excel-vba
autofiltr; Zastosowania i najlepsze praktyki

Wprowadzenie

Uwagi

Smartfilter!

Sytuacja problemowa
Administrator magazynu ma arkusz („Zapis”), w którym jest przechowywany każdy ruch logistyczny wykonywany przez zakład, może filtrować w razie potrzeby, chociaż jest to bardzo czasochłonne i chciałby usprawnić proces w celu szybszego obliczania zapytań, ponieważ przykład: ile mamy „pulpy” (we wszystkich stojakach)? Ile mamy pulpy (w szafie nr 5)? Filtry są świetnym narzędziem, ale są w pewnym stopniu ograniczone do odpowiedzi na tego rodzaju pytania w ciągu kilku sekund.

Rozwiązanie makro:
Koder wie, że automatyczne filtry są najlepszym, szybkim i najbardziej niezawodnym rozwiązaniem w tego rodzaju scenariuszach, ponieważ dane istnieją już w arkuszu, a dane wejściowe dla nich można łatwo uzyskać - w tym przypadku, przez dane wejściowe użytkownika -.
Zastosowane podejście polega na utworzeniu arkusza o nazwie „SmartFilter”, w którym administrator może łatwo filtrować wiele danych w razie potrzeby, a obliczenia będą wykonywane natychmiast.
Używa do tego 2 modułów i zdarzenia Worksheet_Change

Kod arkusza SmartFilter:

Private Sub Worksheet_Change(ByVal Target As Range)
Dim ItemInRange As Range
Const CellsFilters As String = "C2,E2,G2"
    Call ExcelBusy
    For Each ItemInRange In Target
    If Not Intersect(ItemInRange, Range(CellsFilters)) Is Nothing Then Call Inventory_Filter
    Next ItemInRange
    Call ExcelNormal
End Sub

Kod modułu 1 o nazwie „Funkcje ogólne”

Sub ExcelNormal()
        With Excel.Application
        .EnableEvents = True
        .Cursor = xlDefault
        .ScreenUpdating = True
        .DisplayAlerts = True
        .StatusBar = False
        .CopyObjectsWithCells = True
        End With
End Sub
Sub ExcelBusy()
        With Excel.Application
        .EnableEvents = False
        .Cursor = xlWait
        .ScreenUpdating = False
        .DisplayAlerts = False
        .StatusBar = False
        .CopyObjectsWithCells = True
        End With
End Sub
Sub Select_Sheet(NameSheet As String, Optional VerifyExistanceOnly As Boolean)
    On Error GoTo Err01Select_Sheet
    Sheets(NameSheet).Visible = True
    If VerifyExistanceOnly = False Then ' 1. If VerifyExistanceOnly = False
    Sheets(NameSheet).Select
    Sheets(NameSheet).AutoFilterMode = False
    Sheets(NameSheet).Cells.EntireRow.Hidden = False
    Sheets(NameSheet).Cells.EntireColumn.Hidden = False
    End If ' 1. If VerifyExistanceOnly = False
    If 1 = 2 Then '99. If error
Err01Select_Sheet:
    MsgBox "Err01Select_Sheet: Sheet " & NameSheet & " doesn't exist!", vbCritical: Call ExcelNormal: On Error GoTo -1: End
    End If '99. If error
End Sub
Function General_Functions_Find_Title(InSheet As String, TitleToFind As String, Optional InRange As Range, Optional IsNeededToExist As Boolean, Optional IsWhole As Boolean) As Range
Dim DummyRange As Range
    On Error GoTo Err01General_Functions_Find_Title
    If InRange Is Nothing Then ' 1. If InRange Is Nothing
    Set DummyRange = IIf(IsWhole = True, Sheets(InSheet).Cells.Find(TitleToFind, LookAt:=xlWhole), Sheets(InSheet).Cells.Find(TitleToFind, LookAt:=xlPart))
    Else ' 1. If InRange Is Nothing
    Set DummyRange = IIf(IsWhole = True, Sheets(InSheet).Range(InRange.Address).Find(TitleToFind, LookAt:=xlWhole), Sheets(InSheet).Range(InRange.Address).Find(TitleToFind, LookAt:=xlPart))
    End If ' 1. If InRange Is Nothing
    Set General_Functions_Find_Title = DummyRange
    If 1 = 2 Or DummyRange Is Nothing Then '99. If error
Err01General_Functions_Find_Title:
    If IsNeededToExist = True Then MsgBox "Err01General_Functions_Find_Title: Ttile '" & TitleToFind & "' was not found in sheet '" & InSheet & "'", vbCritical: Call ExcelNormal: On Error GoTo -1: End
    End If '99. If error
End Function

Kod modułu 2 o nazwie „Inventory_Handling”

Const TitleDesc As String = "DESCRIPTION"
Const TitleLocation As String = "LOCATION"
Const TitleActn As String = "ACTION"
Const TitleQty As String = "QUANTITY"
Const SheetRecords As String = "Record"
Const SheetSmartFilter As String = "SmartFilter"
Const RowFilter As Long = 2
Const ColDataToPaste As Long = 2
Const RowDataToPaste As Long = 7
Const RangeInResult As String = "K1"
Const RangeOutResult As String = "K2"
Sub Inventory_Filter()
Dim ColDesc As Long: ColDesc = General_Functions_Find_Title(SheetSmartFilter, TitleDesc, IsNeededToExist:=True, IsWhole:=True).Column
Dim ColLocation As Long: ColLocation = General_Functions_Find_Title(SheetSmartFilter, TitleLocation, IsNeededToExist:=True, IsWhole:=True).Column
Dim ColActn As Long: ColActn = General_Functions_Find_Title(SheetSmartFilter, TitleActn, IsNeededToExist:=True, IsWhole:=True).Column
Dim ColQty As Long: ColQty = General_Functions_Find_Title(SheetSmartFilter, TitleQty, IsNeededToExist:=True, IsWhole:=True).Column
Dim CounterQty As Long
Dim TotalQty As Long
Dim TotalIn As Long
Dim TotalOut As Long
Dim RangeFiltered As Range
    Call Select_Sheet(SheetSmartFilter)
    If Cells(Rows.Count, ColDataToPaste).End(xlUp).Row > RowDataToPaste - 1 Then Rows(RowDataToPaste & ":" & Cells(Rows.Count, "B").End(xlUp).Row).Delete
    Sheets(SheetRecords).AutoFilterMode = False
    If Cells(RowFilter, ColDesc).Value <> "" Or Cells(RowFilter, ColLocation).Value <> "" Or Cells(RowFilter, ColActn).Value <> "" Then ' 1. If Cells(RowFilter, ColDesc).Value <> "" Or Cells(RowFilter, ColLocation).Value <> "" Or Cells(RowFilter, ColActn).Value <> ""
    With Sheets(SheetRecords).UsedRange
    If Sheets(SheetSmartFilter).Cells(RowFilter, ColDesc).Value <> "" Then .AutoFilter Field:=General_Functions_Find_Title(SheetRecords, TitleDesc, IsNeededToExist:=True, IsWhole:=True).Column, Criteria1:=Sheets(SheetSmartFilter).Cells(RowFilter, ColDesc).Value
    If Sheets(SheetSmartFilter).Cells(RowFilter, ColLocation).Value <> "" Then .AutoFilter Field:=General_Functions_Find_Title(SheetRecords, TitleLocation, IsNeededToExist:=True, IsWhole:=True).Column, Criteria1:=Sheets(SheetSmartFilter).Cells(RowFilter, ColLocation).Value
    If Sheets(SheetSmartFilter).Cells(RowFilter, ColActn).Value <> "" Then .AutoFilter Field:=General_Functions_Find_Title(SheetRecords, TitleActn, IsNeededToExist:=True, IsWhole:=True).Column, Criteria1:=Sheets(SheetSmartFilter).Cells(RowFilter, ColActn).Value
    'If we don't use a filter we would need to use a cycle For/to or For/Each Cell in range
    'to determine whether or not the row meets the criteria that we are looking and then
    'save it on an array, collection, dictionary, etc
    'IG: For CounterRow = 2 To TotalRows
    'If Sheets(SheetSmartFilter).Cells(RowFilter, ColDesc).Value <> "" and Sheets(SheetRecords).cells(CounterRow,ColDescInRecords).Value= Sheets(SheetSmartFilter).Cells(RowFilter, ColDesc).Value then
    'Redim Preserve MyUnecessaryArray(UnecessaryNumber) ''Save to array: (UnecessaryNumber)=MyUnecessaryArray. Or in a dictionary, etc. At the end, we would transpose this values into the sheet, at the end
    'both are the same, but, just try to see the time invested on each logic.
    If .Cells(1, 1).End(xlDown).Value <> "" Then Set RangeFiltered = .Rows("2:" & Sheets(SheetRecords).Cells(Rows.Count, "A").End(xlUp).Row).SpecialCells(xlCellTypeVisible)
    'If it is not <>"" means that there was not filtered data!
    If RangeFiltered Is Nothing Then MsgBox "Err01Inventory_Filter: No data was found with the given criteria!", vbCritical: Call ExcelNormal: End
    RangeFiltered.Copy Destination:=Cells(RowDataToPaste, ColDataToPaste)
    TotalQty = Cells(Rows.Count, ColQty).End(xlUp).Row
    For CounterQty = RowDataToPaste + 1 To TotalQty
    If Cells(CounterQty, ColActn).Value = "In" Then ' 2. If Cells(CounterQty, ColActn).Value = "In"
    TotalIn = Cells(CounterQty, ColQty).Value + TotalIn
    ElseIf Cells(CounterQty, ColActn).Value = "Out" Then ' 2. If Cells(CounterQty, ColActn).Value = "In"
    TotalOut = Cells(CounterQty, ColQty).Value + TotalOut
    End If ' 2. If Cells(CounterQty, ColActn).Value = "In"
    Next CounterQty
    Range(RangeInResult).Value = TotalIn
    Range(RangeOutResult).Value = -(TotalOut)
    End With
    End If ' 1. If Cells(RowFilter, ColDesc).Value <> "" Or Cells(RowFilter, ColLocation).Value <> "" Or Cells(RowFilter, ColActn).Value <> ""
End Sub

Testy i wyniki:

Jak widzieliśmy na poprzednim zdjęciu, zadanie to zostało łatwo zrealizowane. Dzięki zastosowaniu autofiltrów zapewniono rozwiązanie, którego obliczenie zajmuje tylko kilka sekund, jest łatwe do wyjaśnienia dla użytkownika - ponieważ zna on to polecenie - i zabrało kilka wierszy do kodera.