ASPxTreeList - How to iterate through selected nodes

Hi,
This is regarding the ASPXTrrList view. I would like to get the selected node value. But I need to fetch the ID instead of the Value.
Herewith I have attached a sample image for my TreeList. Whenever the user click on the node then we need to fetch the selected node value. (i.e same like drop down selection)
FYI…
Here is the FE code what we are using for our application.
Dim treeListAnalysis As ASPxTreeList = CType(cboTreeView.FindControl("tvUserTree"), ASPxTreeList)
                Dim rootNode As TreeListNode = Nothing
                Dim taskType As String = Nothing
                Dim rootValue As Integer = 0
                userList = TaskListManager.GetTreeListView()
                configXML = CType(Profile.DocTas.Web.Common.GetCache(), XmlDocument)
                nodeList = configXML.SelectNodes("XXX/YYYY/NODE")
                For loopCounter = 0 To nodeList.Count - 1
                    For innerLoopCounter = 0 To nodeList(loopCounter).ChildNodes.Count - 1
                        rootNode = treeListAnalysis.AppendNode(rootValue)
                        rootNode.SetValue("name", nodeList(loopCounter).ChildNodes(innerLoopCounter).ChildNodes(0).InnerXml)
                        rootValue = rootValue + 1
                        If nodeList(loopCounter).ChildNodes(innerLoopCounter).ChildNodes(0).InnerXml = "Other Departments Task" Then
                            taskType = "Department"
                            Dim userSelection = From value In userList Where taskType.Equals(value.UserType)
                            For Each result In userSelection
                                treeListAnalysis.AppendNode(rootValue, rootNode).SetValue("name", result.UserName)
                                rootValue = rootValue + 1
                            Next
                        End If
                        If nodeList(loopCounter).ChildNodes(innerLoopCounter).ChildNodes(0).InnerXml = "Other Teams Task" Then
                            taskType = "Team"
                            Dim userSelection = From value In userList Where taskType.Equals(value.UserType)
                            For Each result In userSelection
                                treeListAnalysis.AppendNode(rootValue, rootNode).SetValue("name", result.UserName)
                                rootValue = rootValue + 1
                            Next
                        End If
                    Next
                Next
I am awaiting for your reply.
Thanks,
Vinoth Kumar R