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POImplementing List.cshtml for Projection throws 'Orchard.ContentManagement.ContentItem' does not contain a definition for 'TagsPart'
 

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  1. POImplementing List.cshtml for Projection throws 'Orchard.ContentManagement.ContentItem' does not contain a definition for 'TagsPart'
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    <p>I have implemented List.cshtml to provide a custom display for an image gallery. This is the first time I have tried to override a Projection with a Template and at first it seemed to work fine. Then I noticed that when I try to access the Projection on the backend Orchard 1.7 falls over with:</p> <blockquote> <p>RuntimeBinderException 'Orchard.ContentManagement.ContentItem' does not contain a definition for 'TagsPart'</p> </blockquote> <p>Here is some code from the template List.cshtml:</p> <pre><code>List&lt;TagRecord&gt; uniqueTags = new List&lt;TagRecord&gt;(); List&lt;dynamic&gt; items = Model.Items; if (items != null &amp;&amp; items.Any()) { foreach (var item in items) { if (item != null &amp;&amp; item.ContentItem != null) { TagsPart part = item.ContentItem.TagsPart; if (part != null &amp;&amp; part.CurrentTags != null) { foreach (var t in part.CurrentTags) { if (!uniqueTags.Contains(t)) { uniqueTags.Add(t); } } } } } </code></pre> <p>I am ignorant on a couple of points, which I suspect may be causing the error:</p> <ol> <li><p>How to specify a template for a Projection (more specific than 'List.cshtml'). Can I use Placement.info? How?</p></li> <li><p>How should I test for the presence of a specific part in the ContentItem? Just assigning <code>TagsPart part = item.ContentItem.TagsPart;</code> throws the exception above.</p></li> </ol> <p><strong>UPDATE:</strong> I had implemented this as a Module; that is, the List.cshtml was in the Views folder of a simple Module. If I move List.cshtml to the Theme then the problem goes away. However, I would still prefer to use a module so that the layout is independent of the theme.</p>
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