System.Collections.Generic.List.Add(imageEdit)

[HttpPost]
        [Obsolete]
        public async Task<IActionResult> OnPostUploadImage([FromServices] IHostingEnvironment environment)
        {
            List<imageEdit> fileUrl = new List<imageEdit>();
            var files = Request.Form.Files;
            if (string.IsNullOrWhiteSpace(environment.WebRootPath))
            {
                environment.WebRootPath = Path.Combine(Directory.GetCurrentDirectory(), "wwwroot");
            }

            string webRootPath = environment.WebRootPath;
            string filePath = Path.Combine(webRootPath + "/upload/images");
            if (!Directory.Exists(filePath))
            {
                Directory.CreateDirectory(filePath);
            }

            foreach (var formFile in files)
            {
                if (formFile.Length > 0)
                {
                    var ext = Path.GetExtension(formFile.FileName);

                    var fileName = Guid.NewGuid().ToString() + ext;
                    var path = Path.Combine(webRootPath + "/upload/images", fileName);
                    using (var stream = new FileStream(path, FileMode.CreateNew))
                    {
                        await formFile.CopyToAsync(stream);
                        fileUrl.Add(new imageEdit() { url = $"#/File/ShowNoticeImg?filePath={fileName}", alt = "", href = "" });
                        stream.Close();
                    }
                }
            }
            return new JsonResult(new { errno = 0, data = fileUrl });
        }