merci Steelson
Après essai, j'ai opté pour la 2ème solution
Private Sub Worksheet_Activate()
cadrage "zonea"
cadrage "zoneb"
End Sub
Sub cadrage(maplage As String)
Range(maplage).Select
Selection.Borders(xlDiagonalDown).LineStyle = xlNone
Selection.Borders(xlDiagonalUp).LineStyle = xlNone
With Selection.Borders(xlEdgeLeft)
.LineStyle = xlContinuous
.ColorIndex = xlAutomatic
.TintAndShade = 0
.Weight = xlThin
End With
End Sub
merci pour la réponse rapide
cordialement
pierre