Shell Navigation using query parameters and a Dictionary

Question

Hi Friends,

I have asked this question before, but I should have been a little more detail. Let me begin with the code that was shared with me by someone that was very helpful...

But my question has a few caveats, meaning that the page that I am using in the Shell.Current.GoToAsync is a TabbedPage that has all of the pages related to the that particular functionality of the app. So, again I am not navigating to a ContentPage but a TabbedPage. i.e. await Shell.Current.GoToAsync($"{nameof(PayerEditView)}", navigationParameter); All page(s) reference the same ViewModel so I want to set the navigationParameter in the constructor of the viewmodel. I would greatly appreciate any ideas on how I would achieve this. Thanks !!!

private async void letsseeifthisworks(object sender, EventArgs e)
    {
        MenuFlyoutItem mfi=(MenuFlyoutItem )sender;
        
        
        var navigationParameter = new Dictionary<string, object>
        {
            {"theTeamId",0}
        };
        await Shell.Current.GoToAsync($"{nameof(TeamsPage)}", navigationParameter);

    }

Answer 1

Hello,

If you want to get the transferred value in the View Model, it is recommended way to implement IQueryAttributable interface, get the value by ApplyQueryAttributes method in the ViewModel.

Best Regards,

Leon Lu

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