private void initializeCollectionsDropdown()
{
var items = new CollectionRepository().query().forUser(Auth.getUser()).get();
if (items.Count < 1)
{
throw new ValidationException("You cannot create files without existing collection.");
}
foreach (var i in items)
{
collectionsDropdown.AddItem(i.Name);
}
var index = -1;
if (!item.isNull())
{
index = items.FindIndex(i => i.Name == (item.Collection?.Name ?? ""));
}
else if (item.isNull() && items.Count > 0)
{
index = 0;
}
collectionsDropdown.selectedIndex = index;
}