Asp.net-mvc – ASP.NET MVC Beta 1 – where is Html.RenderPartial

asp.net-mvchtml-helperrenderpartial

I'm just in the process of upgrading my Preview 5 application to Beta 1, and I'm nearly there save for this one error when trying to render a control:

'System.Web.Mvc.HtmlHelper' does not
contain a definition for
'RenderPartial' and no extension
method 'RenderPartial' accepting a
first argument of type
'System.Web.Mvc.HtmlHelper' could be
found (are you missing a using
directive or an assembly reference?)

My markup (in the .aspx View Content Page) is:

<% Html.RenderPartial("Controls/UserForm", ViewData); %>

I've tried using Microsoft.Web.Mvc but to no avail. Does anyone know where Html.RenderPartial has gone, or what alternative I could use?

Best Answer

And also don't forget to add namespaces like below to the web config, I think preview 5 default web.config does not have System.Web.Mvc.Html in it:

<namespaces>
 <add namespace="System.Web.Mvc"/>
 <add namespace="System.Web.Mvc.Ajax"/>
 <add namespace="System.Web.Mvc.Html"/>
 <add namespace="System.Web.Routing"/>
 <add namespace="System.Linq"/>
 <add namespace="System.Collections.Generic"/>
</namespaces>

Related Solutions

Asp.net-mvc – Compile Views in ASP.NET MVC

From the readme word doc for RC1 (not indexed by google)

ASP.NET Compiler Post-Build Step

Currently, errors within a view file are not detected until run time. To let you detect these errors at compile time, ASP.NET MVC projects now include an MvcBuildViews property, which is disabled by default. To enable this property, open the project file and set the MvcBuildViews property to true, as shown in the following example:

<Project ToolsVersion="3.5" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
  <PropertyGroup>
    <MvcBuildViews>true</MvcBuildViews>
  </PropertyGroup>

Note Enabling this feature adds some overhead to the build time.

You can update projects that were created with previous releases of MVC to include build-time validation of views by performing the following steps:

Open the project file in a text editor.
Add the following element under the top-most <PropertyGroup> element: <MvcBuildViews>true</MvcBuildViews>
At the end of the project file, uncomment the <Target Name="AfterBuild"> element and modify it to match the following:

<Target Name="AfterBuild" Condition="'$(MvcBuildViews)'=='true'">
    <AspNetCompiler VirtualPath="temp" PhysicalPath="$(ProjectDir)\..\$(ProjectName)" />
</Target>

Asp.net-mvc – Using MVC HtmlHelper extensions from Razor declarative views

Take a look at Marcind's answer to this question. What you're experiencing is a limitation of putting declarative views in the App_Code folder.

Putting your helpers in App_Code works but has certain limitations that impact certain MVC scenarios (for example: no access to standard MVC Html. helpers)

Best Answer

Related Solutions

Asp.net-mvc – Compile Views in ASP.NET MVC

Asp.net-mvc – Using MVC HtmlHelper extensions from Razor declarative views

Related Topic