public void addItem(RSSItem newItem)
{
if (newItem != null)
{
items.Add(newItem);
items.Sort();
}
else
{
throw new ArgumentNullException(nameof(newItem));
}
}
public int CompareTo(object obj)
{
if (obj == null)
{
return(1);
}
RSSItem otherItem = obj as RSSItem;
if (otherItem != null)
{
return(this.guid.CompareTo(otherItem.guid));
}
else
{
throw new ArgumentException("Object is not a RSSItem");
}
}