Excel VBA - Capitalizing all selected cells in a column with formulas - vba

Question

I used the code from Siddharth Rout on the following thread to capitalize selected columns but ran into a Error '13' MISMATCH when I used it on a column with cells that had formulas in some of the range.
Excel VBA - Capitalizing all selected cells in column on double click
Here is the code that worked on non-formula based column data from the above link:
Sub ChangeToUpper()
Dim rng As Range
'~~> Check if what the user selected is a valid range
If TypeName(Selection) <> "Range" Then
MsgBox "Select a range first."
Exit Sub
End If
Set rng = Selection
rng = WorksheetFunction.Transpose(Split(UCase(Join( _
WorksheetFunction.Transpose(rng), vbBack)), vbBack))
End Sub
I searched the forums and didn't find specifics related to this. So I googled it and Mr.Excel had this code but still gave the Error '13', when I cleared out of the error message everything was capitalized. Is there a way to eliminate getting this error?
Here is the code from Mr.Excel:
Sub MyUpperCase()
Application.ScreenUpdating = False
Dim cell As Range
For Each cell In Range("$A$1:" & Range("$A$1").SpecialCells(xlLastCell).Address)
If Len(cell) > 0 Then cell = UCase(cell)
Next cell
Application.ScreenUpdating = True
End Sub

Answer 1

Check If Cell has formula and or errors, If yes then ignore.
Sub MyUpperCase()
Application.ScreenUpdating = False
Dim cell As Range
For Each cell In Range("$A$1:" & Range("$A$1").SpecialCells(xlLastCell).Address)
'/ Exclude errors
If Not IsError(cell) Then
If Len(cell) > 0 And Not cell.HasFormula Then
cell = UCase(cell)
End If
End If
Next cell
Application.ScreenUpdating = True
End Sub