public ActionResult InviteVolunteer(int volid, int proid)
{
Volunteer volunteer = db.Volunteers.Find(volid);
VolunteerProject project = db.VolunteerProjects.Find(proid);
volunteer.AddInvite(project);
db.Entry(project).State = EntityState.Modified;
db.Entry(volunteer).State = EntityState.Modified;
db.SaveChanges();
return(RedirectToAction("Volunteer", "Organization", new { id = volunteer.ID }));
}