Hi friends,
I created a xml file from datatable can u tell me how can i bind this xml file to ext.net treepanel..
here is the code to generate xml from datatable (i took this code from other website and works for asp.net treeview control.)
 // Create the DataTable and columns
        DataTable ItemTable = new DataTable("MyTable");
        ItemTable.Columns.Add("ID"      , typeof(int   ));
        ItemTable.Columns.Add("ParentID", typeof(int   ));
        ItemTable.Columns.Add("Name"    , typeof(String));
        ItemTable.Columns.Add("Level", typeof(int));
        // add some test data
        ItemTable.Rows.Add(new object[] { 0,-1, "Bill Gates",1    });
        ItemTable.Rows.Add(new object[] { 1, 0, "Steve Ballmer",2 });
        ItemTable.Rows.Add(new object[] { 3, 1, "Mary Smith",3    });
        ItemTable.Rows.Add(new object[] { 2, 0, "Paul Allen",2    });
        ItemTable.Rows.Add(new object[] { 4, 2, "Ahmed Jones",3   });
        ItemTable.Rows.Add(new object[] { 5, 2, "Wing Lee",3      });
        // Use the Select method to sort the rows by ParentID
        DataRow[] SortedRows;SortedRows = ItemTable.Select("", "ParentID");
        // create an XmlDocument (with an XML declaration)
        XmlDocument XDoc = new XmlDocument();
        XmlDeclaration XDec = XDoc.CreateXmlDeclaration("1.0", null, null);
        // iterate through the sorted data
        // and build the XML document
        foreach (DataRow Row in SortedRows)
            // create an element node to insert 
            // note: Element names may not have spaces so use ID   
            // note: Element names may not start with a digit so add underscore    
            XmlElement NewNode = XDoc.CreateElement("_" + Row["ID"].ToString());
            NewNode.SetAttribute("ID"      , Row["ID"].ToString()); 
            NewNode.SetAttribute("ParentID", Row["ParentID"].ToString());
            NewNode.SetAttribute("FullName", Row["Name"].ToString());
            NewNode.SetAttribute("Level", Row["Level"].ToString());
            // special case for top level node    
            if ((int)Row["ParentID"] == -1)
            // root node    
            else    {
                // use XPath to find the parent node in the tree
                String SearchString;  
                SearchString = String.Format("//*[@ID=\"{0}\"] ", Row["ParentID"].ToString());
                XmlNode Parent = XDoc.SelectSingleNode(SearchString);
                if (Parent != null)
                else {
                    // Handle Error: Employee with no boss    
        // we cannot bind the TreeView directly to an XmlDocument
        // so we must create an XmlDataSource and assign the XML text
        XmlDataSource XDdataSource = new XmlDataSource();
        XDdataSource.ID = DateTime.Now.Ticks.ToString(); 
        // unique ID is required
        XDdataSource.Data = XDoc.OuterXml;
the ouput of the above code will look like this...
<?xml version="1.0"?>
<_0 ID="0" ParentID="-1" FullName="Bill Gates" Level="1">

	<_1 ID="1" ParentID="0" FullName="Steve Ballmer" Level="2">
		<_3 ID="3" ParentID="1" FullName="Mary Smith"  Level="3"/>
	<_2 ID="2" ParentID="0" FullName="Paul Allen" Level="2">
		<_4 ID="4" ParentID="2" FullName="Ahmed Jones"  Level="3"/>
		<_5 ID="5" ParentID="2" FullName="Wing Lee"  Level="3"/>
please help me ..how can i bind this data to ext tree control