kala-tamin Why am I getting “The directive 'control' is unknown” error in ASP.NET MVC?

Why am I getting “The directive 'control' is unknown” error in ASP.NET MVC?

I'm working on an editor page for a project in ASP.NET MVC. I would like to use a control for both the create page and the edit page so I don't have to duplicate code. I've set up an EditorTemplates folder inside /Views/Shared to hold my templates. And I've placed a .ascx file in there called ArticlePresentation.ascx.

ArticlePresentation.ascx looks like this:

<%@ Control Language="C#" Inherits="System.Web.Mvc.ViewUserControl<genesis.Core.Presentation.ArticlePresentation>" %>  Testing the control 

My Edit.aspx view looks like this:

<%@ Page Title="" Language="C#" MasterPageFile="~/Views/Shared/genesis.Master" Inherits="System.Web.Mvc.ViewPage<genesis.Core.Presentation.ArticlePresentation>" %>  <asp:Content ID="Content1" ContentPlaceHolderID="TitleContent" runat="server">     Edit </asp:Content>  <asp:Content ID="Content2" ContentPlaceHolderID="MainContent" runat="server">      <h2>Edit</h2>     <% using (Html.BeginForm()) {%>         <%: Html.ValidationSummary(true) %>         <%: Html.EditorFor(ArticlePresentation => ArticlePresentation)%>     <% } %>      <div>         <%: Html.ActionLink("Back to List", "Index") %>     </div>  </asp:Content> 

I can build the site without getting any errors, but, when I run the site and browse to the editing page I get this error:

System.Web.HttpParseException was unhandled by user code

 Message=The directive 'control' is unknown.   Source=System.Web   ErrorCode=-2147467259   WebEventCode=0   FileName=C:<path to folder>asp.net mvc\genesis\genesis\Views\Shared\EditorTemplates\ArticlePresentation.aspx   Line=2   VirtualPath=/Views/Shared/EditorTemplates/ArticlePresentation.aspx   StackTrace:        at System.Web.UI.TemplateParser.ParseString(String text, VirtualPath virtualPath, Encoding fileEncoding)        at System.Web.UI.TemplateParser.ParseFile(String physicalPath, VirtualPath virtualPath)        at System.Web.UI.TemplateParser.ParseInternal()        at System.Web.UI.TemplateParser.Parse()        at System.Web.Compilation.BaseTemplateBuildProvider.get_CodeCompilerType()        at System.Web.Compilation.BuildProvider.GetCompilerTypeFromBuildProvider(BuildProvider buildProvider)        at System.Web.Compilation.BuildProvidersCompiler.ProcessBuildProviders()        at System.Web.Compilation.BuildProvidersCompiler.PerformBuild() 

etc... etc...etc...

I've searched google looking for solutions, but everything I've found so far relates to having the control in an aspx page rather than a ascx page.

Does anyone know what could be causing this error?

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The reason you are getting this error is because your file has an .aspx extension and not .ascx.

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Read the error message carefully:.
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FileName=C:\Documents and Settings\bquakkelaar\Desktop\dropstuff\asp.net mvc\genesis\genesis\Views\Shared\EditorTemplates\ArticlePresentation.aspx.
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Now rename the file to ArticlePresentation.ascx and everything will work as expected..
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Also you could replace this line:.
<%: Html.EditorFor(ArticlePresentation => ArticlePresentation)%> 
with this:.
<%: Html.EditorForModel() %> 

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