10.0: NoteDelete

In this section, we'll write the code to get rid of a note.

Delete GET Method and View

1. Open NoteController.cs

2. Copy the Details(int id) method

3. Paste it underneath the Edit(int id, NoteEdit model) method

4. Change the name to Delete

        [ActionName("Delete")]
        public ActionResult Delete(int id)
        {
            var svc = CreateNoteService();
            var model = svc.GetNoteById(id);
   
            return View(model);
        }

5. Right click on Delete(int id) and add a view:

   

Delete POST Method

1. Back in NoteController.cs, create an ActionResult to remove the note from the database

2. This will need a different name due to overloading issues

    [HttpPost]
    [ActionName("Delete")]
    [ValidateAntiForgeryToken]
    public ActionResult DeletePost(int id)
    {
        return RedirectToAction ("Index");
    }

3. Add some validation to the code:

    [HttpPost]
    [ActionName("Delete")]
    [ValidateAntiForgeryToken]
    public ActionResult DeletePost(int id)
    {
        var service = CreateNoteService();
   
        service.DeleteNote(id);
   
        TempData["SaveResult"] = "Your note was deleted";
   
        return RedirectToAction ("Index");
    }

4. Ignore the error for now, it will go away once we add the code below in the NoteService

NoteService

1. Open NoteService.cs

2. Create a Delete method under the UpdateNote method:

    public bool DeleteNote(int noteId)
    {
        using (var ctx = new ApplicationDbContext())
        {
            var entity = 
                ctx
                    .Notes
                    .Single(e => e.NoteId == noteId && e.OwnerId == _userId);
   
            ctx.Notes.Remove(entity);
   
            return ctx.SaveChanges() == 1;
        }
    }

3. Run the app and make sure you can delete a note

   

4. You should get a message that your note was deleted

   

5. Open up your dbo.Note to confirm that the specified note was deleted.

   Before

   

   After

   

6. 

Next, we'll change the date/time format