file details in tree view format

string line;
string xmlString = "";

// Read the file line by line.
System.IO.StreamReader file =
   new System.IO.StreamReader("c:\\test.txt");
while((line = file.ReadLine()) != null)
{
   // Build your xmlString here
    // you can use line.Split() to seperate the data
    // Add xml tags and build your xml in the desired format.

}

file.Close();

private void populateTreeview(string xmlString)
        {
                    
                try
                {

                    XmlDocument xDoc = new XmlDocument();
                    xDoc.LoadXml(xmlString);
                    
                    //adding root node
                    TreeView1.Nodes.Clear();
                    TreeView1.Nodes.Add(new
                      TreeNode(xDoc.DocumentElement.Name));
                    TreeNode tNode = new TreeNode();
                    tNode = (TreeNode)TreeView1.Nodes[0];
                    
                    addTreeNode(xDoc.DocumentElement, tNode);
                    
                    TreeView1.ExpandAll();
                }                
                catch (Exception ex) //General exception
                {
                    
                }                
        }
        
        void addTreeNode(XmlNode xmlNode, TreeNode treeNode)
        {
            XmlNode xNode;
            TreeNode tNode;
            XmlNodeList xNodeList;
            if (xmlNode.HasChildNodes) 
            {
                xNodeList = xmlNode.ChildNodes;
                for (int x = 0; x <= xNodeList.Count - 1; x++)
                //Loop through the child nodes
                {
                    xNode = xmlNode.ChildNodes[x];
                    treeNode.ChildNodes.Add(new TreeNode(xNode.Name));
                    tNode = treeNode.ChildNodes[x];
                    addTreeNode(xNode, tNode);
                }
            }
            else 
                treeNode.Text = xmlNode.OuterXml.Trim();
        }