UWP

Learn more about how Sentry's .NET SDK works with Universal Windows Platform (UWP) applications.

Sentry's .NET SDK works with Universal Windows platform applications through the Sentry NuGet package.

In addition to capturing errors, you can monitor interactions between multiple services or applications by enabling tracing.

Select which Sentry features you'd like to install in addition to Error Monitoring to get the corresponding installation and configuration instructions below.

Install the NuGet package to add the Sentry dependency:

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dotnet add package Sentry -v 5.0.0

In addition to initializing the SDK with SentrySdk.Init, you must configure the UWP specific Application.UnhandledException and Application.Suspending events.

The SDK should be initialized in the constructor of your application class (usually App.xaml.cs). Do not initialize the SDK in the OnLaunched event of the application or the Hub will not be initialized correctly.

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using Sentry.Protocol;
using UnhandledExceptionEventArgs = Windows.UI.Xaml.UnhandledExceptionEventArgs;

sealed partial class App : Application
{
    public App()
    {
        // Initialize Sentry in the App constructor before any other code, to ensure you capture all possible exceptions.
        SentrySdk.Init(options =>
        {
            // Tells which project in Sentry to send events to:
            options.Dsn = "https://examplePublicKey@o0.ingest.sentry.io/0";

            // When configuring for the first time, to see what the SDK is doing:
            options.Debug = true;

            // Set traces_sample_rate to 1.0 to capture 100% of transactions for tracing.
            // We recommend adjusting this value in production.
            options.TracesSampleRate = 1.0;

            // Enable Global Mode since this is a client app.
            options.IsGlobalModeEnabled = true;

            // TODO:Any other Sentry options you need go here.
        });

        // Hook the UWP UnhandledException event before initializing the app component.
        this.UnhandledException += OnUnhandledException;

        // Initialize the app component, and hook the Suspending event.
        this.InitializeComponent();
        this.Suspending += OnSuspending;

        // Add any other code you may need last.
    }

    // Update your OnSuspending handler as shown

    private async void OnSuspending(object sender, SuspendingEventArgs e)
    {
        var deferral = e.SuspendingOperation.GetDeferral();

        // Flush Sentry events when suspending
        await SentrySdk.FlushAsync(TimeSpan.FromSeconds(2));

        // TODO: Save any other application state and stop any background activity.

        deferral.Complete();
    }

    // Add this OnUnhandledException handler.

    // Use these attributes to ensure all types of exceptions are handled.
    [SecurityCritical]
    [HandleProcessCorruptedStateExceptions]
    private void OnUnhandledException(object sender, UnhandledExceptionEventArgs e)
    {
        // Get a reference to the exception, because the Exception property is cleared when accessed.
        var exception = e.Exception;
        if (exception != null)
        {
            // Tell Sentry this was an unhandled exception
            exception.Data[Mechanism.HandledKey] = false;
            exception.Data[Mechanism.MechanismKey] = "Application.UnhandledException";

            // Capture the exception
            SentrySdk.CaptureException(exception);

            // Flush the event immediately
            SentrySdk.FlushAsync(TimeSpan.FromSeconds(2)).GetAwaiter().GetResult();
        }
    }
}

This snippet includes an intentional error, so you can test that everything is working as soon as you set it up.

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try
{
    throw null;
}
catch (Exception ex)
{
    SentrySdk.CaptureException(ex);
}
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