当需要动态调整多维清单时，我将使用什么？

Question

I have a list that I want to function as a dynamically expanding tree-view, but if I am to have multiple lists inside of a list I need to declare that in the initial list's definition. What am I missing to accomplish this and is there something better to use to accomplish my goal?

For the sake of context: I am trying to populate it like a tree view so that I may replicate the registry within my application.

Answer 1

Use the correct type for your scenario.

In your case, this is a class TreeNode like so:

public class TreeNode
{
    private readonly List<TreeNode> _children = new List<TreeNode>();

    public TreeNode(string name, params TreeNode[] children)
    {
        Name = name;
        _children.AddRange(children);
    }

    public List<TreeNode> Children { get { return _children; } }
    public string Name { get; set; }
}

Assume the following tree:

Root
+ Child1
  + Child1a
  + Child1b
+ Child2
  + Child2a
    + Child2aA
    + Child2aB
  + Child2b

You would create it like so:

var root = new TreeNode("Root",
                        new TreeNode("Child1",
                                     new TreeNode("Child1a"),
                                     new TreeNode("Child1b")),
                        new TreeNode("Child2",
                                     new TreeNode("Child2a",
                                                  new TreeNode("Child2aA"),
                                                  new TreeNode("Child2aB")),
                                     new TreeNode("Child2b")));