Comments by Vinod Satapara (Top 9 by date)

please be more specific. Which control are you using? RadiobuttonList, Radiobutton?
Can you provide your code sample here?

Hi Rupali,

my code works fine in all browsers. I have tested it with the firefox. Also it is not possible without the javascript.

I am modifying your code

<asp:Content ID="Content1" ContentPlaceHolderID="CPHLeftNav" runat="server">
<asp:Panel ID="pnl_leftNav" runat="server" Visible="false" Style="font: 11px/16px Arial,sans-serif;"
Heigh="100%">
<asp:TreeView ID="TreeView2" runat="server" Style="margin-left: 0px; text-align: left;
margin-left: 0px; padding-left: 0px" Font-Bold="True" ExpandDepth="0" ForeColor="Indigo"
Height="100%" Width="100%" OnSelectedNodeChanged="TreeView2_SelectedNodeChanged"
PopulateNodesFromClient="true" ShowExpandCollapse="true" ImageSet="Arrows"
Target="ifrm1" >
<ParentNodeStyle Font-Bold="true" ForeColor="Firebrick" />

<SelectedNodeStyle Font-Underline="True" ForeColor="#5555DD" HorizontalPadding="0px"
VerticalPadding="0px" />

<asp:TreeNode Text="SomeText" ToolTip="BillEntryForm" Value="SomeText" Target="iframe">








<asp:Content ID="Content2" ContentPlaceHolderID="CPHRightContent" runat="server">
<iframe id="ifrm1" runat="server" width="10%" height="10%"></iframe>

<script language="javascript">
function nav(url)
{
document.getElementById('<%=ifrm1.ClientID%>').src = url;
}
</script>


Protected Sub TreeView2_SelectedNodeChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles TreeView2.SelectedNodeChanged
ifrm1.Attributes.Add("src", TreeView2.SelectedNode.Value.ToString())
End Sub

-------------------------------------------

Private Sub PopulateRootLevel()
''Retriving Data from database
PopulateNodes(dt, TreeView2.Nodes)
End Sub

Private Sub PopulateNodes(ByVal dt As DataTable, _ByVal nodes As TreeNodeCollection)
For Each dr As DataRow In dt.Rows
Dim tn As New TreeNode()
tn.Value = dr("id").ToString()
tn.Text = dr("NText").ToString()
tn.ToolTip = dr("NTooltip").ToString()
tn.NavigateUrl = "javascript:nav('"+dr("NNavigateUrl").ToString()+"')";

'''Some code
nodes.Add(tn)
''''
tn.PopulateOnDemand = (CInt(dr("childnodecount")) > 0)
Next
End Sub

Private Sub PopulateSubLevel(ByVal parentid As Integer, ByVal parentNode As TreeNode)
''' Code for Retrieving Data From database
PopulateNodes(dt, parentNode.ChildNodes)
End Sub

Protected Sub TreeView2_TreeNodePopulate(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.TreeNodeEventArgs) Handles TreeView2.TreeNodePopulate
PopulateSubLevel(CInt(e.Node.Value), e.Node)
End Sub