/// <summary>
/// Maintains the specified collection from the changes
/// </summary>
/// <param name="changes">The changes.</param>
/// <param name="collection">The collection.</param>
public void Adapt(ISortedChangeSet <TObject, TKey> changes, IObservableCollection <TObject> collection)
{
switch (changes.SortedItems.SortReason)
{
case SortReason.InitialLoad:
{
if (changes.Count > _refreshThreshold())
{
using (collection.SuspendNotifications())
{
collection.Load(changes.SortedItems.Select(kv => kv.Value));
}
}
else
{
using (collection.SuspendCount())
{
DoUpdate(changes, collection);
}
}
}
break;
case SortReason.ComparerChanged:
case SortReason.Reset:
using (collection.SuspendNotifications())
{
collection.Load(changes.SortedItems.Select(kv => kv.Value));
}
break;
case SortReason.DataChanged:
if (changes.Count > _refreshThreshold())
{
using (collection.SuspendNotifications())
{
collection.Load(changes.SortedItems.Select(kv => kv.Value));
}
}
else
{
using (collection.SuspendCount())
{
DoUpdate(changes, collection);
}
}
break;
case SortReason.Reorder:
//Updates will only be moves, so appply logic
using (collection.SuspendCount())
{
DoUpdate(changes, collection);
}
break;
default:
throw new ArgumentOutOfRangeException();
}
}
/// <summary>
/// Maintains the specified collection from the changes
/// </summary>
/// <param name="changes">The changes.</param>
public void Adapt(IChangeSet <T> changes)
{
if (changes.TotalChanges - changes.Refreshes > _refreshThreshold || !_loaded)
{
using (_collection.SuspendNotifications())
{
_collection.Clone(changes);
_loaded = true;
}
}
else
{
_collection.Clone(changes);
}
}
/// <summary>
/// Maintains the specified collection from the changes
/// </summary>
/// <param name="changes">The changes.</param>
/// <param name="collection">The collection.</param>
public void Adapt(IChangeSet <TObject, TKey> changes, IObservableCollection <TObject> collection)
{
_cache.Clone(changes);
if (changes.Count > _refreshThreshold || !_loaded)
{
_loaded = true;
using (collection.SuspendNotifications())
{
collection.Load(_cache.Items);
}
}
else
{
using (collection.SuspendCount())
{
DoUpdate(changes, collection);
}
}
}
/// <summary>
/// Maintains the specified collection from the changes.
/// </summary>
/// <param name="changes">The changes.</param>
public void Adapt(IChangeSet <T> changes)
{
if (changes is null)
{
throw new ArgumentNullException(nameof(changes));
}
if (changes.TotalChanges - changes.Refreshes > _refreshThreshold || !_loaded)
{
using (_collection.SuspendNotifications())
{
_collection.Clone(changes);
_loaded = true;
}
}
else
{
_collection.Clone(changes);
}
}
public IDisposable SuspendNotifications() => _collection?.SuspendNotifications() ?? Disposable.Empty;
