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POMVC Image Handler with Url rewrite
 

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  1. POMVC Image Handler with Url rewrite
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    <p>I'm attempting to be able to build a handler which serves back images in a friendly way, e.g. <a href="http://mydomain.com/images/123/myimage.jpg" rel="nofollow">http://mydomain.com/images/123/myimage.jpg</a> or even .../123/myimage</p> <p>I have previous done this before using .NET Forms and an ashx file.</p> <p>I'm now using MVC 4 (Which I am new to) and am attempting to do the same thing. I re-used a lot of my old code and added an ashx file to my project and passed through querystrings to successfully generate my image. However, I just cannot get the Url Rewrite to work!</p> <p>In my old code I used:</p> <pre><code> RouteTable.Routes.MapHttpHandlerRoute("imagestoret", "imagestore/{fileId}", "~/Images/ImageHandler.ashx"); RouteTable.Routes.Add(new Route("imagestore/{fileId}", new PageRouteHandler("~/Images/ImageHandler.ashx"))); </code></pre> <p>Where MapHttpHandlerRoute is a custom class found on the internet containing:</p> <pre><code> public IHttpHandler GetHttpHandler(RequestContext requestContext) { if (!string.IsNullOrEmpty(_virtualPath)) { return (IHttpHandler)System.Web.Compilation.BuildManager.CreateInstanceFromVirtualPath(_virtualPath, typeof(IHttpHandler)); } else { throw new InvalidOperationException("HttpHandlerRoute threw an error because the virtual path to the HttpHandler is null or empty."); } } </code></pre> <p>Since then I have tried converting it into a Controller which worked successfully with a querystring, however, when I tried to add the routing in it still returns a 404 error.</p> <pre><code>routes.MapRoute( "ImageProvider", "imagestore/{fileId}/", new { controller = "File", action = "GetFile", id = UrlParameter.Optional }); </code></pre> <p>I have also tried an ImageRouteHandler from the internet:</p> <pre><code> public class ImageRouteHandler : IRouteHandler { public IHttpHandler GetHttpHandler(RequestContext requestContext) { // Do stuff } } </code></pre> <p>And then adding the following into my RouteConfig.cs:</p> <pre><code> routes.Add("MyImageHandler", new Route("imagex/{fileId}", new ImageRouteHandler()) ); </code></pre> <p>Does anyone know where I'm going wrong?</p> <p>Thanks in advance.</p>
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