title: how to databind to DevExpress TreeList
body: <p>i want to databind hierarchical data from plain data to the ASPxTreeList, i checked the documentation online for the the databinding, this is the code i found:</p>
  
  <pre><code> Imports Microsoft.VisualBasic
   Imports System
  
   Partial Public Class Data_Hierarchical
       Inherits BasePage
       Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs)
           If (Not IsPostBack) Then
               DataBind()
               treeList.ExpandToLevel(1)
           End If
       End Sub
   End Class
  </code></pre>
  
  <p>but how DataBind() is implemented?</p>