Show/Hide SiteMap Menu/Repeater on MasterPage - asp.net

Question

Master Page:
<ul>
<li class="first"><asp:HyperLink runat="server" ID="lnkHome"
NavigateUrl="~/Forms/Default.aspx">Home</asp:HyperLink></li>
<asp:Repeater runat="server" ID="Repeater1" DataSourceID="SiteMapDataSource1"
EnableViewState="False">
<ItemTemplate>
<li>
<asp:HyperLink ID="HyperLink1" runat="server"
NavigateUrl='<%# Eval("Url") %>'><%# Eval("Title") %>
</asp:HyperLink>
</li>
</ItemTemplate>
</asp:Repeater>
</ul>
Web.SiteMap
<?xml version="1.0" encoding="utf-8" ?>
<siteMap xmlns="http://schemas.microsoft.com/AspNet/SiteMap-File-1.0" >
<siteMapNode id="SiteHome" url="~/Forms/Default.aspx" title="Home"
description="Default">
<siteMapNode id="SiteAbout" url="~/Forms/Aboutus.aspx" title="About us"
description="About Us"/>
<siteMapNode id="SiteNew" url="~/Forms/New.aspx" title="New"
description="My Sample Page"/>
</siteMapNode>
Design:
HOME | About us | My Sample Page
I am new on ASP.Net Webforms and i am creating my first Project.
I am using Repeater to navigate page urls.
On my Master/Page.cs Code Behind I need to Hide
[My Sample Page] based on my Login Account.
something like:
if(UserGroup="Admin")
{
//Show My Sample Page
HOME | About us | My Sample Page
}
else if(UserGroup="User1")
{
//Hide About Us
HOME | About us
}
else
{
// Show Home Only
HOME
}
How to do it in form Load?
Thanks in Regards..

Answer 1

The correct way to do this is define a site map provider in your Web.Config and make sure you set the attribute securityTrimmingEnabled="true".
<siteMap defaultProvider="MySiteMap">
<providers>
<clear/>
<add
name="MySiteMap"
type="System.Web.XmlSiteMapProvider"
securityTrimmingEnabled="true"
siteMapFile="~/Web.SiteMap" />
</providers>
</siteMap>
In your Forms folder create a Web.Config file and include the following
<?xml version="1.0"?>
<configuration>
<system.web>
<authorization>
<allow users="*" />
</authorization>
</system.web>
<location path="New.aspx">
<system.web>
<authorization>
<deny users="?" />
</authorization>
</system.web>
</location>
</configuration>
Now ASP.Net will take care of showing which parts of your site map to which users.
Eg: In this case it will hide your My Sample Page page from un-authenticated users.

Answer 2

Try something like:
<asp:HyperLink ID="HyperLink1" runat="server" NavigateUrl='<%# Eval("Url") %>'
Visible='Eval("Title") = "My Sample Page" ? this.IsAdmin.ToString() : "True"' >
<%# Eval("Title") %>
</asp:HyperLink>