C# UWP XML Serialization TreeView

Question

i have a simple Treeview for UWP (It is a external Control from Microsoft because UWP does not include a Treeview). I want to save Serialized the Tree to XML. I tried following Code

 public static async void SaveTree(TreeView tree, string filename)
    {
        StorageFolder folder = await StorageFolder.GetFolderFromPathAsync(@"C:\Users\IT\source\repos\App3\App3");
        StorageFile file = await folder.GetFileAsync("test.xml");
        using (IRandomAccessStream writeStream = await file.OpenAsync(FileAccessMode.ReadWrite))
        {
               Stream s = writeStream.AsStream();
                BinaryFormatter bf = new BinaryFormatter();
            bf.Serialize(s, tree.RootNode.Cast<TreeNode>().ToList());
        }
    }

But it gives always a unknown error. Maybe is this a wrong function for UWP?
Anyone know how to solve it ?

Answer 1

抱歉，在UWP中无法做到这一点。