Node.js 16 actions are deprecated. Please update the following actions to use Node.js 20: actions/checkout@v3, actions/setup-dotnet@v3. For more information see: https://github.blog/changelog/2023-09-22-github-actions-transitioning-from-node-16-to-node-20/.

Non-nullable field '_listBox' must contain a non-null value when exiting constructor. Consider declaring the field as nullable.

Non-nullable field '_items' must contain a non-null value when exiting constructor. Consider declaring the field as nullable.

Possible null reference return.

Possible null reference assignment.

Possible null reference assignment.

Possible null reference argument for parameter 'chain' in 'Task<Uri> INavigateStrategy.NavigateAsync(NavigationChain chain, Uri currentUri, string path, CancellationToken cancellationToken)'.

Possible null reference argument for parameter 'chain' in 'Task<Uri> INavigateStrategy.NavigateAsync(NavigationChain chain, Uri currentUri, string path, CancellationToken cancellationToken)'.

Possible null reference argument for parameter 'chain' in 'Task<Uri?> INavigateStrategy.BackAsync(NavigationChain chain, Uri currentUri, CancellationToken cancellationToken)'.

Possible null reference argument for parameter 'chain' in 'Task<Uri> INavigateStrategy.NavigateAsync(NavigationChain chain, Uri currentUri, string path, CancellationToken cancellationToken)'.