public JsonResult ListFiles()
{
StringBuilder result = new StringBuilder();
List <FileInfo> info = DirectoryUtil.GetAllFileUnderDirectory(Environment.CurrentDirectory);
//result.AppendLine($"There are {info.GetFiles().Length} files in folder {Environment.CurrentDirectory}")
foreach (FileInfo file in info)
{
result.AppendLine($"File {file.FullName}, created: {file.CreationTimeUtc}, modified: {file.LastWriteTimeUtc}");
}
return(Json(result.ToString()));
}