使用输入标签访问 VBA 选择子表单记录更新

Question

我有一个带有按钮的主窗体，以及一个设置为动态 sql 语句的子窗体对象。我为 subform 对象的 on_exit 设置了一个私有 sub 来抓取 seltop 和 selheight。

Private mlngSelTop As Long
Private mlngSelheight As Long

Private Sub frmLists_SubResults_Exit(Cancel As Integer)
    'GRAB FIRST AND LAST SELECTED RECORDS
    mlngSelTop = Me.frmLists_SubResults.Form.SelTop
    mlngSelheight = Me.frmLists_SubResults.Form.SelHeight
End Sub

然后我通过该记录集执行 2 个循环。第一个检查用户是否选择了超过 1 条记录。如果他们这样做了，我会要求他们提供标签名称，以便我可以使用自定义标签名称标记所选记录。然后，我再次循环遍历记录集，并针对每个项目执行动态 sql 更新语句，以根据记录集 ID 更新标记列。

这是例程，它在命令按钮单击主窗体时运行。我在发生错误的地方发表了评论：

Private Sub cmdTagList_Click()
    Dim Message, Title, Default, TagListRecs
    Dim w As Long
    Dim x As Long
    Dim y As Long
    Dim F As Form
    Dim db As DAO.Database
    Dim RS As DAO.Recordset
    Dim dbu As DAO.Database
    Dim RSu As DAO.Recordset
    Dim usql As String
    Dim fsql As String
    
    Set F = Me.frmLists_SubResults.Form
    Set RS = F.RecordsetClone
    
    ' Move to the first record in the recordset.
    RS.MoveFirst
    
    ' Move to the first selected record.
    RS.Move mlngSelTop - 1
    
    'LOOP THROUGH SUBFORM RECORDSET FROM SELTOP TO SELHEIGHT AND BUILD COUNT
    
    w = 0
    For x = 1 To mlngSelheight
        w = w + 1
        RS.MoveNext
    Next x
    RS.Close
    Set RS = Nothing
    Set db = Nothing
    
    'CHECK COUNT OF SELECTED RECORDS
    If w < 2 Then
        MsgBox "Please select records from the subform, by selecting 1 record on the left of the row," & vbCrLf & _
                "press the shift key and select the last record to be tagged.", vbCritical, "Must Select Records to Tag"
    
    'MULTIPLE RECORDS WERE SELECTED - DO UPDATES
    Else
        Message = "Please Provide Tag Name:"  ' Set prompt.
        Title = "Provide List Name"    ' Set title.
        Default = "0"    ' Set default..
        TagListRecs = InputBox(Message, Title, Default)
        Set RSu = F.RecordsetClone
    
        RSu.MoveFirst
    
        ' Move to the first selected record.
        RSu.Move mlngSelTop - 1
        'CYCLE THROUGH RECORDSET AND RUN UPDATE SQL TO TAG RECORDS SELECTED WITH THE TAG NAME PROVIDED
        For y = 1 To mlngSelheight
     
            usql = "UPDATE tblVFileImport SET CallSheet = '" & TagListRecs & "' WHERE ID = " & RSu![ID]
    
        'THIS IS THE LINE THAT ERRORS - RUN-TIME ERROR 91
            dbu.Execute usql, dbFailOnError
        'THIS IS THE LINE THAT ERRORS - RUN-TIME ERROR 91
        RSu.MoveNext
        Next y
    
        RSu.Close
    
        Set RSu = Nothing
        Set dbu = Nothing
    
        fsql = "SELECT XXX.FIELDS " & _
            "FROM XXX "
        fsql = fsql & "WHERE NZ(XXX.FIELD1,'') <> '' AND XXX.TAGCOL = '" & TagListRecs & "' "
        fsql = fsql & "ORDER BY XXX.FIELD1"
    
        Me.frmLists_SubResults.Form.RecordSource = fsql
        Me.frmLists_SubResults.Form.Requery
    
        Me.lblFilter.Caption = "List tagged for " & TagListRecs & ". Copy List to Excel and Have Fun!"
    End If
End Sub

谁能帮忙？

谢谢！

Answer 1

您在尝试dbu.Execute 之前没有Set dbu ...因此会触发“未设置对象变量” 错误（#91）。

在For y = 1 To mlngSelheight之前添加一行Set dbu = CurrentDb