public IActionResult AddTask([FromForm] int eventId, [FromForm] string taskName, [FromForm] string taskDescription, [FromForm] int serialNumber, [FromForm] string mapNameAndId)
{
int start = mapNameAndId.IndexOf("#");
int mapId = Convert.ToInt32(mapNameAndId.Substring(start + 1));
string userID = HttpContext.User.FindFirstValue(ClaimTypes.Email);
string currentUser = ds.GetNickname(userID);
ViewData.Add("currentUser", currentUser);
ds.AddTask(eventId, serialNumber, taskName, taskDescription, mapId);
return(RedirectToAction("ShowEvent", "Events", new { @eid = eventId }));
}