Find a string in a column and return and return an array with row numbers - excel

Question

I want to search in a column and find a string. However, there are several cells with that string and I want to return an array that contains all row position.
Dim r As Range
Set r = Sheets("Sheet3").columns(3).Find(What:="TEST", LookAt:=xlWhole, MatchCase:=False, SearchFormat:=False)
this return only the first row, but not all.
How can I return all of rows that contain "TEST"?
Thanks.

Answer 1

This should do the trick...
It will loop through Column 3 of Sheet3 to produce an array containing the row numbers of every occurrence of TEXT. Based on the options used in your example, it is case sensitive and must occupy the whole cell.
Sub demo_FindIntoArray()
Const searchFor = "TEST" 'case sensitive whole-cell search term
Const wsName = "Sheet3" 'worksheet name to search
Const colNum = 3 'column# to search
Dim r As Range, firstAddress As String, strTxt As String, arrRows
With Sheets("Sheet3").Columns(3)
Set r = .Find(searchFor, LookAt:=xlWhole, MatchCase:=False, SearchFormat:=False)
If Not r Is Nothing Then
firstAddress = r.Address
Do
If strTxt <> "" Then strTxt = strTxt & ","
strTxt = strTxt & r.Row
Set r = .FindNext(r)
Loop While Not r Is Nothing And r.Address <> firstAddress
End If
End With
If strTxt <> "" Then
arrRows = Split(strTxt,",")
MsgBox "Found " & UBound(arrRows)+1 & " occurrences of '" & searchFor & "':" & vbLf & vbLf & strTxt
Else
MsgBox "'" & searchFor & "' was not found."
End If
'[arrRows] is now an array containing row numbers
End Sub
It works by first building a string with a comma separated list of values, and then using the Split function to split it into an array.

Answer 2

This will unionize the ranges that equal "Test",
Sub SelectA1()
Dim FrstRng As Range
Dim UnionRng As Range
Dim c As Range
Set FrstRng = Range("C:C").SpecialCells(xlCellTypeConstants, 23)
For Each c In FrstRng.Cells
If LCase(c) = "test" Then
If Not UnionRng Is Nothing Then
Set UnionRng = Union(UnionRng, c) 'adds to the range
Else
Set UnionRng = c
End If
End If
Next c
UnionRng.Select ' or whatever you want to do with it.
End Sub

Answer 3

You don't indicate what you want to do with the results. However, you can return an array of the row numbers containing the word "TEST" with a worksheet formula:
Case Insensitive:
=AGGREGATE(15,6,SEARCH("TEST",$C:$C)*ROW($C:$C),ROW(INDIRECT("1:" & COUNTIF($C:$C,"*TEST*"))))
Case Sensitive:
=AGGREGATE(15,6,FIND("TEST",$C:$C)*ROW($C:$C),ROW(INDIRECT("1:" & SUMPRODUCT(--ISNUMBER(FIND("TEST",$C:$C))))))
Case Insensitive; cell = test (eg entire cell contents):
=AGGREGATE(15,6,1/($C:$C="test")*ROW($C:$C),ROW(INDIRECT("1:"&COUNTIF($C:$C,"test"))))
If you want to use this array for something else, such as to return the contents of the rows where the third column = "test", you could also do this with a filter, either in VBA or on the worksheet.
There are many different appropriate solutions, depending on what you are going to do with the results of these row numbers.