Mainform选项卡控件将值传递给选择案例的子表单变量 [英] Mainform tab control passing value to subform variable for select case

问题描述

最近三个小时，我一直在搜索此文件，因此，如果有人提出并回答了此问题，我们感到抱歉，但是找不到解决方案.

I've been searching this for the last three hours, so I'm sorry if this has been asked and answered, but I can't find the solution.

我有一个主窗体，frmPHDLP和子窗体(连续数据表)frmPHDUpdate.两者都不是绑定形式. frmPHDLP上有一个选项卡控件，可显示现实世界中的办公室位置.子窗体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.

I have a mainform, frmPHDLP and subform (continuous datasheet) frmPHDUpdate. Neither are bound forms. frmPHDLP has a tab control on it which displays real world office locations. The subform will display a list of employees at each location based on the tab selected. I am setting the RecordSource in the subform in VBA.

第一个标签可以完美显示.问题是，当我在主窗体上选择一个新选项卡时，无法获得子窗体以使用新位置重新查询SQL. SQL语句内置在子窗体的Form_Current事件中.

The first tab works perfect. The problem is, when I choose a new tab on the mainform, I cannot get the subform to requery the SQL with the new location. The SQL statement is built in the Form_Current event of the subform.

显然运行Me!frmPHDUpdate.Form.Requery不会在子窗体上触发Form_Current事件.因为为什么会这样?

Apparently running Me!frmPHDUpdate.Form.Requery does not fire the Form_Current event on the subform. Because why would it?

三个小时.娜达感谢您的帮助.

THREE HOURS. Nada. Thanks for any help.

frmPHDLP代码:

frmPHDLP Code:

Private Sub tabOffices_Change()
    Me!frmPCLPUpdateSF.Requery

End Sub

frmPHD更新代码:

frmPHDUpdate Code:

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

推荐答案

您应该使代码更具模块化.另外，您不应在Form_Current上更改表单记录源，因为那样会重新查询表单，并触发另一个电流，并触发无限循环.这可能是由于Access避免了无限循环所致.

You should make your code more modular. Also, you should not change the forms recordsource on Form_Current, since that requeries the form, and triggers another current, and that triggers an infinite loop. This might all be caused by Access avoiding that infinite loop.

frmPHD更新代码:

frmPHDUpdate Code:

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:

frmPHDLP Code:

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

或更妙的是:将case语句移到SQL子窗体中:

Or, even better: move your case statement to the subforms SQL:

作为frmPHDUpdate的记录源

As the record source for frmPHDUpdate

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
);

这篇关于Mainform选项卡控件将值传递给选择案例的子表单变量的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！