public bool SaveContact(Contact currentContact)
{
if (this.Store.Any(item => item.Roll == currentContact.Roll))
return false;
this.Store.Add(currentContact);
return true;
}
public bool UpdateContacts(Contact contact)
{
var currentContact = this.Store.FirstOrDefault(e => e.Roll == contact.Roll);
if (currentContact != null)
{
currentContact.Name = contact.Name;
currentContact.Age = contact.Age;
currentContact.Address = contact.Address;
return true;
}
return false;
}