Tree structure .NET4

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Is anybody aware of generic tree for c# that has all of net4 goodies and is stable,fast snd tested. or some for java (maybe I could port it).(probably I'll just get use a google sanswer , but ...) Thanks in advance.

Posted 30-May-11 10:33am

apaka

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Monjurul Habib 30-May-11 17:24pm

your question is not clear.

3 solutions

Solution 3

Just a followup on SAKryukovs' answer, how about:

public class TreeNode< T >
{
  public class ChildList : BindingList< TreeNode< T > >
  {}
  
  private ChildList children;
  private T data;

  public TreeNode()
  {
    children = new ChildList();
  }
  
  public TreeNode(T data)
    : this()
  {
    this.data = data;
  }
    
  public T Data
  {
    get
    {
      return data;
    }
    set
    {
      data = value;
    }
  } 

  public ChildList Children
  {
    get
    {
      return children;
    }
  } 

}

Best regards
Espen Harlinn

Posted 30-May-11 12:53pm

Espen Harlinn

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Sergey Alexandrovich Kryukov 30-May-11 22:10pm

Very similar variant, my 5. (Explicit Data getter/setter only needed for C#.v.2.0.)
--SA

Espen Harlinn 31-May-11 5:23am

Thanks SAKryukov, it would be logical to add change notification on the setter - writing it like this was a small hint :)

Solution 2

http://www.google.com/#hl=en&sugexp=ldymls&xhr=t&q=generic+tree+c+sharp&cp=14&pq=generic%20c%23%20&pf=p&sclient=psy&source=hp&aq=0v&aqi=&aql=&oq=generic++tree+C%23+&pbx=1&bav=on.2,or.r_gc.r_pw.&fp=f99e8c741a251b45&biw=1024&bih=558[^]

Posted 30-May-11 11:24am

Monjurul Habib

Comments

Sergey Alexandrovich Kryukov 30-May-11 17:26pm

That is an approach, too, a 5. :-)
--SA

Monjurul Habib 30-May-11 17:27pm

Thank you.

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Sergey Alexandrovich Kryukov · Accepted Answer · 2011-05-30T11:21:00

You don't need a data special structure for the tree. Having such data type in a standard library would be absolutely redundant, because a tree is just a list of some elements which has a "children" member of the same type.

Here is the simplest example:

C#

using Tree = System.Collections.Generic.List<TreeNode>;

class TreeNodeData { /*...*/ }

class TreeNode {
    public TreeNodeData Data { get; set; }
    public Tree Children { get { return fChildren; } }
    public void AddChild(TreeNode child) { //lazily
        if (fChildren == null)
            fChildren = new Tree();
        fChildren.Add(child);
    } //AddChild

    //remove, delete by index, access by index, etc.

    // must not be constructed here, to avoid infinite recursion;
    // lazy construction required, see above
    Tree fChildren;
} //TreeNode

//...

MyTree tree = new Tree();
tree.Data = //...
tree.AddChild(new Tree());
//...

Got an idea?

—SA

Tree structure .NET4

3 solutions

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Solution 1

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