.Net Core Delete uploaded Files - asp.net-mvc

Question

I am using ASP.NET Core to upload files to my database.
Where I have two database, one for the create and for the files.
My code looks like this:
public async Task<IActionResult> Create([Bind("ID,Name,Email,Job Title,ICollection<IFormFile> uploads, Track track)
{
if (ModelState.IsValid)
{
_context.Add(track);
// Uploading files for the Request Database
foreach (var upload in uploads)
{
if (upload.Length > 0)
{
// Getting file into buffer.
byte[] buffer = null;
using (var stream = upload.OpenReadStream())
{
buffer = new byte[stream.Length];
stream.Read(buffer, 0, (int)stream.Length);
}
// Converting buffer into base64 code.
string base64FileRepresentation = Convert.ToBase64String(buffer);
// Saving it into database.
_context.Upload.Add(new Request()
{
UploadName = string.Format("{0}_{1}", DateTime.UtcNow.ToString("yyyyMMddHHmmss"), Request.FileName),
Uploadcode = base64FileRepresentation,
TrackID = track.ID,
});
await _context.SaveChangesAsync();
}
}
await _context.SaveChangesAsync();
return RedirectToAction("Index");
}
return View(track);
}
In the Edit page, I want to have a button to delete the file that was uploaded to the Track. I have tried to change the delete action from the Controller to the following code, but it didn't work:
[HttpPost, ActionName("DeleteRequest")]
[ValidateAntiForgeryToken]
public async Task<IActionResult> DeleteRequest(int id)
{
var x= await _context.Upload.SingleOrDefaultAsync(m => m.UploadID == id);
_context.Upload.Remove(x);
await _context.SaveChangesAsync();
return RedirectToAction("Index");
}
My view Code
<a asp-action="DeleteRequest"><span class="glyphicon glyphicon-trash" style="color:red;"></span></a>
when I click it, it takes me to empty page with this URL:
localhost:44444/Tracks/DeleteRequest

Answer 1

<a asp-action="DeleteRequest" asp-controller="UpdatYourControllerName"
asp-route-id="#model.UploadId"><span class="glyphicon glyphicon-trash" style="color:red;"></span></a>
public async Task<IActionResult> DeleteRequest(int id)
{
// here debug the id you passed is actually present in db
var x= await _context.Upload.FirstOrDefaultAsync(m => m.UploadID == id);
if(x!=null)
{
_context.Upload.Remove(x);
await _context.SaveChangesAsync();
return RedirectToAction("Index");
}
}