Yes ,i know. But Microsoft Build-in Esc is use to remove current not accept row.

So my error is occur not accept row when user entry data , key enter and press Esc then Trigger build-in event,
else if current row accept , press Esc is no Trigger build-in event.

And my solve this method in below . Due to this error only occur in row 1, and the user entry data , key enter will auto go to dg_CellValidated.
But must accept this row .Press Esc no event.

    Private Sub dg_CellValidated(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) Handles dg.CellValidated
        If dg.RowCount = 1 Then
            AppelBindingSource.EndEdit()
        End If
    End Sub