Question

我有一个父表单，我单击一个按钮，启动第二个表单以进一步用户输入，一旦输入这些值，我需要将值返回到父表单。如何将第二种形式的值返回到第一种形式？

这是我目前的代码：

    'Form 1 - Main Form called frmFirstSet
Private Sub cmdDoStep1_Click()
    'Declare Variables
    Dim OrderNumber As String

    'Get the OrderNumber
    OrderNumber = Me.[frmDLZC].Form!OrderNumber

    'Open the second form for data Capture
    DoCmd.OpenForm "frmInputValues", acNormal

    'Return variables from frmInputValues
    Debug.Print green
    Debug.Print red
    Debug.Print orange

End Sub

'Form 2 - Secondary Form launched for data capture
Private Sub cmdReturnToStep1_Click()
Dim green As String, red As String, orange As String
    'Ensure all values have been input
    If IsNull(Me!txtgreen) Then
        MsgBox "Please Input the Value for green", vbOKOnly
        Me.txtgreen.SetFocus
        Exit Sub
    Else
        green = Me.txtgreen
    End If
    If IsNull(Me!txtred) Then
        MsgBox "Please Input the Value for red", vbOKOnly
        Me.txtred.SetFocus
        Exit Sub
    Else
        red = Me.txtred
    End If
    If IsNull(Me!txtorange) Then
        MsgBox "Please Input the Value for orange", vbOKOnly
        Me.txtorange.SetFocus
        Exit Sub
    Else
        orange = Me.txtorange
    End If
    'How to return these variables to the original form
End Sub

Answer 1

有很多方法可以将值从一种形式传递到另一种形式。我更喜欢直接从表单中读取值。我创建了一个公共函数，它返回所需的信息。像这样：

Public Function DialogInputBox(strHeader As String, Optional strValueLabel As String) As String
    On Error Resume Next
    ' make sure that hidden window closed
    DoCmd.Close acForm, "frm_InputDialog"
    On Error GoTo ErrorHandler
    ' open the form in dialog mode
    DoCmd.OpenForm "frm_InputDialog", WindowMode:=acDialog, OpenArgs:="Header=" & strHeader & "|ValueLabel=" & strValueLabel
    ' when control returns here, the form is still open, but not visible
    DialogInputBox = Nz(Forms("frm_InputDialog").txtValue, "")
    ' close the form
    DoCmd.Close acForm, "frm_InputDialog"
ExitHere:
    Exit Function
ErrorHandler:
    MsgBox "Error " & Err.Number & " (" & Err.Description & "), vbExclamation + vbMsgBoxHelpButton"
    Resume ExitHere
End Function

对话框表单通过OpenArgs参数接受参数，当用户单击Ok或Cancel按钮时，我们隐藏对话框表单而不是关闭：

Private Sub cmdConfirm_Click()
    If Len(Nz(Me.txtValue, "")) = 0 Then
        MsgBox "Please enter value", vbExclamation, GetDBName()
        Me.txtValue.SetFocus
        Exit Sub
    End If
    ' return execution control to the public called function
    Me.Visible = False
End Sub

我需要返回几个值，通过引用使用函数参数。

从访问表单传递变量访问表单

1 个答案: