Treeview selected nodes with IE back button

[vairam]

Hi

 

for (int i = 0; i < RadTreeView1.Nodes.Count; i++)

 

{

 

        bool bchk= RadTreeView1.Nodes[i].Checked;

 

 

}
Response.Redirect("WebForm1.aspx");

 

 

I have treeview control with checkbox.
I selected some nodes and click on save button at the time i can able to get all the checked nodes.But when i come back to the same page using click on browser back button at the time i can not get the checked node in button click event. all the nodes are returning false only .But in the UI its seems to be selected only.what i needs to do?

I am using IE 7.0 and
Telerik .Web.UI 2008.1.415.20

Regards
Vairam