//initilaize Items
public List <Item> InitializeItems(string path)
{
ItemProvider itemProvider = new ItemProvider();
var items = itemProvider.GetItems(path);
return(items);
}
public void NextImage(TreeView ItemTreeView, string path)
{
List <Item> items = new List <Item>();
ItemProvider itemProvider = new ItemProvider();
items = itemProvider.GetItems(path);
int index = ItemTreeView.Items.IndexOf(ItemTreeView.SelectedItem);
index++;
if (items.Count > 0)
{
ItemTreeView.SelectItem(items[index]);
}
}