[Question] How can I access the text value of a DataTable Cell with the on_tap event?

[bmcgonag]

Question

I have a datatable that I'm generating dynamically based on JSON returned from an API.

I later want to be able to tap / click on a cell, and use the value from that cell to call a subsequent api endpoint to bring back details for that value specifically.

I can't get any value from the on_tap event that's helpful though.

When I print the event.controls.data I just get 'None'. But I can see the text in the cell that I'm clicking / tapping on the app.

Any help is greatly appreciated.

Code sample

def row_tapped(e):
    print("Row tapped.")
    print(e.control.data)

def set_peer_tbl():
    row_data = []
    for items in get_peer_data:
        if items["connected"]:
            conn = ft.Icon(name=ft.Icons.CHECK, color=ft.colors.GREEN)
        else:
            conn = ft.Icon(name=ft.Icons.CLOSE, color=ft.colors.RED)
                
        row_data.append(ft.DataRow(
            cells=[
                ft.DataCell(ft.Text(items["hostname"]), on_tap=row_tapped),
                ft.DataCell(conn)
            ]
        ))
    return row_data

page.add(
    ft.Row([
        ft.Column([
            ft.DataTable(
                columns=[
                    ft.DataColumn(ft.Text("Peer Name")),
                    ft.DataColumn(ft.Text("Status"))
                ],
                rows=get_row_data,
            ),
        ],
        scroll=True,
        ),
        ft.VerticalDivider(width=9, thickness=3),
        ft.Column([
            ft.Text("Details", theme_style=ft.TextThemeStyle.DISPLAY_SMALL)
        ])
    ],
    expand=1,
    )
)

Error message

No response

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• I have searched for answers to my question both in the issues and in previous discussions.

[ndonkoHenri]

e.control represents the DataCell. So, to get the Text control you can do e.control.content, and to get the text/string, you can do e.control.content.value.

[bmcgonag]

You are a rockstar. Thank you so much. This should be added to the DataCell docs IMO.