public int CompareTo(ContactData other)
{
if (Object.ReferenceEquals(other, null))
{
return(1);
}
if (SecondName == other.SecondName)
{
if (FirstName == other.FirstName)
{
return(0);
}
return(SecondName.CompareTo(other.SecondName));
}
return(SecondName.CompareTo(other.SecondName));
}
public int CompareTo(ContactData other)
{
if (Object.ReferenceEquals(other, null))
{
return(1);
}
int result = SecondName.CompareTo(other.SecondName);
if (result != 0)
{
return(result);
}
else
{
return(FirstName.CompareTo(other.FirstName));
}
}
public int CompareTo(object obj)
{
return(SecondName.CompareTo(((Person)obj).SecondName));
}
/// <summary>
/// Реализация интерфейса IComparable по полю фамилия
/// </summary>
/// <param name="obj"></param>
/// <returns></returns>
public int CompareTo(object obj)
{
return(SecondName.CompareTo(obj));
}