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POTwo generic types in a extension method
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  1. POTwo generic types in a extension method
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    copied!<p><strong>Right now my code is code looks something like this: (Simplified!)</strong></p> <pre><code>public static IQueryable&lt;T&gt; ListedProducts&lt;T,V&gt;(this IQueryable&lt;T&gt; collection) where T : ProductCollection&lt;V&gt; where V: Product { return collection.Where(x =&gt; x.Listed == true); } </code></pre> <p>And to use it i have to define both Types like this:</p> <pre><code>SomeCollection.ListedProducts&lt;BikeCollection,BikeProduct&gt;() </code></pre> <hr> <p><strong>This is how i would like it to be:</strong></p> <p>I want to be able to write something lkie this:</p> <pre><code>public static IQueryable&lt;T&gt; ListedProducts&lt;T&lt;V&gt;&gt;(this IQueryable&lt;T&lt;V&gt;&gt; collection) where T : ProductCollection&lt;V&gt; { return collection.Where(x =&gt; x.Listed == true); } </code></pre> <p>Where i only needed to write:</p> <pre><code>SomeCollection.ListedProducts() </code></pre> <p>I think it's possible since "SomeCollection" contains both types for the generic ListedProducts method.</p> <hr> <p>Hope my question is clear enough and there is a solution :)</p> <hr> <p><strong>UPDATE</strong></p> <p>There seem to be many fustrations on how my code is set up, so here are some of the classes (simplified)</p> <p><strong>ProductCollection</strong></p> <pre><code>public class ProductCollection&lt;T&gt; where T : Product { public int Id { get; set; } public string CollectionName { get; set; } public virtual ICollection&lt;T&gt; Products { get; set; } public bool Listed { get; set; } } </code></pre> <p><strong>ProductCollection</strong></p> <pre><code>public class BikeCollection : ProductCollection&lt;BikeProduct&gt; { //Bike specific properties } </code></pre>
 

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