How to make expansion on dynamic column datatable - vue.js

Question

I have a problem, I need to make an expansion row so I did something like:
<q-table
:title="title"
:data="driverTable.data"
:columns="driverTable.columns"
:visible-columns="driverTable.visibleCols"
row-key="objectId"
:loading="driverTable.loading"
:filter="driverTable.filter"
>
<template
v-slot:body-cell-expandingrow="cellProperties"
>
<q-td
auto-width
:props="cellProperties"
>
<q-btn
size="sm"
color="accent"
round
dense
#click="cellProperties.expand = !cellProperties.expand"
:icon="cellProperties.expand ? 'remove' : 'add'"
/>
</q-td>
<q-tr
v-show="cellProperties.expand"
:props="cellProperties"
>
<q-td
colspan="100%"
>
<div
class="text-left"
>
This is expand slot for row above: {{ cellProperties.row.name }}.
</div>
</q-td>
</q-tr>
</template>
...
data() {
return {
driverTable: {
filter: '',
loading: false,
columns: [
{
name: 'objectId',
field: row => row.objectId,
format: val => '',
},
{
name: 'name',
label: 'Nom complete',
align: 'left',
field: row => row.name,
format: val => `${val}`,
sortable: true,
classes: 'ellipsis',
},
{
name: 'phone',
required: true,
label: 'Téléphone',
field: row => row.phone,
format: val => `${val}`,
},
{
name: 'position',
required: true,
label: 'Position Actuelle',
field: row => `${row.latitude}, ${row.longitude}`,
format: val => `${val}`,
},
{
name: 'carName',
required: true,
label: 'Voiture',
field: row => row.carName,
format: val => `${val}`,
sortable: true,
},
{
name: 'carSerie',
required: true,
label: 'Série',
field: row => row.carSerie,
format: val => `${val}`,
},
{
name: 'carRef',
required: true,
label: 'Référence',
field: row => row.carRef,
format: val => `${val}`,
},
{
name: 'carImage',
required: true,
label: 'Image',
field: row => row.carImage,
align: 'center',
format: val => `${val}`,
}
],
data: []
Just like quasar documentation but it display the expanding row just like another td on the table.
I know that the problem is when I make the td of btn with the row but as U see I dont use on my html any element jsut q-table to display the data table.
here is the result: