private void Archives_CollectionChanged(object sender, NotifyCollectionChangedEventArgs e)
{
if (ignoreChanges)
{
return;
}
ignoreChanges = true;
// If the collection was reset, then e.OldItems is empty. Just clear and reload.
if (e.Action == System.Collections.Specialized.NotifyCollectionChangedAction.Reset)
{
Archives.Clear();
foreach (var archive in index.Archives)
{
Archives.Add(new ArchiveViewModel(archive, this));
}
}
else
{
// Remove items from collection.
var toRemove = new List <ArchiveViewModel>();
if (null != e.OldItems && e.OldItems.Count > 0)
{
foreach (var item in e.OldItems)
{
foreach (var existingItem in Archives)
{
if (existingItem.IsViewFor((Archive)item))
{
toRemove.Add(existingItem);
}
}
}
}
foreach (var item in toRemove)
{
Archives.Remove(item);
}
// Add new items to the collection.
if (null != e.NewItems && e.NewItems.Count > 0)
{
foreach (var item in e.NewItems)
{
Archives.Add(new ArchiveViewModel((Archive)item, this));
}
}
}
ignoreChanges = false;
}
/// <summary>
/// Reload the ArchiveManager from given directory (optional).
/// </summary>
/// <param name="indir"></param>
public void Reload(DirectoryInfo indir = null)
{
if (indir != null)
{
_parentDirectoryInfo = indir;
}
var archives = _parentDirectoryInfo.GetFiles("*.archive").ToList();
Archives.Clear();
foreach (var fi in archives)
{
Archives.Add(fi.FullName, new Archive(fi.FullName));
}
ReloadFiles();
}