[AccessD] VB.Net, trying to update some records in Access

Does anyone see what I am missing? I am trying to update some rows in a
temporary Access database by changing any pipes ( | ) to apostrophes ( ' ).
It runs through the code just fine. It's like the dataset is writing the
updates back to the table.

        Dim strTemp As String
        Dim row As DataRow
        Dim ds As DataSet
        Dim da As OleDbDataAdapter
        Dim conn As OleDbConnection
        Dim mystr As String
        Dim Connstr As String = "Provider=Microsoft.Jet.OLEDB.4.0;Data
Source=C:\MOMS_UPDATE\MOMS_UPDATE.MDB;Persist Security Info=False"
        Dim mySQL = "SELECT ItemNo, Desc1 FROM Itemmast WHERE Desc1 Like " &
Chr(34) & "%|%" & Chr(34) & ";"
        Try
            conn = New OleDbConnection(Connstr)
            da = New OleDbDataAdapter(mySQL, conn)
            ds = New DataSet
            da.Fill(ds)

            For Each row In ds.Tables(0).Rows
                strTemp = ""
                strTemp = replacePipes(row.Item("Desc1"))
                row.BeginEdit()
                'row("Desc1") = replacePipes(row("Desc1"))
                row.Item("Desc1") = strTemp
                'row.EndEdit()
                row.AcceptChanges()

            Next

            'ds.AcceptChanges()
            da.Update(ds.Tables(0))


            MessageBox.Show("dONE")
        Catch ex As Exception
            MessageBox.Show("Error " & Err.Number & " : " &
ex.Message.ToString())
        End Try