@page "/" @using Telerik.Blazor.Components.FileSelect @inject IWebHostEnvironment HostingEnvironment
Expected files: JPG, PNG, GIF
@code { public Dictionary Tokens { get; set; } = new Dictionary(); private void HandleFiles(FileSelectEventArgs args) { foreach (var file in args.Files) { if (!file.InvalidExtension) { _ = UploadFile(file); } } } public List AllowedExtensions { get; set; } = new() { ".xlsx" }; private async Task UploadFile(FileSelectFileInfo file) { Tokens.Add(file.Id, new CancellationTokenSource()); var path = Path.Combine(HostingEnvironment?.WebRootPath, file.Name); await using FileStream fs = new FileStream(path, FileMode.Create); await file.Stream.CopyToAsync(fs, Tokens[file.Id].Token); } }