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PODynamic Typing a Generic Class
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  1. PODynamic Typing a Generic Class
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    copied!<p>I have an object that's being automatically serialized by the WebAPI, but I wanted to wrap it to provide context to my data. An example would be:</p> <pre><code>public class SecureModel&lt;T&gt; { public string Info { get; set; } public T Data { get; set; } } </code></pre> <p>This serializes/deserializes no problem with my JSON requests and all is well. However, I want to verify some of that Info before I allow the request to finish executing, so I've added an ActionFilter where I'm retrieving parameters of my POST.</p> <pre><code>public class MyAuth : System.Web.Http.Filters.ActionFilterAttribute { public override void OnActionExecuting(HttpActionContext actionContext) { var arg = actionContext.ActionArguments.FirstOrDefault().Value; // arg: get the Info? // if the info isn't correct, return a specific Response. } } </code></pre> <p>When I examine the argument, it's exactly what I need, however I can't figure out how to weakly type it to SecureModel without specifying the <em>actual</em> generic type. I feel like I should be able to case this to SecureModel&lt;object&gt; and properly access the root, however it does not allow that. So far, I can only get the data I need using:</p> <pre><code>var notStrongEnough = arg.GetType().GetProperty("Info"); </code></pre> <p>However, I'd prefer not to use Reflection for this and I am having a hard time moving forward without an answer. My alternative in this situation would be to change Data to a string and serialize/deserialize the JSON object manually, but that defeats some of the purpose of using Web API over MVC3.</p> <p><strong>Note:</strong> Changing the design to have SecureModel as the base class adds challenges to some of the hashing I am performing on the data, so I'd prefer to not go down that path either.</p> <p>Thanks!</p> <p><strong>Edit:</strong> Misphrased title.</p>
 

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