How to validate an URI ?

Maximilien

EDI : Fixed by changing the pack with "mx-appx" as per documentation example. Is there a way to check or validate if an URI is valid ? The Assets folder is in my solution

System.Uri icon = new System.Uri("pack://application:,,,/Assets/icon.png");

This is part of this code which crashes at the instantiation of the ToastCollection.

public async void CreateToastCollection()
{
string displayName = "Is Potato";
string launchArg = "NavigateToPotato";
System.Uri icon = new System.Uri("pack://application:,,,/Assets/icon.png");

        // **CRASH here**
        ToastCollection licensingManagerToastCollection = new ToastCollection(
            "MyToastCollection",
            displayName,
            launchArg,
            icon);

        // Calls the platform to create the collection
        await ToastNotificationManager.GetDefault().GetToastCollectionManager().SaveToastCollectionAsync(licensingManagerToastCollection);
    }

Thanks.

CI/CD = Continuous Impediment/Continuous Despair

OriginalGriff

Have you tried Uri.TryCreate Method (System) | Microsoft Docs[^] - I haven't either, but ...

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Richard Deeming

If it's actually crashing on the new ToastCollection line, then the URI is valid - otherwise, the new Uri line would crash. The ToastCollection probably doesn't support pack: URIs. But that's just a guess, since you haven't provided any details of the error.

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jsc42

The docs say Uri.TryCreate is for .Net 7 and higher. You could try Uri.IsWellFormedUriString (Uri.IsWellFormedUriString(String, UriKind) Method (System) | Microsoft Docs[^]) which covers a wider range of .Net versions.

Dave Kreskowiak

No it doesn't. The docs for Uri.TryCreate go all the way back to .NET Framework 1.1.

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Dave Kreskowiak

Maximilien

I think the error was at the URI statement, I checked the [documentation](https://docs.microsoft.com/en-us/windows/apps/design/shell/tiles-and-notifications/toast-collections) (well, :-O duh) and they use "ms-appx:" instead. Still having errors on related code. Will ask another question. Thanks

CI/CD = Continuous Impediment/Continuous Despair

Richard Deeming

According to the documentation[^], Toast images only support the following URI schemas:

http:// or https://
file:///
ms-appx:///
ms-appdata:///local/

WPF-style pack: URIs are not supported.

"These people looked deep within my soul and assigned me a number based on the order in which I joined." - Homer

Maximilien

Thanks, I missed that one.:rose:

CI/CD = Continuous Impediment/Continuous Despair