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POGeneric return types from abstract/virtual methods
 

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    <p>I have a relationship between two base classes:</p> <pre><code>public abstract class RecruiterBase&lt;T&gt; { // Properties declare here // Constructors declared here public abstract IQueryable&lt;T&gt; GetCandidates(); } public abstract class CandidateBase&lt;T&gt; { // Properties declare here // Constructors declared here } </code></pre> <p>And their concrete implementations as such:</p> <pre><code>public class CandidateA : CandidateBase&lt;CandidateA&gt; { // Constructors declared here } public class RecruiterA : RecruiterBase&lt;RecruiterA&gt; { // Constructors declared here // ----HERE IS WHERE I AM BREAKING DOWN---- public override IQueryable&lt;CandidateA&gt; GetCandidates() { return from c in db.Candidates where c.RecruiterId == this.RecruiterId select new CandidateA { CandidateId = c.CandidateId, CandidateName = c.CandidateName, RecruiterId = c.RecruiterId }; } } </code></pre> <p>Per MSDN documentation <a href="http://msdn.microsoft.com/en-us/library/ms379564%28VS.80%29.aspx" rel="nofollow noreferrer">http://msdn.microsoft.com/en-us/library/ms379564%28VS.80%29.aspx</a> (about half way down) and a similiar (but not identical) questoin on SO <a href="https://stackoverflow.com/questions/675857/c-specifying-the-return-type-of-an-abstract-method-from-a-base-class-according">Specifying the return type of an abstract method from a Base Class according to a Sub Class</a></p> <p>I can make use of my concreate implementation for the return type of my overridden method GetCandidates but that is not what I want, I want to make use of the concrete implementation of a different abstract class. This is a parent/child database relationship. Is what I am trying to achieve possible? I currently get a compile time error that my GetCandidates return type does not match.</p> <p>Thanks</p>
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