Mainform 选项卡控件将值传递给 select 情况下的子窗体变量

Question

过去三个小时我一直在搜索这个问题，如果有人提出并回答了这个问题，我很抱歉，但我找不到解决方案。

我有一个主窗体，frmPHDLP 和子窗体（连续数据表）frmPHDUpdate。绑定形式也不是。 frmPHDLP 上面有一个选项卡控件，可以显示真实世界的办公室位置。子表单将根据所选选项卡显示每个位置的员工列表。我在 VBA 的子窗体中设置 RecordSource。

第一个选项卡完美无缺。问题是，当我在主窗体上选择一个新选项卡时，我无法让子窗体重新查询新位置的 SQL。 SQL语句内置于子窗体的Form_Current事件中。

显然运行 Me!frmPHDUpdate.Form.Requery 不会触发子表单上的 Form_Current 事件。因为为什么会这样？

三个小时。纳达。感谢您的帮助。

frmPHDLP 代码：

Private Sub tabOffices_Change()
    Me!frmPCLPUpdateSF.Requery

End Sub

frmPHD更新码：

Private Sub Form_Current()
    Dim strSearch As String
    Dim strSQL As String

    Select Case Me.Parent!tabOffices.Value
        Case 0
            strSearch = "8401"
        Case 1
            strSearch = "8400"
        Case 2
            strSearch = "8403"
        Case 3
            strSearch = "8402"
        Case 4
            strSearch = "8404"
        Case 5
            strSearch = "8405"
        Case 6
            strSearch = "8413"
        Case 7
            strSearch = "8411"
    End Select

    strSQL = "SELECT tblEmployee.ID, tblEmployee.[LastName] & "", "" & [FirstName] AS EmpName, tblPHDLProgram.MemberOfPHDL, tblOffices.OfficeID FROM tblOffices INNER JOIN (tblPHDLP RIGHT JOIN tblEmployee ON tblPHDLP.ID = tblEmployee.ID) ON tblOffices.ID = tblEmployee.Office WHERE (((tblOffices.OfficeID)= " & strSearch & "));"
    Me.RecordSource = strSQL

End Sub

Answer 1

查看 MasterLinkFields/ChildLinkFields。

我猜你可以使用 tabOffices 和 OfficeID 并删除所有这些代码。

Answer 2

您应该使您的代码更加模块化。此外，您不应更改 Form_Current 上的表单记录源，因为这会重新查询表单并触发另一个电流，从而触发无限循环。这可能都是由于 Access 避免了无限循环造成的。

frmPHD更新码：

Public Sub BuildSQL()
    Dim strSearch As String
    Dim strSQL As String
    Select Case Me.Parent!tabOffices.Value
        Case 0
            strSearch = "8401"
        Case 1
            strSearch = "8400"
        Case 2
            strSearch = "8403"
        Case 3
            strSearch = "8402"
        Case 4
            strSearch = "8404"
        Case 5
            strSearch = "8405"
        Case 6
            strSearch = "8413"
        Case 7
            strSearch = "8411"
    End Select
    strSQL = "SELECT tblEmployee.ID, tblEmployee.[LastName] & "", "" & [FirstName] AS EmpName, tblPHDLProgram.MemberOfPHDL, tblOffices.OfficeID FROM tblOffices INNER JOIN (tblPHDLP RIGHT JOIN tblEmployee ON tblPHDLP.ID = tblEmployee.ID) ON tblOffices.ID = tblEmployee.Office WHERE (((tblOffices.OfficeID)= " & strSearch & "));"
    Me.RecordSource = strSQL
End Sub

Private Sub Form_Load()
    Me.BuildSQL
End Sub

frmPHDLP 代码：

Private Sub tabOffices_Change()
    Me!frmPCLPUpdateSF.Form.BuildSQL
End Sub

或者，甚至更好：将您的 case 语句移动到子表单 SQL:

作为frmPHDUpdate的记录源

SELECT tblEmployee.ID, tblEmployee.[LastName] & "", "" & [FirstName] AS EmpName, tblPHDLProgram.MemberOfPHDL, tblOffices.OfficeID 
FROM tblOffices 
INNER JOIN (tblPHDLP RIGHT JOIN tblEmployee ON tblPHDLP.ID = tblEmployee.ID) ON tblOffices.ID = tblEmployee.Office 
WHERE tblOffices.OfficeID = Switch(
    Forms!frmPHDLP!tabOffices = 0, 8401,
    Forms!frmPHDLP!tabOffices = 1, 8400,
    Forms!frmPHDLP!tabOffices = 2, 8403,
    Forms!frmPHDLP!tabOffices = 3, 8402,
    Forms!frmPHDLP!tabOffices = 4, 8404,
    Forms!frmPHDLP!tabOffices = 5, 8405,
    Forms!frmPHDLP!tabOffices = 6, 8413,
    Forms!frmPHDLP!tabOffices = 7, 8411
);

Mainform 选项卡控件将值传递给 select 情况下的子窗体变量

Mainform tab control passing value to subform variable for select case

ms-access

subform