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POhow to use a delegate to get by name a CompiledQuery
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  1. POhow to use a delegate to get by name a CompiledQuery
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    copied!<p>I'm trying to find and run a CompiledQuery given the name. How do I access the compiled query by name and how do I then invoke the delegate?</p> <p>Here's as far as I can get - I get the error 'Error binding to target method'</p> <pre><code>public class ActivityRepository { private readonly ActivityDataContext _db; public ActivityRepository() { _db = new ActivityDataContext(); } public static Func&lt;ActivityDataContext, int, IQueryable&lt;ProjectObject&gt;&gt; GetCompiledLatestProjects = CompiledQuery.Compile ((ActivityDataContext db, int projectId) =&gt; from c in db.projectObjects where c.projectId == projectId select c); public static Func&lt;ActivityDataContext, Guid, IQueryable&lt;Report&gt;&gt; GetCompiledReports = CompiledQuery.Compile ((ActivityDataContext db, Guid itemId) =&gt; from c in db.Reports where c.reportObjectId == itemId select c); </code></pre> <p>// Other compiled queries ommitted, but the results are IQueryable objects that implement a common interface IProjectObject</p> <pre><code> delegate IQueryable&lt;IProjectObject&gt; MyDelegate(); static MyDelegate GetByName(object target, string methodName) { return (MyDelegate)Delegate.CreateDelegate (typeof(MyDelegate), target, methodName); } public IList&lt;Results&gt; GetResults(string reportName) { IQueryable&lt;ProjectObject&gt; projectItems = GetLatestProjectObjects(projectId, quantity); foreach (projectObject o in projectItems) { MyDelegate del = GetByName(this, reportName); var dbReport = (IProjectObject) GetCompiledReports(_db, o.itemId).FirstOrDefault(); // add results to List and return } } } </code></pre>
 

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