问题
Actual work to loop through the Column A which has same value of with certain range, with that range have to check the latest date with the comment in Column B and print the comment with date in Column C kindly help me to find the solution for this problem.. Or Guide to find the solution for this problem... Kindly check the Screenshot for clear information.. Thanks in Advance Experts
回答1:
Loops are probably the most powerful things is all computer programming topics. Please see the examples below for some ideas of how to achieve your goals.
For Each cell in a range data for each example
One of the most common things you will do when programming VBA in Excel is looping though a collection of cells in a specified range, as in the example below which prints the Address and Value of 4 cells on the 'Data' worksheet to the immediate window: $B$2:a, $C$2:b, $B$3:1, $C$3:2.
Dim rng As Range: Set rng = Application.Range("Data!B2:C3")
Dim cel As Range
For Each cel In rng.Cells
With cel
Debug.Print .Address & ":" & .Value
End With
Next cel
Loop through the cells in a row data for each example
The code below shows how to loop through the cells in the row with RowIndex:=2. Applied to the data in the sheet on the right this will return 1, 2. From this we see that rows are counted from the starting point of rng, so the row is 3 on the worksheet, 2 inside rng. Also, only cells inside the set range rng are taken.
Dim rng As Range: Set rng = Application.Range("Data!B2:C3")
Dim i As Integer
For i = 1 To rng.Rows.Count
Debug.Print rng.Cells(RowIndex:=2, ColumnIndex:=i).Value
Next
Loop through the cells in a column
The code below shows how to loop through the cells in the column with ColumnIndex:=B. Applied to the data in the sheet on the right this will return a, 1, 2. From this we see that columns are counted from the starting point of rng, so the column is C on the worksheet, B inside rng. Also, only cells inside the set range rng are taken.
Dim rng As Range: Set rng =
Dim i As Integer
For i = 1 To rng.Rows.Count
Debug.Print rng.Cells(RowIndex:=i, ColumnIndex:="B").Value
Next
Loop through the columns in a range
The code below shows how to loop through the columns in the Range B2:C4. Applied to the data in the sheet on the right this will return 2, 3. From this we see that columns are counted from the starting point of the worksheet.
Dim rng As Range: Set rng = Application.Range("B2:C4")
Dim col As Range
For Each col In rng.Columns
Debug.Print col.Column
Next col
Loop through the rows in a range
The code below shows how to loop through the rows in the Range B2:C4. Applied to the data in the sheet on the right this will return 2, 3, 4. From this we see that rows are counted from the starting point of the worksheet.
Dim rng As Range: Set rng = Application.Range("B2:C4")
Dim col As Range
For Each col In rng.Rows
Debug.Print col.Row
Next col
Loop through the areas in a range data for each 2 areas example
Often we assume a range to have a rectangular shape, but this need not be the case. The example sheet on the right shows a selection containing two areas: Selection.Address returns $B$2:$C$3,$F$2:$F$3. Such a situation may also occur as a result of the Intersect method, or other causes. To handle the two ranges separately can can pick then from the Areas collection:
Dim rng As Range: Set rng = Application.Selection
Dim rngArea As Range
For Each rngArea In rng.Areas
Debug.Print rngArea.Address
Next rngArea
回答2:
I would recommend declaring some dimensions in a fairly simple approach (assumes you have sorted Column A):
Dim i As Long, j As Long, k As Long, LR As Long
LR = Cells(Rows.Count, 1).End(xlUp).Row
For i = 2 To LR
If Cells(i, 1).Value = Cells(i - 1).Value Then
If j = 0 Then
j = Cells(i - 1, 1).Row
End If
Else
If j > 0 Then
k = Cells(i - 1, 1).Row
Cells(j, 3).Value = Application.Max(Range(Cells(j, 1), Cells(k, 1)))
j = Cells(i, 1).Row
k = 0
End If
End If
Next i
来源：https://stackoverflow.com/questions/46412719/how-to-to-loop-through-cells-in-a-column-and-to-find-the-latest-date-of-the-lis