[Question]

[molihuan]

Question

I want to obtain configuration data through “self.page.client_storage.get("GroupMsg")” when loading UserControl, but I keep getting errors: 'NoneType' object has no attribute 'client_storage'

Code sample

class QuickFacebookAccountPage(UserControl):
    def __init__(self, parent: Page):
        super().__init__()
        self.parent = parent

    def initData(self):
        tt = self.page.client_storage.get("GroupMsg")
        print(tt)

    def build(self):
        self.initData()
        return Text("666")

Error message

AttributeError: 'NoneType' object has no attribute 'client_storage'

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

[FeodorFitsner]

Because self.page is available after the control is added to a page:

class QuickFacebookAccountPage(UserControl):
    def __init__(self, parent: Page):
        super().__init__()
        self.parent = parent

    def did_mount(self):
        self.initData()

    def initData(self):
        tt = self.page.client_storage.get("GroupMsg")
        print(tt)

    def build(self):
        return Text("666")

[molihuan]

What should i do.Thanks

[FeodorFitsner]

Use did_mount().

[molihuan]

Use did_mount().

i see Thank you very much