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Change the folder with parameter

Last post 03-19-2013, 4:06 PM by Kenneth. 3 replies.


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03-15-2013, 11:51 AM 77047

FlorentG
Joined on 03-15-2013
Posts 2

Change the folder with parameter

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Hello,

I am trying to use your framework and I need to understand how is it possible to change the destination folder using the value of a field of my webpage.

In the method UploadHandler.ashx/OnFileUploaded, I achieved to save my images in an existing folder :

file.CopyTo("~/Documents/" + file.FileName);

but I want to do:

file.CopyTo("~/Documents/" + valueOfMyField + "/" + file.FileName);

I could overload the method with a string parameter which will represents my value or change the FileName but I don't know where I can change the call of the method (and if it's possible) or modify the FileName attribute.

I've already taken a look to documentation or other posts in the forum, and I didn't find something close to my problem.

Waiting for a reply, I thank you in advance for your attention.

Filed under: Chrome, MVC3, file upload copy

03-15-2013, 12:22 PM 77049 in reply to 77047

Kenneth
Joined on 02-13-2008
Posts 3,886

Re: Change the folder with parameter

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Hi FlorentG,

You can achieve the same thing in the controller directly, then you can get your text field value. Like the example below, you can save the upload file in the red part.

           public ActionResult selecting_multiple_files(string myuploader)
            {
                  using (CuteWebUI.MvcUploader uploader = new CuteWebUI.MvcUploader(System.Web.HttpContext.Current))
                  {
                        uploader.UploadUrl = Response.ApplyAppPathModifier("~/UploadHandler.ashx");
                        //the data of the uploader will render as <input type='hidden' name='myuploader'>
                        uploader.Name = "myuploader";
                        uploader.AllowedFileExtensions = "*.jpg,*.gif,*.png,*.bmp,*.zip,*.rar";
                        //allow select multiple files
                        uploader.MultipleFilesUpload = true;
                        //tell uploader attach a button
                        uploader.InsertButtonID = "uploadbutton";
                        //prepair html code for the view
                        ViewData["uploaderhtml"] = uploader.Render();
                        //if it's HTTP POST:
                        if (!string.IsNullOrEmpty(myuploader))
                        {
                              List<string> processedfiles = new List<string>();
                              //for multiple files , the value is string : guid/guid/guid
                              foreach (string strguid in myuploader.Split('/'))
                              {
                                    Guid fileguid = new Guid(strguid);
                                    CuteWebUI.MvcUploadFile file = uploader.GetUploadedFile(fileguid);
                                    if (file != null)
                                    {
                                          //you should validate it here:
                                          //now the file is in temporary directory, you need move it to target location
                                          //file.MoveTo("~/myfolder/" + file.FileName);
                                          processedfiles.Add(file.FileName);
                                    }
                              }
                              if (processedfiles.Count > 0)
                              {
                                    ViewData["UploadedMessage"] = string.Join(",", processedfiles.ToArray()) + " have been processed.";
                              }
                        }
                  }
                  return View();
            }

Regards,

Ken

03-19-2013, 3:43 PM 77065 in reply to 77049

FlorentG
Joined on 03-15-2013
Posts 2

Re: Change the folder with parameter

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Hi,
Thank you for your quick answer !
I understand your solution but I tried to call a method of my controller (selecting_multiple_files) but it's never been hit by my breakpoint.
The only thing (and the most important) that I didn't understand is how to call this method instead of OnFileUploaded (because when this method is called, it seems to be too late to get the value of my field).

I tried to change the method called in the form:
@{Html.BeginForm("selecting_multiple_files","trackerController");}
@Html.Raw(ViewBag.uploaderhtml)
@{Html.EndForm();}

or is it possible to overwrite OnFileUploaded to put the field value with Javascript?

Thank you,

FlorentG

03-19-2013, 4:06 PM 77066 in reply to 77065

Kenneth
Joined on 02-13-2008
Posts 3,886

Re: Change the folder with parameter

Reply Quote

Hi FlorentG,

it will fire when page post back, so you do not need to call it by code. the OnFileUploaded is fire after page post back too, so should be same as it.

Regards,

Ken