Trouble with TreeView

[samirtripathy]

I am loading data from a XML file and populating a TreeVew. I store
certain values in the tags of the treevew nodes using the following
code

--------------------
Dim servernode As New System.Windows.Forms.TreeNode()

servernode.Text = NodtTemplate.Attributes(0).InnerText
servernode.Tag = NodtTemplate.FirstChild.InnerXml
--------------------

When user double clicks on a node, I show the value from tag to the
user. It works perfectly first time. But when the XML file is modified
and reloaded in the TreeView it does not show the modified value when I
double click on the node. To see the modified value I have to exit the
application and re-start it again.

I verified just before assigning the modified values to the tag of the
node but when I double click on the node is show the value it loaded
for the first time.

Is there any cacheing there from TreeViews. Can this be disabled?

My code in Mouse Down event
-------------------------------
tvMDI.SelectedNode = tvMDI.GetNodeAt(e.X, e.Y)
-------------------------------

My code in double click event
-------------------------------
MsgBox(tvMDI.SelectedNode.Tag)
------------------------------

Thanks in advance.

Samir