我试图基于四个组合框创建一个过滤器,以过滤一个子表单中的记录。问题是,组合框中RowSource列表中的一个值在基础查询中不存在。All
". 我打算在所有的组合框上使用相同的代码。AfterUpdate
事件。请看我下面的方法,必要时请给予建议。目前,我收到一个类型不匹配的错误,在 Me.Combobox1.Value = "Like "*""
If IsNull(Me.combo1.Value) Or IsNull(Me.combo2.Value) Or IsNull(Me.combo3.Value) Or
IsNull(Me.combo4.Value) Then
Exit Sub
End If
If Not IsNull(Me.combo1.Value) Or Not IsNull(combo2.Value) Or Not IsNull(combo3.Value) Or Not
IsNull(combo4.Value) Then
If Me.combo1 = "All" Then
Me.combo1.Value = "Like " * ""
ElseIf Me.combo2.Value = "All" Then
Me.combo2.Value = "Like " * ""
ElseIf Me.combo3.Value = "All" Then
Me.combo3.Value = "Like " * ""
ElseIf Me.combo4.Value = "All" Then
Me.combo4.Value = "Like " * ""
Task1 = "SELECT * FROM qryBase WHERE [Quarter] = '" & Me.combo1.Value & "' AND [CurrentArea] = '" &
Me.combo2.Value & "' AND [CurrentStatus] = '" & Me.combo3.Value & "' AND [MainUser] = '" &
Me.combo4.Value & "'"
End If
End If
就像现在这样,你的查询不能正常工作。LIKE
是为了取代 =
在条件语句中。然而, LIKE
没有通配符的情况下,就像 =
. 因此,把 LIKE
操作符在SQL语句中。
Dim cbo1, cbo2, cbo3, cbo4 As String
...
If Me.combo1 = "All" Then
cbo1 = "*"
ElseIf Me.combo2.Value = "All" Then
cbo2 = "*"
ElseIf Me.combo3.Value = "All" Then
cbo3 = "*"
ElseIf Me.combo4.Value = "All" Then
cbo4 = "*"
End If
Task1 = "SELECT * FROM qryBase WHERE [Quarter] LIKE '" & cbo1 & "'" _
& " AND [CurrentArea] LIKE '" & cbo2 & "'" _
& " AND [CurrentStatus] LIKE '" & cbo3 & "'" _
& " AND [MainUser] LIKE '" & cbo4 & "'"
Me.frmDatasheet.Form.Recordsource = Task1
Me.frmDatasheet.Form.Requery
但是,由于组合框可以有省略号,所以可以考虑参数化,避免将VBA值直接连接到SQL中,而是将其作为参数绑定。
Dim qdef As QueryDef
Dim rst As Recordset
Dim sql AS String
Dim cbo1, cbo2, cbo3, cbo4 As String
sql = "PARAMETERS cbo1 TEXT, cbo2 TEXT, cbo3 TEXT, cbo4 TEXT;" _
& "SELECT * FROM qryBase WHERE [Quarter] LIKE [cbo1]" _
& " AND [CurrentArea] LIKE [cbo2]" _
& " AND [CurrentStatus] LIKE [cbo3]" _
& " AND [MainUser] LIKE [cbo4]"
If Me.combo1 = "All" Then
cbo1 = "*"
ElseIf Me.combo2.Value = "All" Then
cbo2 = "*"
ElseIf Me.combo3.Value = "All" Then
cbo3 = "*"
ElseIf Me.combo4.Value = "All" Then
cbo4 = "*"
End If
' INITIALIZE QUERY OBJECT
Set qdef = CurrentDb.CreateQueryDef("", sql)
' Set qdef = CurrentDb.QueryDefs("mySavedParamQuery")
' BIND PARAMS
qdef!cbo1 = cbo1
qdef!cbo2 = cbo2
qdef!cbo3 = cbo3
qdef!cbo4 = cbo4
' SET FORM RECORDSET TO EXECUTED QUERY
Set rst = qdef.OpenRecordset()
Set Me.frmDatasheet.Form.Recordset = rst
Set rst = Nothing: Set qdef = Nothing