/// <summary>
/// Updates a collection of items by removing the exceding items and adding the missing items
/// from another set of items.
/// </summary>
/// <typeparam name="T">The type of the items</typeparam>
/// <param name="collection">The collection to update</param>
/// <param name="items">The set of items to compare the collection to</param>
/// <param name="comparer">The way to determine if two items are equal</param>
public static void Update <T>(
this Collection <T> collection, IEnumerable <T> items, IEqualityComparer <T> comparer)
{
var diff = collection.Differences(items, comparer);
collection.RemoveAll(diff.Item1);
collection.AddAll(diff.Item2);
}
public void CollectInto(Collection result)
{
if (Multityped is Collection collection) {
result.AddAll(collection);
}
else {
result.Add(Multityped);
}
}
public void CollectInto(Collection result)
{
if (!(Multityped is Collection))
{
result.Add(Multityped);
return;
}
result.AddAll((Collection) Multityped);
}
/// <summary>
/// Updates a collection of items by removing some items and adding others.
/// </summary>
/// <typeparam name="T">The type of the items</typeparam>
/// <param name="collection">The collection to update</param>
/// <param name="diff">A tuple with the items to remove and the items to add</param>
public static void Update <T>(
this Collection <T> collection, Tuple <IEnumerable <T>, IEnumerable <T> > diff)
{
collection.RemoveAll(diff.Item1);
collection.AddAll(diff.Item2);
}
