public bool Add(T value, NSString label)
{
int _;
return(ABMultiValue.AddValueAndLabel(Handle,
toNative(value),
ABMultiValue.ToIntPtr(label),
out _));
}
public bool Insert(int index, T value, NSString label)
{
int _;
return(ABMultiValue.InsertValueAndLabelAtIndex(Handle,
toNative(value),
ABMultiValue.ToIntPtr(label),
index,
out _));
}