like \'*" & wlmc.Text & "*\'"
ElseIf tian.Text > "" And mss.Text = "" Then
Tables("号对人_号对人").Filter = "天数 = \'" & tian.Text & "\'And 面试序号 Is null And 首字母 Like \'*" & wlmc.Text & "*\'"
ElseIf tian.Text > "" And mss.Text > "" Then
Tables("号对人_号对人").Filter = "天数 = \'" & tian.Text & "\' and 面试室 = \'" & mss.Text & "\'and 面试序号 is null and 首字母 like \'*" & wlmc.Text & "*\'"
End If
-- 发布时间：2024/4/22 10:05:00
--
谢谢您