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    copied!<p>Have come across an <a href="http://mikehadlow.blogspot.com/2010/01/10-advanced-windsor-tricks-1.html" rel="nofollow">article</a> on Mike Hadlow's blog that uses a delegate registered with Windsor to return one of a number of named type registrations...</p> <p>So basically the Windsor registration might look something like this...</p> <pre><code> container .Register( Component.For&lt;IReportFormatter&gt;().ImplementedBy&lt;ReportFormatterWord2003&gt;().Named("word2003"), Component.For&lt;IReportFormatter&gt;().ImplementedBy&lt;ReportFormatterWord2007&gt;().Named("word2007"), Component.For&lt;IReportFormatter&gt;().ImplementedBy&lt;ReportFormatterPdf&gt;().Named("pdf"), Component.For&lt;Func&lt;string, IReportFormatter&gt;&gt;().Instance(container.Resolve&lt;IReportFormatter&gt;), Component.For&lt;Foo&gt;()); </code></pre> <p>and the Foo constructor would take a parameter of the delegate type</p> <pre><code>Foo(Func&lt;string, IReportFormatter&gt; reportFormatterFactory) </code></pre> <p>now when Windsor resolves Foo, reportFormatterFactory is not resolved to an implementation of IReportFormatter instead it simply holds a reference to the container.Resolve method...</p> <pre><code>container.Resolve&lt;IReportFormatter&gt;(string) </code></pre> <p>that can later be used to get the correct IReportFormatter by calling...</p> <pre><code>reportFormatterFactory("word2007"); </code></pre> <p>Perhaps not as easy to understand as registering a factory but does away with the need for the factory class.</p>
 

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