Can anyone help me with this problem:

I use a code in my excel sheet to hide rows when there is a "0" (zero)
or a "C" is in a cell in the colomn. Now when I use my auto filter,
it's not filtering anything!

This is how my sheet lookslike:

1 C
1 H
2 M
2 T
3 K
3 H
4 0

This is how the code lookslike:

Dim X As Boolean

Private Sub Worksheet_Calculate()
Dim R As Long
If X = True Then Exit Sub
X = True
For R = 1 To Cells(65535, 3).End(xlUp).Row
Select Case Cells(R, 3).Value
Case "", 0, "C"
Me.Rows(R).Hidden = True
Case Else
Me.Rows(R).Hidden = False
End Select
Next
X = False
End Sub

What I want is to use the auto filter on the rows, but if I do this
now, the filter does not filter anything!

Who can help with this problem?

Greets, Berry