Izibonelo ze-Excel Macros ezibhalwe nge-VBA

Izibonelo ezilula ezilandelayo ze-Excel macro zabhalwa kusetshenziswa i-VBA 

Isikhathi sokufunda esilinganiselwe: 3 imizuzu

Isibonelo se-VBA usebenzisa i-Array

Inqubo Encane elandelayo ifunda amanani kumaseli akukholomu A yekhasi lokusebenzela elisebenzayo, ize ihlangabezane neseli elingenalutho. Amanani agcinwa ohlwini. Lesi sibonelo esilula se-Excel sibonisa ukusetshenziswa kwalokhu:

• Izimemezelo eziguquguqukayo;
• Amalungu afanayo anamandla;
• Umjikelezo Do Until;
• Bheka kumaseli ekhasini lokusebenzela le-Excel lamanje;
• Umsebenzi we-VBA Ubound buildin (ebuyisela inkomba ephezulu kakhulu yohlu).

' Sub procedure store values in Column A of the active Worksheet
' into an array
Sub GetCellValues()
Dim iRow As Integer            ' stores the current row number
Dim dCellValues() As Double  ' array to store the cell values
iRow = 1
ReDim dCellValues(1 To 10)
' Do Until loop to extract the value of each cell in column A
' of the active Worksheet, as long as the cell is not blank
Do Until IsEmpty(Cells(iRow, 1))
   ' Check that the dCellValues array is big enough
   ' If not, use ReDim to increase the size of the array by 10
   If UBound(dCellValues) < iRow Then
      ReDim Preserve dCellValues(1 To iRow + 9)
   End If
   ' Store the current cell in the CellValues array
   dCellValues(iRow) = Cells(iRow, 1).Value
   iRow = iRow + 1
Loop
End Sub

Inqubo igcina amanani kukholamu A yekhasi lokusebenzela elisebenzayo ngohlelo, qaphela ukuthi:

• Umjikelezo Do Until ikhipha amanani eseli ngalinye kukholomu A yekhasi lokusebenzela elisebenzayo, indiva amaseli angenalutho
• Isimo "If UBound(dCellValues) < iRow” ihlola ukuthi uhlu lwe-dCellValues ​​likhulu ngokwanele ukubamba ulwazi, uma kungenjalo, sebenzisa i-ReDim ukuze ukhuphule usayizi wamalungu afanayo ngo-10.
• Ekugcineni, imfundo​​dCellValues(iRow) = Cells(iRow, 1).Value” Igcina iseli yamanje ohlwini lwama-CellValues

Isibonelo se-VBA ngemisebenzi yezibalo

Inqubo Engaphansi elandelayo ifunda amanani asuka kukholomu A yekhasi lokusebenzela eliqanjwe “Ishidi2” futhi lenza imisebenzi yezibalo kumanani. Amanani angumphumela aphrintwa kukholomu A yekhasi lokusebenzela elisebenzayo lamanje.

Le macro ibonisa:

• Izimemezelo eziguquguqukayo;
• Izinto ze-Excel (ikakhulukazi, ukusetshenziswa kwegama elingukhiye elithi Setha nokuthi ungayifinyelela kanjani into ethi 'Amakholomu' entweni ethi 'AmaSpredishithi');
• Umjikelezo Do Until;
• Finyelela kumakhasi okusebenzela nobubanzi beseli encwadini yokusebenzela ye-Excel yamanje.

' Sub procedure to loop through the values in Column A of the Worksheet
' "Sheet2", perform arithmetic operations on each value, and write the
' result into Column A of the current Active Worksheet ("Sheet1")
Sub Transfer_ColA()
Dim i As Integer
Dim Col As Range
Dim dVal As Double
' Set the variable 'Col' to be Column A of Sheet 2
Set Col = Sheets("Sheet2").Columns("A")
i = 1
' Loop through each cell of the column 'Col' until
' a blank cell is encountered
Do Until IsEmpty(Col.Cells(i))
   ' Apply arithmetic operations to the value of the current cell
   dVal = Col.Cells(i).Value * 2 + 1
   ' The command below copies the result into Column A
   ' of the current Active Worksheet - no need to specify
   ' the Worksheet name as it is the active Worksheet.
   Cells(i, 1) = dVal
   i = i + 1
Loop
End Sub

Isibonelo se-VBA ngokurekhoda kwedethi yokulungiswa

Masibhale i-VBA macro elula evutha lapho iseli kuhlu oluthile lweshidi lethu libuyekezwa. Ake sithi ufuna ukulandelela izinguquko kukholamu B (B4 kuye ku-B11) futhi urekhode usuku nesikhathi soshintsho kukholamu A.
Masiqhubeke kanje:

• Kuthebhu Developer chofoza inketho "Visual Basic” ukuze uvule umhleli we-VBA.
• Kumhleli we-VBA, chofoza kabili umhleli wekhodi ohlobene ne-Sheet2.
• Khetha Ishidi Lokusebenza kusuka kwesokudla (noma kwesokunxele) ithebhu bese ukhetha Guqula inketho.
• Engeza ikhodi ye-VBA:

Private Sub Worksheet_Change(ByVal Target As Range)
    If Not Intersect(Target, Range("B1:B10")) Is Nothing Then
        Target.Range("A1:A1").Value = Now
    End If
End Sub

Londoloza incwadi yokusebenza ngamamakhro avuliwe (isibonelo, njengefayela le-.xlsm).

Manje, ngaso sonke isikhathi lapho sibuyekeza iseli kukholamu B (kusuka kumugqa 1 kuye kumugqa 10), iseli elikukholomu A lizobonisa ngokuzenzakalelayo idethi yamanje nesikhathi.

Ercole Palmeri