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PONinject binding based on string
 

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    <p>I have a web service that's going to do things with some data being passed in (specifically InfoPath xml from a SharePoint doc library). I'm currently using Ninject to handle what form data "strategy" to load. Here's some code (question follows):</p> <h1>Web Service (Entry Point)</h1> <pre><code>namespace Web.Services { public bool AddForm(XmlDocument form, string formName) { IKernel kernel = new StandardKernel(new FormsModule()); var ctx = kernel.Get&lt;IPFormDataContext&gt;(formName); return ctx.DoWork(form); } } </code></pre> <h1>Ninject Related Things</h1> <pre><code>namespace Core.Modules { public class FormsModule : NinjectModule { public override void Load() { Bind&lt;IPFormDataContext&gt;().ToSelf().Named("FormA"); Bind&lt;IPFormDataContext&gt;().ToSelf().Named("FormB"); // Snip Bind&lt;IPFormDataStrategy&gt;().To&lt;FormAStratgey&gt;() .WhenParentNamed("FormA"); Bind&lt;IPFormDataStrategy&gt;().To&lt;FormBStrategy&gt;() .WhenParentNamed("FormB"); // Snip } } } </code></pre> <h1>Pattern Related Things</h1> <pre><code>namespace Core.Forms { public class IPFormDataContext { private IPFormDataStrategy _ipFormDataStrategy; public IPFormDataContext(IPFormDataStrategy strategy) { _ipFormDataStrategy = strategy; } public bool DoWork(XmlDocument form) { return _ipFormDataStrategy.DoWork(form); } } public abstract class IPFormDataStrategy { public abstract bool DoWork(XmlDocument form); } } namespace Core.Forms.FormStrategies { class FormAStrategy : IPFormDataStrategy { public override bool DoWork(XmlDocument form) { // Deserialize form using (xsd.exe generated) FormAData // and perform some operation on the resulting data. return resultOfWork; } } } </code></pre> <p>FormBStrategy is much the same, as is the 7 other strategies I didn't list. I'm trying to find a way to pass in a form xml to the webservice and call the correct form deserialization based on the form type that's coming in.</p> <p>The code above "works"; but it feels like I'm doing some sort of service location in Ninject, which from what I'm reading is a <strong>bad thing</strong>. But I can't think of a proper way to accomplish this. I'm not dead set on using Ninject, or any IOC/DI framework for that matter.</p> <p>Is what I'm doing ... wrong? Could I get pointed in the right direction?</p>
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    1. COThis seems like a good place for a generic: could you do something like `IPFormDataContext<T> where T : IPFormDataStrategy` to clean it up? I'm not really that familiar with ninject.
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