主题：关联表的筛选窗口设计

此主题相关图片如下：无标题.jpg


我筛选控件的代码如下：Dim Filter As String
With e.Form.Controls("TextBox1")
    If .Value IsNot Nothing Then
        Filter = "[色名色号] LIKE '*" & .Value & "*'"
    End If
End With
With e.Form.Controls("TextBox2")
    If .Value IsNot Nothing Then
        If Filter > "" Then
            Filter = Filter & " and "
        End If
        Filter = Filter & "[款号] LIKE '*" & .Value & "*'"
    End If
End With
With e.Form.Controls("TextBox3")
    If .Value IsNot Nothing Then
        If Filter >"" Then
            Filter = Filter & " And "
        End If
        Filter = Filter & "[缸号] LIKE '*" & .Value & "*'"
    End If
End With
If Filter > "" Then
    Tables("生产管理").Filter = Filter
End If

为什么代码没有起作用，说明一下。谢谢！