- Foxtable(狐表) (http://foxtable.net/bbs/index.asp)
-- 专家坐堂 (http://foxtable.net/bbs/list.asp?boardid=2)
---- [原创]将简洁进行到底：简化范例『窗口筛选』的代码 (http://foxtable.net/bbs/dispbbs.asp?boardid=2&id=923)
-- 发布时间：2008/10/20 12:53:00
-- [原创]将简洁进行到底：简化范例『窗口筛选』的代码
以下代码是范例『窗口筛选』的代码，虽然简单明白，不过有点啰嗦。
Dim Filter As String
With e.Form.Controls("cmbProduct")
If .Value IsNot Nothing Then
Filter = "产品 = \'" & .Value & "\'"
End If
End With
With e.Form.Controls("cmbCustomer")
If .Value IsNot Nothing Then
If Filter > "" Then
Filter = Filter & " And "
End If
Filter = Filter & "客户 = \'" & .Value & "\'"
End If
End With
With e.Form.Controls("cmbEmployee")
If .Value IsNot Nothing Then
If Filter >"" Then
Filter = Filter & " And "
End If
Filter = Filter & "雇员 = \'" & .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 & "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 & "日期 <= #" & .Value & "#"
End If
End With
If Filter > "" Then
Tables("订单").Filter = Filter
End If
本人较喜欢简洁点的公式，于是对以上代码进行简化:
筛选代码:
Dim T As String() = {"CP","KH","GY","SD","ED","产品","客户","雇员","起始日期","结束日期"}
Dim Ft As String
For n As Integer = 0 to 4
dim Tc As String = e.form.Controls(T(n)).Value
if Tc > "" then
if n = 3 Then
Ft = Ft & " And " & T(n+5) & " >= #" & Tc & "#"
ElseIF n = 4 Then
Ft = Ft & " And " & T(n+5) & " <= #" & Tc & "#"
Else
Ft = Ft & " And " & T(n+5) & " = \'" & Tc & "\'"
End If
End If
Next
If Ft > "" Then
Tables("订单").Filter = Ft.SubString(5)
End If
清除条件代码:
Dim T As String() = {"CP","KH","GY","SD","ED"}
For n As Integer = 0 to 4
e.Form.Controls(T(n)).Value = Nothing
Next
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[此贴子已经被作者于2008-10-25 13:23:07编辑过]
-- 发布时间：2008/10/20 12:57:00
--
呵呵，我也学一下
-- 发布时间：2008/10/20 13:03:00
--
大师风采依旧，学习。
-- 发布时间：2008/10/20 13:18:00
--
顶一个！
-- 发布时间：2008/10/20 13:21:00
--
大师级
-- 发布时间：2008/10/20 21:29:00
--
开眼界了,谢谢大师!
-- 发布时间：2018/11/29 10:51:00
--
好东西一定要好好学习