Telerik FileSelect doesn't upload local files above a certain size threshold

1 Answer 242 Views

FileSelect

Ricardo asked on 24 Feb 2023, 10:07 AM | edited on 24 Feb 2023, 10:08 AM

Hello! I want to import .json files from my local machine using FileSelect:

<TelerikFileSelect AllowedExtensions = "@AllowedExtensions" MaxFileSize="@MaxFileSize" OnSelect = "@OnFileSelectHandlerTest"></TelerikFileSelect>

The maximum file size is set to 4MB and the OnSelect function is as defined below, which is pretty much the example given at Blazor FileSelect - Events - Telerik UI for Blazor:

    async Task OnFileSelectHandler(FileSelectEventArgs args)
    {
        foreach (var file in args.Files)
        {
            var byteArray = new byte[file.Size];
            await using MemoryStream ms = new MemoryStream(byteArray);
            await file.Stream.CopyToAsync(ms);
        }
    }

The method works fine for very small documents, below +- 26KB. Above this threshold, the app warns that it is attempting to reconnect to server and, after a couple of seconds, no document appears which suggests that the application gets stuck awaiting the CopyToAsync. The rest of the application (outside the FileSelect component) still works, but I can no longer add new files or remove the ones already selected. Has anyone been experiencing this problem and managed to solve it? (the same happens if I first create a local file and copy asynchronously into it)

Thank you

1 Answer, 1 is accepted

Accepted