Text control is in the ft.DataColumn ,how to set the Text control's margin

[jackwan990]

Text control is in the ft.DataColumn ,how to set the Text control's margin,eg:

import flet as ft

def main(page: ft.Page):
page.add(
ft.DataTable(
width=700,
bgcolor="yellow",
border=ft.border.all(2, "red"),
border_radius=10,
vertical_lines=ft.border.BorderSide(3, "blue"),
horizontal_lines=ft.border.BorderSide(1, "green"),
sort_column_index=0,
sort_ascending=True,
heading_row_color=ft.colors.BLACK12,
heading_row_height=100,
data_row_color={"hovered": "0x30FF0000"},
show_checkbox_column=True,
divider_thickness=0,
# column_spacing=200,
columns=[
ft.DataColumn(
ft.Text("Column 1"),
on_sort=lambda e: print(f"{e.column_index}, {e.ascending}"),
),
ft.DataColumn(
ft.Text("ddddddddd 2",width=400,),
tooltip="This is a second column",
numeric=True,
on_sort=lambda e: print(f"{e.column_index}, {e.ascending}"),
),
],
rows=[
ft.DataRow(
[ft.DataCell(ft.Text("A")), ft.DataCell(ft.Text("1"))],
selected=True,
on_select_changed=lambda e: print(f"row select changed: {e.data}"),
),
ft.DataRow([ft.DataCell(ft.Text("B")), ft.DataCell(ft.Text("2"))]),
],
),
)

ft.app(target=main)

[jackwan990]

Looking forward to your answer，thanks