Fill Empty Blank Cells with value within a region horizontaly defined - vba

Question

I'm trying to fill blank cells in a certain region with 0. The reagion should be defined in the current workbook but in sheet2 (not the current sheet). Also the place where it is supposed to fill is between columns
BU:CQ in the current region (not all 100 000 000 lines). Just the number of lines that define the table between columns BU and CQ. I know the problem lies in defining the region... See the code below.
What is missing?
Sub FillEmptyBlankCellWithValue()
Dim cell As Range
Dim InputValue As String
On Error Resume Next
InputValue = "0"
For Each cell In ThisWorkbook.Sheets("Sheet2").Range(BU).CurrentRegion
'.Cells(Rows.Count, 2).End(xlUp).Row
If IsEmpty(cell) Then
cell.Value = InputValue
End If
Next
End Sub
I've this code that i'm positive that works! But i don't wnat selection! I want somthing that specifies the sheet and a fixed range.
Now my idea is to replace "selection" with the desired range. - In this case in particular the range should be 1 - between BU:CQ; 2 - starting at row 2; 3 - working the way down until last row (not empty = end of the table that goes from column A to DE)
Sub FillEmptyBlankCellWithValue()
Dim cell As Range
Dim InputValue As String
On Error Resume Next
For Each cell In Selection
If IsEmpty(cell) Then
cell.Value = "0"
End If
Next
End Sub'
PS: And I also need to specify the sheet, since the button that will execute the code will be in the same workbook but not in the same sheet.

Answer 1

Use SpecialsCells:
On Error Resume Next 'for the case the range would be all filled
With ws
Intersect(.UsedRange, .Range("BU:CQ")).SpecialCells(xlCellTypeBlanks).Value = 0
End With
On Error GoTo 0
MUCH faster than looping !

Answer 2

Try using cells() references, such as:
For i = cells(1,"BU").Column to cells(1,"CQ").Column
cells(1,i).value = "Moo"
Next i
In your current code you list Range(BU) which is not appropriate syntax. Note that Range() can be used for named ranges, e.g., Range("TheseCells"), but the actual cell references are written as Range("A1"), etc. For Cell(), you would use Cells(row,col).
Edit1
With if statement, with second loop:
Dim i as long, j as long, lr as long
lr = cells(rows.count,1).end(xlup).row
For i = 2 to lr 'assumes headers in row 1
For j = cells(1,"BU").Column to cells(1,"CQ").Column
If cells(i,j).value = "" then cells(i,j).value = "Moo"
Next j
Next i

Answer 3

First off, you should reference the worksheet you're working with using:
Set ws = Excel.Application.ThisWorkbook.Worksheets(MyWorksheetName)
Otherwise VBA is going to choose the worksheet for you, and it may or may not be the worksheet you want to work with.
And then use it to specify ranges on specific worksheets such as ws.Range or ws.Cells. This is a much better method for specifying which worksheet you're working on.
Now for your question:
I would reference the range using the following syntax:
Dim MyRange As Range
Set MyRange = ws.Range("BU:CQ")
I would iterate through the range like so:
Edit: I tested this and it works. Obviously you will want to change the range and worksheet reference; I assume you're competent enough to do this yourself. I didn't make a variable for my worksheet because another way to reference a worksheet is to use the worksheet's (Name) property in the property window, which you can set to whatever you want; this is a free, global variable.
Where I defined testWS in the properties window:
Public Sub test()
Dim MyRange As Range
Dim tblHeight As Long
Dim tblLength As Long
Dim offsetLen As Long
Dim i As Long
Dim j As Long
With testWS
'set this this to your "BU:CQ" range
Set MyRange = .Range("P:W")
'set this to "A:BU" to get the offset from A to BU
offsetLen = .Range("A:P").Columns.Count - 1
'set this to your "A" range
tblHeight = .Range("P" & .Rows.Count).End(xlUp).Row
tblLength = MyRange.Columns.Count
End With
'iterate through the number of rows
For i = 1 To tblHeight
'iterate through the number of columns
For j = 1 To tblLength
If IsEmpty(testWS.Cells(i, offsetLen + j).Value) Then
testWS.Cells(i, offsetLen + j).Value = 0
End If
Next
Next
End Sub
Before:
After (I stopped it early, so it didn't go through all the rows in the file):
If there's a better way to do this, then let me know.