// adding method
public virtual void AddMember(GymMember gymMeber)
{
MemberInGym member = memberCollection
.Where(p => p.GymMember.GymMemberId == gymMeber.GymMemberId)
.FirstOrDefault();
if (member == null)
{
memberCollection.Add(
new MemberInGym
{
GymMember = gymMeber,
TimeIn = DateTime.Now.ToString("hh:mm")
}
);
}
}
//removing method
public virtual void RemoveMember(GymMember gymMember)
{
memberCollection.Remove(
memberCollection.FirstOrDefault(p => p.GymMember.GymMemberId == gymMember.GymMemberId)
);
}