protected void LessonAttachmentRepeater_ItemCommand(object source, RepeaterCommandEventArgs e)
{
ApplicationDbContext dbContext = new ApplicationDbContext();
if (e.CommandName == "Download")
{
int attachmentId = int.Parse(e.CommandArgument.ToString());
LessonAttachment lessonAttachment = dbContext.LessonAttachments.Where(la => la.Id == attachmentId).FirstOrDefault();
string fileName = System.IO.Path.GetTempPath() + Guid.NewGuid().ToString() + "." + lessonAttachment.FileType;
FileInfo fileInfo = new FileInfo(fileName);
using (var stream = fileInfo.OpenWrite())
{
stream.Write(lessonAttachment.Data, 0, lessonAttachment.Data.Count());
}
Response.ContentType = lessonAttachment.FileType;
Response.AppendHeader("Content-Disposition", string.Format("attachment; filename={0}.{1}", lessonAttachment.Title, lessonAttachment.FileType));
Response.TransmitFile(fileInfo.FullName);
Response.End();
}
else if (e.CommandName == "Upload")
{
}
}
public async Task <IActionResult> AddAttachment(IFormFile file, int lessonId)
{
LessonAttachment attachment =
await _attachmentService.AddAsync(file, AttachmentType.Lesson) as LessonAttachment;
attachment.LessonId = lessonId;
await _db.SaveChangesAsync();
return(Ok(_mapper.Map <AttachmentDto>(attachment)));
}
public async Task <IActionResult> DeleteAttachment(int id)
{
LessonAttachment entity = await _db.LessonAttachments.SingleOrDefaultAsync(x => x.Id == id);
if (entity == null)
{
return(NotFound());
}
_db.LessonAttachments.Remove(entity);
await _db.SaveChangesAsync();
return(Ok());
}
protected void LessonAttachmentButton_Click(object sender, EventArgs e)
{
if (LessonAttachmentUpload.HasFile)
{
try
{
ApplicationDbContext dbContext = new ApplicationDbContext();
string fileName = Path.GetFileName(LessonAttachmentUpload.FileName);
string fileType = Path.GetExtension(fileName).Replace(".", "");
LessonAttachment lessonAttachment = new LessonAttachment();
lessonAttachment.Title = LessonAttachmentUpload.FileName;
lessonAttachment.FileType = fileType;
lessonAttachment.Data = LessonAttachmentUpload.FileBytes;
Lesson CurrentLesson = (Lesson)Session["CurrentLesson"];
lessonAttachment.Lesson = dbContext.Lessons.Where(l => l.Id == CurrentLesson.Id).FirstOrDefault();
dbContext.LessonAttachments.Add(lessonAttachment);
dbContext.SaveChanges();
LessonAttachmentRepeater.DataBind();
HomePanel.Visible = false;
LessonPanel.Visible = true;
ActivePanelLabel.Text = "Lessons";
}
catch
{
}
}
}
