Unable to hide row Excel 2003 from function invoked from formula

Question

I have this very simple function

Public Function HRows(xx As String)
    BeginRow = 2
    EndRow = 10
   \' HideRows
    For RowCnt = BeginRow To EndRow
             


        

Answer 1

I've already introduced this method here https://stackoverflow.com/a/23232311/2165759, for your purpose a code will be as follows:

Place code to one of the module of VBAProject:

Public Tasks, PermitNewTasks, ReturnValue

Function HideRowsUDF(lBegRow, lEndRow) ' Use this UDF on the sheet
    If IsEmpty(Tasks) Then TasksInit
    If PermitNewTasks Then Tasks.Add Application.Caller, Array(lBegRow, lEndRow)
    HideRowsUDF = ReturnValue
End Function

Function HideRows(lFrom, lUpTo) ' actually all actions performed within this function, it runs without UDF limitations
    Range(Rows(lFrom), Rows(lUpTo)).EntireRow.Hidden = True
    HideRows = "Rows " & lFrom & "-" & lUpTo & " were hidden"
End Function

Sub TasksInit()
    Set Tasks = CreateObject("Scripting.Dictionary")
    ReturnValue = ""
    PermitNewTasks = True
End Sub

Place code to ThisWorkbook section of Microsoft Excel Objects in VBAProject:

Private Sub Workbook_SheetCalculate(ByVal Sh As Object)
    Dim Task, TempFormula
    If IsEmpty(Tasks) Then TasksInit
    Application.EnableEvents = False
    PermitNewTasks = False
    For Each Task In Tasks
        TempFormula = Task.FormulaR1C1
        ReturnValue = HideRows(Tasks(Task)(0), Tasks(Task)(1))
        Task.FormulaR1C1 = TempFormula
        Tasks.Remove Task
    Next
    Application.EnableEvents = True
    ReturnValue = ""
    PermitNewTasks = True
End Sub