public override bool Equals(object obj)
{
Students st = obj as Students;
if (st == null)
{
return(false);
}
return(FirstName == st.FirstName &&
LastName == st.LastName &&
BirthPlace == st.BirthPlace &&
IndexNo == st.IndexNo &&
BirthDate.Equals(st.BirthDate) &&
IDGroup.Equals(st.IDGroup));
}
public override int GetHashCode()
{
return(Name.GetHashCode() & IDGroup.GetHashCode());
}