Excel VBA 用户表单 - 如何 increase/decrease 约会一个月

Question

使用以下代码，我使用 SpinButtons 增加了 TextBox 中显示的日期值。

MainUserForm_Initialize()
DateTextBox.Value = Format(Date, "dd-mm-YYYY")
...
End Sub

'Add one day when spinning up.
Private Sub SpinButtonDate1_SpinUp()
    With DateTextBox
        .Value = Format(DateAdd("d", 1, .Value), "dd-mm-yyyy")
    End With
End Sub

'Remove one day when spinning down.
Private Sub SpinButtonDate1_SpinDown()
    With DateTextBox
        .Value = Format(DateAdd("d", -1, .Value), "dd-mm-yyyy")
    End With
End Sub

问题是，如果我向下旋转到 11-07-2015，它会从 12-07-2015 变为 06-12-2015 而不是 11-07-2015。这是为什么？（我在增加值时遇到同样的问题。给出的日期只是一个例子。）

Answer 1

如果我将区域格式设置为美国，我只会遇到同样的问题。尝试此修复程序，无论您的区域设置如何，它都应该有效：

'Add one day when spinning up.
Private Sub SpinButtonDate1_SpinUp()
    With DateTextBox
        .Value = Format(GetDateFromUK(.Value) + 1, "dd-mm-yyyy")
    End With
End Sub

'Remove one day when spinning down.
Private Sub SpinButtonDate1_SpinDown()
    With DateTextBox
        .Value = Format(GetDateFromUK(.Value) - 1, "dd-mm-yyyy")
    End With
End Sub
Function GetDateFromUK(sDate As String, Optional sSeparator As String = "-") As Date
    Dim vParts
    vParts = Split(sDate, sSeparator)
    GetDateFromUK = DateSerial(vParts(2), vParts(1), vParts(0))
End Function

Excel VBA 用户表单 - 如何 increase/decrease 约会一个月

Excel VBA Userform - How to increase/decrease date by one month

excel

vba

userform