mvc3 file upload - asp.net-mvc-3

Question

Whenever I try to upload a file to a server the current View is redirected to a different View from the controller. How can I upload a file and stay on the same View.
I have tried the following code:
public Action Result(HttpPostedFileBase file)
{
return new EmptyResult();
}

Answer 1

Return View();
Should work as you'd expect, returning the View named Result.
If the current Action Method isn't the view you'd like to return you can use:
return RedirectToAction("actionmethodname");

Answer 2

I would suggest using something like plupload for async upload. That way you can upload without redirect and even view image/document when upload is complete.
It allows multiple upload and fallback through different methods to successfully upload a file.
For implementation you just create another controller just for handling uploads.

Answer 3

Check my code for article submission in MVC architechture.
public ActionResult Submit(ArticleViewModel newSubmit, HttpPostedFileBase uploadFile)
{
if (ModelState.IsValid)
{
//Upload File
if (uploadFile != null)
{
string fileName = uploadFile.FileName;
newSubmit.Article.image = fileName;
uploadFile.SaveAs("~/Content/Uploads/Images");
string savedFileName = Path.Combine(Server.MapPath("~/Content/Uploads/Images"), uploadFile.FileName);
}
// The HTML comes encoded so we decode it before insert into database
newSubmit.Article.content = HttpUtility.HtmlDecode(newSubmit.Article.content);
//Set article flags
newSubmit.Article.flagged = true;
newSubmit.Article.finished = false;
newSubmit.Article.submitStoryFlag = true;
//Insert article in the database _repository.AddArticle(newSubmit);
return View("Submitted");
}
else
{
// Invalid – redisplay with errors
return View(newSubmit);
}
}

Answer 4

Suppose your view name is UploadView.cshtml and from there, you are uploading file.
UploadView.cshtml
#using (Html.BeginForm("UploadFile", "MyController", FormMethod.Post, new { enctype = "multipart/form-data", id = "frm", name = "frm" }))
{
<input id="FileAttachments" type="file" name="FileAttachments" />
<input type="submit" value="upload" />
}
Your Controller would be
MyController.cs
[HttpGet]
public ActionResult UploadView()
{
Return View();
}
[HttpPost]
public ActionResult UploadFile(HttpPostedFileBase FileAttachments)
{
if (FileAttachments != null)
{
string fileName = System.Guid.NewGuid().ToString() + Path.GetFileName(FileAttachments.FileName);
fileName = Path.Combine(Server.MapPath("~/Content/Files"), fileName);
FileAttachments.SaveAs(fileName);
}
return View("UploadView");
}