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[Blazor server-side] OwningComponentBase disposed inside OnParametersSetAsync during Login/Logout

See original GitHub issue

Describe the bug

I have custom authentication provider to provide refresh-less login/logout. If I login/logout on page inheriting OwningComponentBase then I get System.ObjectDisposedException

To Reproduce

Not so sure about reproducing steps but mine steps are:

Going to page with child component having OwningComponentBase
Login/Logout
Receive System.ObjectDisposedException

Got Exceptions? Include both the message and the stack trace

blazor.server.js:15 [2020-04-08T17:04:44.371Z] Error: System.ObjectDisposedException: Cannot access a disposed object.
Object name: 'Category'.
   at Microsoft.AspNetCore.Components.OwningComponentBase`1.get_Service()
   at Shople.Shared.Category.OnParametersSetAsync() in F:\ASP.NET Core\Shople\src\Shared\Category.razor:line 355
   at Microsoft.AspNetCore.Components.ComponentBase.CallStateHasChangedOnAsyncCompletion(Task task)
   at Microsoft.AspNetCore.Components.RenderTree.Renderer.GetErrorHandledTask(Task taskToHandle)

Component::OnParametersSetAsync (component implement IDisposable)

    protected override async Task OnParametersSetAsync()
    {
        Products = null;

        FilterItems = await Service?.GetCategoryFiltersAsync(Model.Category.Id); // OK, NO EXCEPTION

        StateHasChanged();

        Products = (await Service?.GetCategoryProductsAsync(Model.Category.Id, DisplayOrder, Page)).DiscountList((await AuthenticationStateTask).User); // EXCEPTION, Service is disposed... LINE 355
    }

Further technical details

ASP.NET Core version 3.1.2
VS 16.5

Issue Analytics

State:
Created 3 years ago
Comments:6 (2 by maintainers)

Top GitHub Comments

2reactions

javiercncommented, Apr 9, 2020

@glararan here is an example on how to do this. https://github.com/javiercn/CancellableWorkBlazor

1reaction

glararancommented, Apr 9, 2020

@glararan here is an example on how to do this. https://github.com/javiercn/CancellableWorkBlazor

Works like charm! Thank you for example.

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