I read on this blog (http://www.aaron-powell.com/umbraco-4-and-razor ) that you can loop though specific types of chidlren like so:

<div class="news-lissting">
        @foreach(var page in Model.articles) {
                <div class="news-item">
                        <h2><a href="@page.Url" title="@page.Name">@page.Name</a></h2>
                        <h3>Published: @page.articleDate.ToString("dd MMM yyyy")</h3>
                        <p>@page.description<p>
                </div>
        }
</div>

In this example my Model has children of the type article (that's the alias of the DocType) and I'm requesting them all (hence the pluralization).

I am trying to d the same thing as their example here:

<div class="slideshow">
  @foreach(var slideshow in Model.slideshows) {
    <p>@slideshow.Name</p>
  }
</div>

where I have a Document type with alias "slideshow" but it is throwing the error:

"Microsoft.CSharp.RuntimeBinder.RuntimeBinderException: 'umbraco.MacroEngines.DynamicNode' does not contain a definition for 'slideshows' at CallSite.Target(Closure , CallSite , Object ) at....."

Any ideas what I am doing wrong?