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Asked: 2026-05-11T22:27:45+00:00

By adding a custom handler to the SiteMapResolve event, I can update sitemap url’s

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By adding a custom handler to the SiteMapResolve event, I can update sitemap url’s on the fly, by some logic that I define.

This is ok for SiteMapPath controls, that appear to use this SiteMapResolve functionality… however I want to achieve a similar result for an asp.net Menu control that uses a SiteMapDataSource. Altering nodes with the SiteMapResolve handler doesn’t have any effect.

Could anyone point me in the right direction?
cheers 😀

edit:sourcecode
I’ve removed everything unnecessary and am left with the following – I must be misunderstanding something to do with the structure of the menuItemCollecton but it’s always empty.

web.sitemap


<?xml version="1.0" encoding="utf-8" ?>
<siteMap xmlns="http://schemas.microsoft.com/AspNet/SiteMap-File-1.0" >
<siteMapNode url="default.aspx" title="Homepage"  description="Home">
    <siteMapNode url="secondpage.aspx" title="Page 2" />
</siteMapNode>
</siteMap>

default.aspx

<%@ Page Language="VB" AutoEventWireup="false" CodeFile="Default.aspx.vb" Inherits="_Default" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title></title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <asp:Menu runat=server ID=menu DataSourceid=dsSiteMap />
        <asp:SiteMapDataSource ID="dsSiteMap" runat="server" />
        <asp:Label runat=server id=lbMenuCount />
    </div>
    </form>
</body>
</html>

default.aspx.vb 



Partial Class _Default Inherits System.Web.UI.Page
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load

    lbMenuCount.text = menu.Items.Count
End Sub
End Class

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1 Answer

  1. Editorial Team

    Thank you for your pointers Muhammad, but I think I’ve cracked the problem.

    I guess the menuItemCollection only looks at statically-defined items (i.e. within the code of the menu) wheras I’m linking to an XML datasource – so Muhammad’s solution doesn’t work

    I have solved the problem by placing my code into the menu_MenuItemDataBound event – and am getting the results I want.

    Thanks for all the help!

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