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POASP.NET MVC Display Template for strings is used for integers
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  1. POASP.NET MVC Display Template for strings is used for integers
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    copied!<p>I recently hit an issue with ASP.NET MVC display templates. Say this is my model:</p> <pre><code>public class Model { public int ID { get; set; } public string Name { get; set; } } </code></pre> <p>this is the controller:</p> <pre><code>public class HomeController : Controller { public ActionResult Index() { return View(new Model()); } } </code></pre> <p>and this is my view:</p> <pre><code>&lt;%@ Page Language="C#" Inherits="System.Web.Mvc.ViewPage&lt;DisplayTemplateWoes.Models.Model&gt;" %&gt; &lt;!DOCTYPE html&gt; &lt;html&gt; &lt;head runat="server"&gt; &lt;title&gt;Index&lt;/title&gt; &lt;/head&gt; &lt;body&gt; &lt;div&gt; &lt;%: Html.DisplayForModel() %&gt; &lt;/div&gt; &lt;/body&gt; &lt;/html&gt; </code></pre> <p>If I need for some reason a display template for all strings I will create a String.ascx partial view like this:</p> <pre><code>&lt;%@ Control Language="C#" Inherits="System.Web.Mvc.ViewUserControl&lt;string&gt;" %&gt; &lt;%: Model %&gt; (&lt;%: Model.Length %&gt;) </code></pre> <p>And here is the problem - at runtime the following exception is thrown: <em>"The model item passed into the dictionary is of type 'System.Int32', but this dictionary requires a model item of type 'System.String'"</em></p> <p>It seems that String.ascx is used for both the integer and string property of the Model class. I expected it to be used only for the string property - after all it is named String.ascx not Object.ascx or Int32.ascx. </p> <p>Is this by design? If yes - is it documented somewhere? If not - can it be considered a bug?</p>
 

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