Unknown control: navigationdrawer

[Muddassir-Farooq-official]

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• I have searched the opened issues and there are no duplicates

Describe the bug

facing an issue Unknown control: navigationdrawer when return navigation drawer using class build function

Code sample

Code

import flet as ft

class Navbar_Control(ft.UserControl):
    def __init__(self):
        super().__init__()
        self.theme_color = ft.colors.BLUE_900
    
    def build(self):
        return ft.NavigationDrawer(
        controls=[
        ft.Container(height=12),
        ft.Container(
                content=ft.Column(
                [
                    
                    #ft.Text(value="AL-BURAQ",color='#084d0d')
                ],
                 horizontal_alignment='center'
            ),
            width=200,alignment=ft.alignment.center
            ),
        #ft.Container(height=22),
        
        ft.ListTile(title=ft.Text("Dashboard",color=self.theme_color),leading=ft.Icon(ft.icons.DASHBOARD),icon_color=self.theme_color),
        
        ft.ExpansionTile(
            title=ft.ListTile(title=ft.Text("Admission",color=self.theme_color),leading=ft.Icon(ft.icons.PERSON),icon_color=self.theme_color,bgcolor=''),
            affinity=ft.TileAffinity.PLATFORM,
            maintain_state=True,
            controls=[
                    ft.ListTile(title=ft.Text("New Admission",color=self.theme_color)),
                    
            ],
        ),

        ft.ExpansionTile(
            title=ft.ListTile(title=ft.Text("Manage Students",color=self.theme_color),leading=ft.Icon(ft.icons.PERSON),icon_color=self.theme_color,bgcolor=''),
            affinity=ft.TileAffinity.PLATFORM,
            maintain_state=True,
            controls=[
                    ft.ListTile(title=ft.Text("Students List",color=self.theme_color)),
                    
            ],
        ),

        ft.ExpansionTile(
            title=ft.ListTile(title=ft.Text("Manage Classes",color=self.theme_color),leading=ft.Icon(ft.icons.PERSON),icon_color=self.theme_color,bgcolor=''),
            affinity=ft.TileAffinity.PLATFORM,
            maintain_state=True,
            controls=[
                    ft.ListTile(title=ft.Text("New Class",color=self.theme_color),on_click= lambda _: self.page.go("New_class")),
                    
            ],
        ),

        ft.ExpansionTile(
            title=ft.ListTile(title=ft.Text("Manage Programs",color=self.theme_color),leading=ft.Icon(ft.icons.PERSON),icon_color=self.theme_color,bgcolor=''),
            affinity=ft.TileAffinity.PLATFORM,
            maintain_state=True,
            controls=[
                    ft.ListTile(title=ft.Text("New Program",color=self.theme_color)),
                    
            ],
        ),

        ft.ListTile(title=ft.Text("Logout",color=self.theme_color),leading=ft.Icon(ft.icons.LOGOUT),icon_color=self.theme_color),

        ],
        bgcolor='white',
        #indicator_color=ft.colors.RED,
        #indicator_shape=ft.RoundedRectangleBorder(radius=5),
        
    )

To reproduce

i want to display navigationdrawer

Expected behavior

No response

Screenshots / Videos

Captures

Operating System

Windows

Operating system details

Windows 10

Flet version

0.24.1

Regression

No, it isn't

Suggestions

No response

Logs

Logs

C:\Users\Muddassir Farooq\Desktop\OOP\main.py:37: DeprecationWarning: window_always_on_top is deprecated in version 0.23.0 and will be removed in version 0.26.0. Use Page.window.always_on_top instead.
  page.window_always_on_top = True
Future exception was never retrieved
future: <Future finished exception=ValueError('control has no open attribute')>
Traceback (most recent call last):
  File "C:\Users\Muddassir Farooq\AppData\Local\Programs\Python\Python312\Lib\concurrent\futures\thread.py", line 58, in run
    result = self.fn(*self.args, **self.kwargs)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\Muddassir Farooq\AppData\Local\Programs\Python\Python312\Lib\site-packages\flet_core\page.py", line 944, in wrapper
    handler(*args)
  File "C:\Users\Muddassir Farooq\Desktop\OOP\views.py", line 43, in <lambda>
    leading=ft.IconButton(icon=ft.icons.MENU,icon_color='white',on_click= lambda _: page.open(navbar)),
                                                                                    ^^^^^^^^^^^^^^^^^
  File "C:\Users\Muddassir Farooq\AppData\Local\Programs\Python\Python312\Lib\site-packages\flet_core\page.py", line 1409, in open
    raise ValueError("control has no open attribute")
ValueError: control has no open attribute

Additional details

No response

[ndonkoHenri]

NavDrawer is not to be added directly to the page like other controls. If you need it in the page, then make use of Pagelet control.

Share runnable code if you need further assistance.

[Muddassir-Farooq-official]

Rive is also showing as unknown control after build apk

[ndonkoHenri]

Might be related to #3867