private void Databases_CollectionChanged(object sender, NotifyCollectionChangedEventArgs e)
{
if (e.Action == NotifyCollectionChangedAction.Add)
{
foreach (var database in SessionData.Current.Databases)
{
var dbNav = new DbNavigationNode
{
InstanceId = database.InstanceId,
Name = database.Name,
NodeType = DbNavigationNodeType.Database
};
foreach (var collection in database.Collections)
{
var nodeType = collection is FileCollectionReference ? DbNavigationNodeType.FileCollection : DbNavigationNodeType.Collection;
dbNav.AddChildren(new DbNavigationNode
{
InstanceId = collection.InstanceId,
Name = collection.Name,
NodeType = nodeType
});
}
AddDatabase(dbNav);
}
}
else if (e.Action == NotifyCollectionChangedAction.Remove)
{
if (e.OldItems == null)
{
return;
}
var indexToRemove = new HashSet <nuint>();
foreach (var dbRef in e.OldItems.OfType <DatabaseReference>())
{
for (nuint i = 0; i < _databases.Count; i++)
{
var dbNavNode = _databases.GetItem <DbNavigationNode>(i);
if (dbNavNode != null && dbNavNode.InstanceId.Equals(dbRef.InstanceId))
{
indexToRemove.Add(i);
}
}
}
foreach (var index in indexToRemove)
{
RemoveDatabase((nint)index);
}
}
else if (e.Action == NotifyCollectionChangedAction.Reset)
{
ClearDatabases();
}
}
public void InsertDatabase(DbNavigationNode node, nint index)
{
WillChangeValue(nameof(Databases));
_databases.Insert(node, index);
DidChangeValue(nameof(Databases));
}
public void AddDatabase(DbNavigationNode node)
{
WillChangeValue(nameof(Databases));
_databases.Add(node);
DidChangeValue(nameof(Databases));
}
