Downloading File in ASP.NET Core MVC - asp.net-core

Question

Completely new on .Net core from MVC5, so how does download file works with .NET Core? I have tried writing down code but it has errors. Thanks in advance to the helpers.
Controller
public ActionResult Download()
{
string[] files = Path.Combine(_hostingEnvironment.WebRootPath, "uploads");
for (int i = 0; i < files.Length; i++)
{
files[i] = Path.GetFileName(files[i]);
}
ViewBag.Files = files;
return View();
}
public FileResult DownloadFile(string fileName)
{
var filepath = Path.Combine(_hostingEnvironment.WebRootPath, "uploads");
return File(filepath, LineMapping.GetMimeMapping(filepath), fileName);
}
View
<h2>Downloads</h2>
<table>
<tr>
<th>File Name</th>
<th>Link</th>
</tr>
#for (var i =0; i <= Model.Count -1; i++) {
<tr>
<td>
#Model[i].ToString()
</td>
<td>
#Html.ActionLink("Download", "Download", new { ImageName=#Model[i].ToString() })
</td>
</tr>
}

Answer 1

The code as written will not even compile because Path.Combine does not return a list of files. You will also get parsing errors in your view because you reference Model but you don't have a model. Also, your parameter ImageName doesn't match your action's parameter name. Several other issues with the code too (using Count on an array - use Count() or Length.
I think you are trying to do something like this?
Controller
public ActionResult Download()
{
string[] files = Directory.GetFiles(Path.Combine(_hostingEnvironment.WebRootPath, "uploads"));
for (int i = 0; i < files.Length; i++)
{
files[i] = Path.GetFileName(files[i]);
}
return View(files);
}
public FileResult DownloadFile(string fileName)
{
var filepath = Path.Combine(_hostingEnvironment.WebRootPath, "uploads", fileName);
return File(filepath, "application/pdf", fileName);
}
View
<table>
<tr>
<th>File Name</th>
<th>Link</th>
</tr>
#for (var i = 0; i <= Model.Length - 1; i++)
{
<tr>
<td>
#Model[i].ToString()
</td>
<td>
#Html.ActionLink("Download", "DownloadFile", new { fileName = #Model[i].ToString() })
</td>
</tr>
}
</table>