Excel VBA - If cell is an integer, delete the entire row

Question

I have been trying to use some snippets on how to delete entire rows on Excel VBA, but I can't modify them to include the "IsNumber" verification.

I need to be able to choose an active area, like:

Set r = ActiveSheet.Range("A1:C10")

And as it goes through row after row (and checking every cell of the area), delete the entire row if a there is a number on a cell.

For example:

NA NA NA 21
NA 22 NA 44
00 NA NA NA
NA NA NA NA
55 NA NA NA

The macro would then delete all the rows, except for the 4th one which is

NA NA NA NA

Answer 1

Take your pick :)

WAY 1 (TRIED AND TESTED)

This uses SpecialCells to identify the rows which has numbers.

Sub Sample()
    Dim ws As Worksheet
    Dim rng As Range

    On Error GoTo Whoa

    Set ws = Sheets("Sheet1")

    With ws
        Set rng = .Cells.SpecialCells(xlCellTypeConstants, xlNumbers).EntireRow

        rng.ClearContents '<~~ or rng.Clear if cells have formatting

        .Cells.Sort Key1:=.Range("A1")
    End With

    Exit Sub
Whoa:
    MsgBox Err.Description
End Sub

WAY 2 (TRIED AND TESTED)

This uses Looping and Count() to check for numbers

Sub Sample()
    Dim ws As Worksheet
    Dim delrange As Range
    Dim lRow As Long, i As Long

    On Error GoTo Whoa

    Set ws = Sheets("Sheet1")

    With ws
        lRow = .Range("A" & .Rows.Count).End(xlUp).Row

        For i = 1 To lRow
            If Application.WorksheetFunction.Count(.Rows(i)) > 0 Then
                If delrange Is Nothing Then
                    Set delrange = .Rows(i)
                Else
                    Set delrange = Union(delrange, .Rows(i))
                End If
            End If
        Next i

        If Not delrange Is Nothing Then delrange.Delete
    End With

    Exit Sub
Whoa:
    MsgBox Err.Description
End Sub

Way 3 (TRIED AND TESTED)

This uses Auto Filters. I am assuming that row 1 has headers and there is no blank cell in your range.

Sub Sample()
    Dim ws As Worksheet
    Dim lRow As Long, lCol As Long, i As Long
    Dim ColN As String

    On Error GoTo Whoa

    Set ws = Sheets("Sheet1")

    With ws
        lRow = .Range("A" & .Rows.Count).End(xlUp).Row
        lCol = .Cells(1, .Columns.Count).End(xlToLeft).Column

        For i = 1 To lCol
            '~~> Remove any filters
            .AutoFilterMode = False
            ColN = Split(.Cells(, i).Address, "$")(1)

            '~~> Filter, offset(to exclude headers) and delete visible rows
            With .Range(ColN & "1:" & ColN & lRow)

                .AutoFilter Field:=1, Criteria1:=">=" & _
                Application.WorksheetFunction.Min(ws.Columns(i)), _
                Operator:=xlOr, Criteria2:="<=" & _
                Application.WorksheetFunction.Max(ws.Columns(i))

                .Offset(1, 0).SpecialCells(xlCellTypeVisible).EntireRow.Delete
            End With

            '~~> Remove any filters
            .AutoFilterMode = False
        Next
    End With

    Exit Sub
Whoa:
    MsgBox Err.Description
End Sub