主题：按年份查询求助？

我有一个表，里面有日期列，记录事件日期，已知按月查询，代码如下：

 

'查看量房开始
Dim cbx1 As WinForm.ComboBox = e.Form.Controls("ComboBox1")
Dim cbx2 As WinForm.ComboBox = e.Form.Controls("ComboBox2")
Dim filter As String = "1=1"
If cbx1.text > "" Then
    Dim year As String = cbx1.text.SubString(0,2)
    Dim month As String = cbx1.text.SubString(3,2)
    Dim d As Date = new Date(year+2000, month, 1)
    filter &= " and 量房时间 >= #" & d & "# and 量房时间 < #" & d.AddMonths(1) & "#"
End If
If cbx2.text > "" Then
    filter &= " and 设计师 = '" & cbx2.text & "'"
End If
'msgbox(filter)
e.Form.controls("table1").Table.Filter = filter
'查看量房结束

 

但是按年查询，我的代码应该怎么改呢？求助大侠指点！如图，如案例！

 

 

 

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