public async Task OnPostUploadAsync()
{
if (IsFile(UploadedFile.FileName))
{
string filename = UniqueFilename(UploadedFile.FileName);
var stream = new MemoryStream();
UploadedFile.CopyTo(stream);
System.IO.File.WriteAllBytes(FilePathFolder + filename, stream.ToArray());
FileListValue = filename;
await OnPostSelectFileAsync();
}
}