How can we find multiple used range addresses in one sheet? - excel

Question

How can we loop through all cells in a sheet and find multiple used range addresses on this one sheet? In this screen shot we have used ranges of B2:F17, I2:M17, Q2:U17, C19:M34, and Q19:U34. How can I identify these beginning and ending cell addresses of these five used ranges, and print them in an array of cells? I have some sample code that shows the total used range on a sheet.
Sub Vba_Used_Range()
Dim iCell As Range
Dim iRange As Range
Dim c As Long
Dim i As Long
Set iRange = ActiveSheet.UsedRange
For Each iCell In ActiveSheet.UsedRange
c = c + 1
If IsEmpty(iCell) = True Then
i = i + 1
End If
Next iCell
MsgBox "There are total " & c & _
" cell(s) in the range, and out of those " & _
i & " cell(s) are empty."
End Sub
Again, how can I print cell addresses for multiple used ranges on one sheet?

Answer 1

Empty Cells in Worksheet Regions
Inspired by userMT.
It is assumed that the regions contain values, not formulas.
Option Explicit
''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
' Purpose: Returns the number of cells and the number of empty cells
' of the worksheet regions containing values in a message box.
' Calls: RefWorksheetValueRegions,CountEmptyCells.
''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
Sub Vba_Used_Range()
Dim ws As Worksheet: Set ws = ActiveSheet
Dim uarg As Range: Set uarg = RefWorksheetValueRegions(ws)
If uarg Is Nothing Then Exit Sub
Dim ecCount As Long: ecCount = CountEmptyCells(uarg)
MsgBox "There is a total of " & uarg.Cells.Count & _
" cell(s) in the range, and out of those " & _
ecCount & " cell(s) are empty."
End Sub
''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
' Purpose: Creates a reference to the worksheet regions containing values.
''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
Function RefWorksheetValueRegions( _
ByVal ws As Worksheet) _
As Range
Const ProcName As String = "RefWorksheetValueRegions"
On Error GoTo ClearError
Dim turg As Range
Dim curg As Range
Dim arg As Range
For Each arg In ws.UsedRange.SpecialCells(xlCellTypeConstants).Areas
' Debug.Print "Area: " & arg.Address
If turg Is Nothing Then
Set curg = arg.CurrentRegion
Set turg = curg
Else
If Intersect(arg, curg) Is Nothing Then
Set curg = arg.CurrentRegion
Set turg = Union(turg, curg)
End If
End If
Next arg
If turg Is Nothing Then Exit Function
' For Each arg In turg.Areas
' Debug.Print "Total Area: " & arg.Address
' Next arg
Set RefWorksheetValueRegions = turg
ProcExit:
Exit Function
ClearError:
Debug.Print "'" & ProcName & "' Run-time error '" _
& Err.Number & "':" & vbLf & " " & Err.Description
Resume ProcExit
End Function
''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
' Purpose: Returns the number of empty cells of a range.
''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
Function CountEmptyCells( _
ByVal mrg As Range) _
As Long
Const ProcName As String = "CountEmptyCells"
On Error GoTo ClearError
Dim arg As Range
Dim ecCount As Long
For Each arg In mrg.Areas
On Error Resume Next
ecCount = ecCount + arg.SpecialCells(xlCellTypeBlanks).Count
On Error GoTo ClearError
Next arg
CountEmptyCells = ecCount
ProcExit:
Exit Function
ClearError:
Debug.Print "'" & ProcName & "' Run-time error '" _
& Err.Number & "':" & vbLf & " " & Err.Description
Resume ProcExit
End Function

Answer 2

Dim rArea As Range
For Each rArea In ActiveSheet.UsedRange.SpecialCells(xlCellTypeConstants+xlCellTypeFormulas).Areas
Debug.Print rArea.Address
Next rArea