/// <summary>
/// Returns the starting index of a collection in the aggregate
/// collection.
/// </summary>
/// <param name="index">The starting index of a collection.</param>
/// <returns>
/// The starting index of the collection in the aggregate
/// collection.
/// </returns>
private int GetStartingIndexOfCollectionAtIndex(int index)
{
return
(ChildCollections.OfType <IEnumerable>()
.Select(collection => collection.Cast <T>())
.Take(index)
.SelectMany(collection => collection)
.Count());
}
/// <summary>
/// Rebuild the list in the correct order when a child collection
/// changes.
/// </summary>
private void Rebuild()
{
this.Mutate(that => that.Clear());
this.Mutate(that =>
{
IList <T> items = ChildCollections.OfType <IEnumerable>().Select(collection => collection.Cast <T>()).SelectMany(collection => collection).ToList();
foreach (T item in items)
{
that.Add(item);
}
});
}
/// <summary>
/// Rebuild the list in the correct order when a child collection
/// changes.
/// </summary>
private void Rebuild()
{
this.Clear();
//this.Items.Clear();
IList <T> items = ChildCollections.OfType <IEnumerable>().Select(collection => collection.CastWrapper <T>()).SelectMany(collection => collection).ToList();
foreach (T item in items)
{
//this.Items.Add(item);
this.Add(item);
}
}