How to display List in ASP.NET TreeView Control as binary tree

I want to create Binary tree in TreeView Control from List
Could not find any Logic.
My list as:

List members = getAllMembers();

I tried:

TreeView1.Node.Add(members.First());  //Root Node Add
//TreeNode LeftNode,RightNode;

Now i am getting how to move futher.

//I know the logic for Left child is: 
if (isExists( members[currentNodeIndex * 2])
 LeftNode.Nodes.Add(members[currentNodeIndex * 2]) 

//for Right child
if (isExists( members[(currentNodeIndex * 2) + 1])
 LeftNode.Nodes.Add(members[currentNodeIndex * 2])

I have record of more than 2000 members. I want to display all in hierarichal order in treeview. Could not find proper logic. Please help.

Tags: C#, ASP.NET