void HandlePersonPropertySelection(AddressBook.ABPerson person, AddressBook.ABPersonProperty property, int?id)
{
Console.Error.WriteLine("# perform action; person={0}", person);
toString.Text = person.ToString();
firstName.Text = person.FirstName;
lastName.Text = person.LastName;
identifier.Text = id.ToString();
identifier.Text = id.HasValue ? id.ToString() : "";
}
void HandlePersonSelection(AddressBook.ABPerson person)
{
Console.Error.WriteLine("# select Person: {0}", person);
toString.Text = person.ToString();
firstName.Text = person.FirstName;
lastName.Text = person.LastName;
property.Text = "";
identifier.Text = "";
}