upload error without detail

[Dario]

I'm trying to implement an upload into a window.

this is a code

<!-- >> IMPORT EXCEL-->

 

@{Html.Kendo().Window()

          .Name("importExcelFileWindow")

          .Title("Importa file Excel")

          .Width(500)

          .Height(300)

          .Content(@<text>

        @using (Html.BeginForm("ImportExcelFile", "UploadContacts", FormMethod.Post))

        {

            @(Html.Kendo().Upload()

                                .Name("excelFiles")

                                .Validation(v=>v.AllowedExtensions(new string[] { ".xlsx", ".xls" }))

                                .Async(a => a

                                    .Save("Async_Save", "UploadContacts")

                                    .Remove("Async_Remove", "UploadContacts")

                                    .AutoUpload(true)

                                ).Events(e=>e.Error("uploadError"))

                                )

        }

        </text>)

.Visible(false)

.Render();

}

<script>

function uploadError(e) {
        alert(e.XMLHttpRequest.response);
    }

[...]

<!-- << IMPORT EXCEL-->

 

 

this is a controller

public class AsyncUploadContactsController : Controller
    {
        public IWebHostEnvironment HostingEnvironment { get; set; }
        public string incomingFolder { get; set; }
        private readonly BusinessDbContext _context;

        public AsyncUploadContactsController(IWebHostEnvironment hostingEnvironment, BusinessDbContext context)
        {
            HostingEnvironment = hostingEnvironment;
            _context = context;

            incomingFolder = "App_Data";
        }

        [HttpPost]
        public ActionResult ImportExcelFile()
        {
            return View();
        }

        public async Task<ActionResult> Async_Save(IEnumerable<IFormFile> files)
        {
            if (files != null)
            {
                foreach (var file in files)
                {
                    var fileContent = ContentDispositionHeaderValue.Parse(file.ContentDisposition);

                    var fileName = Path.GetFileName(fileContent.FileName.ToString().Trim('"'));
                    var physicalPath = Path.Combine(HostingEnvironment.WebRootPath, incomingFolder, fileName);

                    using (var fileStream = new FileStream(physicalPath, FileMode.Create))
                    {
                        await file.CopyToAsync(fileStream);
                    }
                }
            }

            // Return an empty string to signify success
            return Content("");
        }

        public ActionResult Async_Remove(string[] fileNames)
        {
            // The parameter of the Remove action must be called "fileNames"

            if (fileNames != null)
            {
                foreach (var fullName in fileNames)
                {
                    var fileName = Path.GetFileName(fullName);
                    var physicalPath = Path.Combine(HostingEnvironment.WebRootPath, incomingFolder, fileName);

                    if (System.IO.File.Exists(physicalPath))
                        System.IO.File.Delete(physicalPath);
                }
            }

            // Return an empty string to signify success
            return Content("");
        }
    }

 

when I open the window and I try to upload a file, I obtain this effect (attached screen-shots)

 

The strange thing is that if I set a breakpoint into actions, I notice that it doesn't go into an action AsynchSave.

I create App_Data folder into wwwroot node's project (is it corrects?

Where I wrong?

 

[Dario]

Ok I'm a stupid dev, controller's name was wrong.

Now, it doesn't shows me any error, but it goes inside into Async_Save and it doesn't found any file, I have add one file instead.

Why?

 

[Ivan Danchev]

Hello Dario,

The name of the Upload is "excelFiles":

.Name("excelFiles")

so the parameter of the action should use the same name:

public async Task<ActionResult> Async_Save(IEnumerable<IFormFile> excelFiles)
{
     //...
}

Regards,
Ivan Danchev
Progress Telerik

[Dario]

Great! Thank you!