Imizekelo ye-Excel Macros ebhalwe ngeVBA

Le mizekelo ilandelayo ye-Excel macro yabhalwa kusetyenziswa i-VBA 

Ixesha lokufunda eliqikelelweyo: 3 imizuzu

Umzekelo weVBA usebenzisa iArray

Inkqubo elandelayo ifunda amaxabiso kwiiseli ezikuluhlu A lwephepha lomsebenzi elisebenzayo, ide idibane neseli engenanto. Amaxabiso agcinwa kuluhlu. Lo mzekelo ulula we-Excel macro ubonisa ukusetyenziswa kwezi:

• Izibhengezo eziguquguqukayo;
• Uluhlu olunamandla;
• Umjikelo Do Until;
• Jonga kwiiseli kwiphepha lomsebenzi langoku le-Excel;
• Umsebenzi weVBA Ubound buildin (ebuyisela esona salathisi siphezulu soluhlu).

' 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

Inkqubo igcina amaxabiso kwikholamu A yephepha lomsebenzi elisebenzayo kuluhlu, qaphela ukuba:

• Umjikelo Do Until ikhupha amaxabiso eseli nganye kwikholamu A yephepha lomsebenzi elisebenzayo, ungahoyi iiseli ezingenanto
• Imeko "If UBound(dCellValues) < iRow” ijonga ukuba uluhlu lwe-dCellValues ​​likhulu ngokwaneleyo ukubamba ulwazi, ukuba akunjalo, sebenzisa i-ReDim ukwandisa ubungakanani boluhlu nge-10
• Ekugqibeleni, imfundo​​dCellValues(iRow) = Cells(iRow, 1).Value” Igcina iseli yangoku kuluhlu lweeSeliValues

Umzekelo we-VBA ngemisebenzi yezibalo

Le Nkqutyana ilandelayo ifunda amaxabiso asuka kumhlathi A wephepha lomsebenzi elibizwa ngokuba "I-Sheet2" kwaye yenza imisebenzi ye-arithmetic kumaxabiso. Amaxabiso anesiphumo ashicilelwe kumhlathi A wephepha lomsebenzi langoku.

Le macro ibonisa:

• Izibhengezo eziguquguqukayo;
• Izinto ze-Excel (ngokukodwa, ukusetyenziswa kweSeta igama elingundoqo kunye nendlela yokufikelela kwi-'Columns' into ukusuka kwinto 'yaMashidi');
• Umjikelo Do Until;
• Ukufikelela kumaphepha okusebenzela kunye noluhlu lweeseli kwincwadi yangoku ye-Excel.

' 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

Umzekelo we-VBA ngokurekhodwa komhla wohlengahlengiso

Masibhale i-VBA macro elula evutha xa iseli kuluhlu oluthile lwephepha lethu lihlaziywa. Masithi ufuna ukulandelela utshintsho kwikholamu B (B4 ukuya kwi-B11) kwaye urekhode umhla kunye nexesha lotshintsho kukholomu A.
Masiqhube ngolu hlobo:

• Kwithebhu Developer cofa kukhetho "Visual Basic” ukuvula umhleli weVBA.
• Kumhleli weVBA, cofa kabini umhleli wekhowudi enxulumene neSheet2.
• Khetha iPhepha lomsebenzi ukusuka ekunene (okanye ekhohlo) ithebhu kwaye ukhethe Guqula ukhetho.
• Yongeza ikhowudi yeVBA:

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

Gcina incwadi yokusebenza ngeemakhro ezivuliweyo (umzekelo, njengefayile ye.xlsm).

Ngoku, ngalo lonke ixesha sihlaziya iseli kwikholamu B (ukusuka kumqolo woku-1 ukuya kumqolo we-10), iseli ekwikholamu A iya kubonisa ngokuzenzekelayo umhla nexesha langoku.

Ercole Palmeri