다음은 다양한 범위의 변경 날짜를 모니터링 할 수있는 본격적인 솔루션입니다. 이 함수는 VBA에서 배열을 사용하기위한 칩 피어슨 도구 에서 기능을 스택 오버플로 사용자 Thomas에 의해 답변.
기본 개념은 모니터링 된 모든 범위 (과거 또는 현재)의 주소가 가장 최근의 업데이트 날짜와 함께 저장되는 전역 배열이 함수와 Worksheet_Change Sub가 상호 작용할 수있게한다는 것입니다. Worksheet_Change Sub 모든 저장된 범위에 대해 변경된 범위를 검사하여이 배열을 업데이트합니다. 이 함수는 배열에서 모니터 된 범위를 찾고 저장된 변경 날짜를 반환합니다. 그렇지 않으면 오늘 날짜가 반환되고 배열에 추가됩니다.
또한 통합 문서를 닫고 타임 스탬프 배열을 할당 해제 할 때 타임 스탬프가 손실되지 않도록하려면 배열을 Workbook_Close 이벤트의 시트에 기록한 다음 Workbook_Open 이벤트의 배열에 다시 작성해야합니다.
모듈에서 다음 코드를 붙여 넣습니다.
Public funcInstances() As Variant
Public Function MOD_DATE_OF(monitor As Range)
Application.Volatile True
Dim i As Long
Dim tmpArray() As Variant
If Not IsDimensioned(funcInstances) Then
ReDim funcInstances(1 To 1, 1 To 2) As Variant
funcInstances(1, 1) = monitor.Address
funcInstances(1, 2) = Date
Else
For i = 1 To UBound(funcInstances, 1)
If funcInstances(i, 1) = monitor.Address Then
MOD_DATE_OF = Format(funcInstances(i, 2), "yyyy-mm-dd")
Exit Function
End If
Next i
tmpArray = ExpandArray(funcInstances, 1, 1, "")
Erase funcInstances
funcInstances = tmpArray
funcInstances(UBound(funcInstances, 1), 1) = monitor.Address
funcInstances(UBound(funcInstances, 1), 2) = Date
End If
MOD_DATE_OF = Format(funcInstances(UBound(funcInstances, 1), 2), "yyyy-mm-dd")
End Function
'ExpandArray() is the work of Chip Pearson. Code copied from http://www.cpearson.com/excel/vbaarrays.htm
Function ExpandArray(Arr As Variant, WhichDim As Long, AdditionalElements As Long, _
FillValue As Variant) As Variant
'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
' ExpandArray
' This expands a two-dimensional array in either dimension. It returns the result
' array if successful, or NULL if an error occurred. The original array is never
' changed.
' Parameters:
' --------------------
' Arr is the array to be expanded.
'
' WhichDim is either 1 for additional rows or 2 for
' additional columns.
'
' AdditionalElements is the number of additional rows or columns
' to create.
'
' FillValue is the value to which the new array elements should be
' initialized.
'
' You can nest calls to Expand array to expand both the number of rows and
' columns. E.g.,
'
' C = ExpandArray(ExpandArray(Arr:=A, WhichDim:=1, AdditionalElements:=3, FillValue:="R"), _
' WhichDim:=2, AdditionalElements:=4, FillValue:="C")
' This first adds three rows at the bottom of the array, and then adds four
' columns on the right of the array.
'
'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
Dim Result As Variant
Dim RowNdx As Long
Dim ColNdx As Long
Dim ResultRowNdx As Long
Dim ResultColNdx As Long
Dim NumRows As Long
Dim NumCols As Long
Dim NewUBound As Long
Const ROWS_ As Long = 1
Const COLS_ As Long = 2
''''''''''''''''''''''''''''
' Ensure Arr is an array.
''''''''''''''''''''''''''''
If IsArray(Arr) = False Then
ExpandArray = Null
Exit Function
End If
'''''''''''''''''''''''''''''''''
' Ensure the dimension is 1 or 2.
'''''''''''''''''''''''''''''''''
Select Case WhichDim
Case 1, 2
Case Else
ExpandArray = Null
Exit Function
End Select
''''''''''''''''''''''''''''''''''''
' Ensure AdditionalElements is > 0.
' If AdditionalElements < 0, return NULL.
' If AdditionalElements = 0, return Arr.
''''''''''''''''''''''''''''''''''''
If AdditionalElements < 0 Then
ExpandArray = Null
Exit Function
End If
If AdditionalElements = 0 Then
ExpandArray = Arr
Exit Function
End If
NumRows = UBound(Arr, 1) - LBound(Arr, 1) + 1
NumCols = UBound(Arr, 2) - LBound(Arr, 2) + 1
If WhichDim = ROWS_ Then
'''''''''''''''
' Redim Result.
'''''''''''''''
ReDim Result(LBound(Arr, 1) To UBound(Arr, 1) + AdditionalElements, LBound(Arr, 2) To UBound(Arr, 2))
''''''''''''''''''''''''''''''
' Transfer Arr array to Result
''''''''''''''''''''''''''''''
For RowNdx = LBound(Arr, 1) To UBound(Arr, 1)
For ColNdx = LBound(Arr, 2) To UBound(Arr, 2)
Result(RowNdx, ColNdx) = Arr(RowNdx, ColNdx)
Next ColNdx
Next RowNdx
'''''''''''''''''''''''''''''''
' Fill the rest of the result
' array with FillValue.
'''''''''''''''''''''''''''''''
For RowNdx = UBound(Arr, 1) + 1 To UBound(Result, 1)
For ColNdx = LBound(Arr, 2) To UBound(Arr, 2)
Result(RowNdx, ColNdx) = FillValue
Next ColNdx
Next RowNdx
Else
'''''''''''''''
' Redim Result.
'''''''''''''''
ReDim Result(LBound(Arr, 1) To UBound(Arr, 1), UBound(Arr, 2) + AdditionalElements)
''''''''''''''''''''''''''''''
' Transfer Arr array to Result
''''''''''''''''''''''''''''''
For RowNdx = LBound(Arr, 1) To UBound(Arr, 1)
For ColNdx = LBound(Arr, 2) To UBound(Arr, 2)
Result(RowNdx, ColNdx) = Arr(RowNdx, ColNdx)
Next ColNdx
Next RowNdx
'''''''''''''''''''''''''''''''
' Fill the rest of the result
' array with FillValue.
'''''''''''''''''''''''''''''''
For RowNdx = LBound(Arr, 1) To UBound(Arr, 1)
For ColNdx = UBound(Arr, 2) + 1 To UBound(Result, 2)
Result(RowNdx, ColNdx) = FillValue
Next ColNdx
Next RowNdx
End If
''''''''''''''''''''
' Return the result.
''''''''''''''''''''
ExpandArray = Result
End Function
'IsDimensioned() is the work of StackOverflow user @Thomas. Code copied from https://stackoverflow.com/a/5480690/657668
Public Function IsDimensioned(vValue As Variant) As Boolean
On Error Resume Next
If Not IsArray(vValue) Then Exit Function
Dim i As Integer
i = UBound(vValue)
IsDimensioned = Err.Number = 0
End Function
적절한 워크 시트 모듈에서 다음 코드를 붙여 넣습니다.
Private Sub Worksheet_Change(ByVal Target As Range)
Application.EnableEvents = False
Dim j As Long
If IsDimensioned(funcInstances) Then
For j = 1 To UBound(funcInstances, 1)
If Not Intersect(Target, Range(funcInstances(j, 1))) Is Nothing Then
funcInstances(j, 2) = Date
End If
Next j
Me.Calculate
End If
Application.EnableEvents = True
End Sub
마지막으로 ThisWorkbook 모듈에서 다음 코드를 붙여 넣습니다.
Private Sub Workbook_BeforeClose(Cancel As Boolean)
If IsDimensioned(funcInstances) Then
Application.ScreenUpdating = False
'Store array on a new temporary and hidden worksheet.
Dim tmpS As Worksheet, tmpR As Range
Set tmpS = Worksheets.Add
tmpS.Name = "TEMP Record of Timestamps"
tmpS.Visible = xlSheetHidden
Set tmpR = tmpS.Range("A1:B1").Resize(UBound(funcInstances, 1), 2)
tmpR.Value = funcInstances
ThisWorkbook.Save
Application.ScreenUpdating = True
End If
End Sub
Private Sub Workbook_Open()
Dim ws As Worksheet, tstamps As Range
Dim wsfound As Boolean
wsfound = False
Application.ScreenUpdating = False
For Each ws In ThisWorkbook.Worksheets
If ws.Name = "TEMP Record of Timestamps" Then
wsfound = True
Exit For
End If
Next ws
If wsfound Then
Set tstamps = ws.UsedRange
funcInstances = tstamps.Value
Application.DisplayAlerts = False
ws.Delete
Application.DisplayAlerts = True
End If
Application.ScreenUpdating = True
End Sub
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