Checking Node on server side does not reflect in tree "title"

[David]

When i check nodes in a tree (by mouse) selected values appended in title. Which is good.

However, on server side node is getting checked, but title stays empty.

Here is my code:

  rddtRegion.DataSource = dtContractCounties
  rddtRegion.DataBind()

  For Each dr As DataRow In dtSelectedCounties.Rows
                Dim nodeValue As String = dr("CountyID")
                Dim node_region As RadTreeNode = rddtRegion.EmbeddedTree.FindNodeByValue(nodeValue)
                node_region.Checked = True
  Next

Please advice