Proper use of dialogService.ShowOpenFileDialogAsync

[msh2050]

I'm using Avalonia 11.05 with .net7 the result.OpenReadAsync() is working with desktop and Android but not with the Web platform. how can I check if the file is loaded successfully? And in the case of larga file, how I can read the file uploading status.

private async Task OpenFileAsync()
{

    var settings = GetSettings(false);
    var result = await _dialogService.ShowOpenFileDialogAsync(this, settings);

    if (result?.Path != null)
    { 
        using var stream =  result.OpenReadAsync();

        ReadExcel(stream.Result);
    }

}

[mysteryx93]

I've just fixed the Web demo so it at least runs... it's going to require a little bit of work

[mysteryx93]

Browser app really isn't behaving well.

Posted some issues there https://github.com/AvaloniaUI/Avalonia/issues/14065

[msh2050]

I managed to make it work with the browser and I added the upload status this is my code `maybe you need to remove some extra code that I add for my specific needs'

var ms = new MemoryStream();
var settings = GetSettings();
var result = await _dialogService.ShowOpenFileDialogAsync(this, settings);
IProgress<long> progress = new SynchronousProgress<long>(value =>
{
    ProgressBarCurrentValue = value;
    StatusText = value.ToString();
});

if (result?.Path != null)
{

    StatusText = result.Name;
    using var stream = result.OpenReadAsync();
    StatusText += " Open Read Done";
    //await stream.Result.CopyToAsync(ms);
    await stream.ContinueWith(async t =>
    {

        StatusText += " getting the result";
        var streamResult = t.Result;
        StatusText += " Result size: " + streamResult.Length + " starting copy to memory";
        await streamResult.CopyToAsync(ms, progress, source.Token, 1024);
        StatusText += "Done";
        ms.Position = 0;
        StatusText += " size:" + ms.Length;
        await ReadExcel(ms).ConfigureAwait(false);

    });

}

[mysteryx93]

Oh perfect!

I'll add this to the samples.

[mysteryx93]

btw where do you get your source.Token?

[msh2050]

btw where do you get your source.Token?

static readonly CancellationTokenSource source = new ();

[mysteryx93]

you just created your own to have a cancel button?

[msh2050]

You just created your own to have a cancel button?

yes, but I have not implemented it yet. I just want to test this but I may not need it since I have no large files to upload