public async Task <IActionResult> Create([Bind("Id,Title,Description,Indx,CourseChapterId,ContentType,FilePath,Duration,IsFree,IsDownloadable")] CourseChapterContent courseChapterContent, Guid cid, IFormFile myfile)
        {
            if (ModelState.IsValid)
            {
                courseChapterContent.FilePath = await UserFile.UploadeNewFileAsync(courseChapterContent.FilePath,
                                                                                   myfile, _environment.WebRootPath, Properties.Resources.Secured);

                if (courseChapterContent.ContentType == ContentType.youtube)
                {
                    int position = courseChapterContent.FilePath.IndexOf("=");
                    courseChapterContent.FilePath = courseChapterContent.FilePath.Substring(position + 1);
                }


                courseChapterContent.Description = courseChapterContent.Description.Replace("\n", "<br/>");


                courseChapterContent.Id = Guid.NewGuid();
                _context.Add(courseChapterContent);
                await _context.SaveChangesAsync();

                return(RedirectToAction("Details", "CourseChapters", new { /* routeValues, for example: */ id = courseChapterContent.CourseChapterId }));
            }
            ViewData["CourseChapterId"] = new SelectList(_context.CourseChapters, "Id", "Name", courseChapterContent.CourseChapterId);
            return(View(courseChapterContent));
        }
        public async Task <IActionResult> Edit(Guid id, [Bind("Id,Title,Description,Indx,CourseChapterId,ContentType,FilePath,Duration,IsFree,IsDownloadable")] CourseChapterContent courseChapterContent, IFormFile myfile)
        {
            if (id != courseChapterContent.Id)
            {
                return(NotFound());
            }

            if (ModelState.IsValid)
            {
                try
                {
                    if (courseChapterContent.ContentType == ContentType.youtube)
                    {
                        int position = courseChapterContent.FilePath.LastIndexOf("=");
                        courseChapterContent.FilePath = courseChapterContent.FilePath.Substring(position + 1);
                    }
                    if (courseChapterContent.ContentType == ContentType.vimeo)
                    {
                        int position = courseChapterContent.FilePath.LastIndexOf("/");
                        courseChapterContent.FilePath = courseChapterContent.FilePath.Substring(position + 1);
                    }

                    courseChapterContent.FilePath = await UserFile.UploadeNewFileAsync(courseChapterContent.FilePath,
                                                                                       myfile, _environment.WebRootPath, Properties.Resources.ScientificEvent);


                    _context.Update(courseChapterContent);
                    await _context.SaveChangesAsync();
                }
                catch (DbUpdateConcurrencyException)
                {
                    if (!CourseChapterContentExists(courseChapterContent.Id))
                    {
                        return(NotFound());
                    }
                    else
                    {
                        throw;
                    }
                }
                var coursechapter = _context.CourseChapters.Include(c => c.Course).SingleOrDefault(c => c.Id == courseChapterContent.CourseChapterId);
                return(RedirectToAction("Details", "Courses", new { /* routeValues, for example: */ id = coursechapter.CourseId }));
            }
            ViewData["CourseChapterId"] = new SelectList(_context.CourseChapters, "Id", "Name", courseChapterContent.CourseChapterId);
            return(View(courseChapterContent));
        }