Enable to change Parameters on RootComponent

[Petit-Pas]

I'm fiddling with the MAUI x Blazor thing because I'm really interested in both technologies, and I was looking at sending parameters from MAUI to Blazor component.

When I do something like:

public MainPage()
{
	InitializeComponent();
    RootComponentControl.Parameters = new Dictionary<string, object> { { "InputString", "input string value" }, { "InputClass", dataContext } };
}

in the MAUI component, then

[Parameter]
public string InputString { get; set; }

[Parameter]
public DataContext InputClass{ get; set; }

in the Blazor one, everything gets set perfectly.

However, if I try to later update the Parameter Dictionnary, nothing changed on the Blazor component and the OnParametersSet() function is not being called.
I saw here that the Parameters property is get/init only, and was wondering if it would be a big trouble to enable it to change over time rather than set it into stone.

Maybe even with a binding from MAUI, detecting any change automatically for instance.

[mehmetilker]

Hi @Petit-Pas ,

How did you access from xaml page to BlazorWebView / RootComponentControl control?

[Petit-Pas]

Hello @mehmetilker ,

I used the x:Name defined in the XAML page from the C# of the XAML page. actually the same way you see in my MainPage constructor above here, "RootComponentControl" is just the x:Name I did set in the XAML beforehand.

[mehmetilker]

Thanks @Petit-Pas it worked. Still trying to figure out going from razor pages to xaml page which contains razor page.

From home.razor

        Shell.Current.GoToAsync($"{nameof(Category)}?CategoryId=world",
            new Dictionary<string, object>
                {
                    ["Monkey"] = "aaa"
                });

To Category.xaml

BlazerViewRoot.Parameters = new Dictionary<string, object> { { "CategoryId", CategoryId } };

If I set categoryId manually in Category.xaml, I see the value in Category.razor but nothing has been carried from home.razor

Any idea how to to that?

[Petit-Pas]

I'm not sure if I understand what you mean, but also it has nothing to do with the original post, maybe open a new topic?

[mehmetilker]

No need another topic, since problem still related to carrying parameters to navigated page.

Setting parameters from constructor did not work but it worked with following way (Although I am still not sure this is the proper way...):

    string categoryId;
    public string CategoryId
    {
        get => categoryId;
        set
        {
            categoryId = value;
            OnPropertyChanged();
            BlazerViewRoot.Parameters = new Dictionary<string, object> { { "CategoryId", CategoryId }, { "Bear", bear } };

        }
    }