how to pass a folder path to mvc controller

Question

I am trying to pass a folder path to a download controller using @Html.ActionLink, but I am getting could not find the location error like

Could not find file 'C:\Teerth Content\Project\Colege\WebApp\Media\@item.Content'

However when I give the hard coded value it does work. May I have suggestions what is wrong with that.

Here is my code: Action method:

public FileResult Download(string fileName, string filePath)
{
    byte[] fileBytes = System.IO.File.ReadAllBytes(filePath);
    string documentName = fileName;
    return File(fileBytes, System.Net.Mime.MediaTypeNames.Application.Octet, documentName);
}

view

@Html.ActionLink("Download", "Download", "Marketing", routeValues: new
{
    fileName = @item.Content,
    filePath = Server.MapPath("~/Media/@item.Content"), 
    area = "AffiliateAdmin"
}, htmlAttributes: null)

`filePath = Server.MapPath("~/Media/"+@item.Content)` – Khaled triki Apr 17 '15 at 13:34 — Khaled triki, Apr 17 '15 at 13:34
Thank you for finding the problem. – Teerth Apr 17 '15 at 13:47 — Teerth, Apr 17 '15 at 13:47

score 2 · Accepted Answer · edited May 23 '17 at 11:43

Like mentioned in comments, you've got an error in your view:

The code ("~/Media/@item.Content") renders as C:\Teerth Content\Project\Colege\WebApp\Media\@item.Content, where you actually want Server.MapPath("~/Media/" + @item.Content) to find the actual filename.

But you need to reconsider this design, as it opens up your entire machine to the web. Someone is bound to try Download("C:\Teerth Content\Project\Colege\WebApp\web.config", "web.config"), exposing your connection strings and other application settings, not to mention other files on your server you really don't want clients to download.

how to pass a folder path to mvc controller

1 Answers1