Skip to content

INavigationParameterReceiver is null (Chapter 08) #1

@macik1423

Description

@macik1423

I am trying to implement solution with INavigationParameterReceiver from Chapter 08/Passing parameters section, but there is receiver is null here:

public class NavigationService : INavigationService
{
    public Task GoBack() => Shell.Current.GoToAsync("..");

    public Task GoToXXX(string name) => Navigate("xxx", 
        new ()
        {
            {
                "name", name
            }
        }
    );

    private static async Task Navigate(string pageName, Dictionary<string, object> parameters)
    {
        await Shell.Current.GoToAsync(pageName);
        if (Shell.Current.CurrentPage.BindingContext is INavigationParameterReceiver receiver) // here receiver is null
        {
            receiver.OnNavigatedTo(parameters);
        }
    }
}

Should I register INavigationParameterReceiver somehow?

Edit: I am debuging my code and Shell.Current.CurrentPage.BindingContext is null, but I don't know why.
I use DI to inject my VMs and here is the class for page:

public partial class XXXPage: ContentView
{
	public XXXPage()
	{
		InitializeComponent();
		BindingContext = ServiceHelper.GetService<XXXVM>();
	}
}

Metadata

Metadata

Assignees

No one assigned

    Labels

    No labels
    No labels

    Type

    No type

    Projects

    No projects

    Milestone

    No milestone

    Relationships

    None yet

    Development

    No branches or pull requests

    Issue actions