GridView RowDataBound rowIndex problem

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ASP.NET

Gridview

Hi all,

I have the following code in two different pages; both in a gridview_RowDataBound

If e.Row.RowType = DataControlRowType.DataRow Then
            If (e.Row.RowState And DataControlRowState.Edit) <> 0 OrElse (e.Row.RowState And DataControlRowState.Insert) <> 0 Then
                Dim btnSauvegarder As ImageButton = CType(e.Row.Cells(0).Controls(0), ImageButton)
                If btnSauvegarder.CommandName = "Update" Then
                    btnSauvegarder.OnClientClick = String.Format("if (!valideLeTout(" & e.Row.RowIndex & ")) return false;")
                End If
            End If
End If

When I click on the 'Modify' button at the beginning of the first row in one of the gridview, the e.Row.RowIndex returns 1 and in the other gridview it returns 0. Same with editIndex; one returns 1 and the othe returns 0.

Both of my gridviews have a header. I have compared the properties of both gridviews and they are the same.

Can anybody explain to me what's going wrong ?