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POASP.Net MVC Hide/Show Menu Items Based On Security
 

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    <p>I'm working on an ASP.Net MVC 3 site. The _Layout master view contains a menu and I want to hide some of the items in the menu based on if you are logged in and what roles you are in.</p> <p>This currently works using code like this</p> <pre><code>@if (HttpContext.Current.User.Identity.IsAuthenticated) { &lt;li id="MyLearningTab"&gt;@Html.ActionLink("My Learning", "MyLearning", "Learning")&lt;/li&gt; if (HttpContext.Current.User.IsInRole("Reporters")) { &lt;li id="ReportTab"&gt;@Html.ActionLink("Reports", "Index", "Reports")&lt;/li&gt; } if (HttpContext.Current.User.IsInRole("Administrators")) { &lt;li id="DashboardTab"&gt;@Html.ActionLink("Dashboard", "Dashboard", "Admin")&lt;/li&gt; &lt;li id="AdminTab"&gt;@Html.ActionLink("Admin", "Index", "Admin")&lt;/li&gt; } } </code></pre> <p>I'd like to refactor this in to something more readable and came up with something like this</p> <pre><code>@if ((bool)ViewData["MenuMyLearning"]){&lt;li id="MyLearningTab"&gt;@Html.ActionLink("My Learning", "MyLearning", "Learning")&lt;/li&gt; } @if((bool)ViewData["MenuReports"]){&lt;li id="ReportTab"&gt;@Html.ActionLink("Reports", "Index", "Reports")&lt;/li&gt;} @if ((bool)ViewData["MenuDashboard"]){&lt;li id="DashboardTab"&gt;@Html.ActionLink("Dashboard", "Dashboard", "Admin")&lt;/li&gt;} @if ((bool)ViewData["MenuAdmin"]){&lt;li id="AdminTab"&gt;@Html.ActionLink("Admin", "Index", "Admin")&lt;/li&gt;} </code></pre> <p>I originally added the following to my base controller constructor thinking I could setup the ViewData for these properties there</p> <pre><code>ViewData["MenuDashboard"] = User != null &amp;&amp; User.Identity.IsAuthenticated &amp;&amp; User.IsInRole("Administrators"); ViewData["MenuAdmin"] = User != null &amp;&amp; User.Identity.IsAuthenticated &amp;&amp; User.IsInRole("Administrators"); ViewData["MenuReports"] = User != null &amp;&amp; User.Identity.IsAuthenticated &amp;&amp; User.IsInRole("Reportors"); ViewData["MenuMyLearning"] = User != null &amp;&amp; User.Identity.IsAuthenticated; </code></pre> <p>However it turns out the User object is null at this point in the lifecycle. I've also tried creating a custom global filter but the ViewData is then not accessable.</p> <p>What is the recommended way of doing something like this? Should I just leave it how it was at first with all the HttpContext code in the view?</p>
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