Razor View throwing “The name 'model' does

2019-01-06 10:55发布

After significant refactoring in my MVC 4 application, and Razor shows this error while debugging Views:

The name 'model' does not exist in the current context.

This is the offending line of code:

@model ICollection<DataSourceByActive>

I know that the usage of @model is correct.

Why is this happening? How can I fix it?

20条回答
Lonely孤独者°
2楼-- · 2019-01-06 11:18

In my case I was missing @ at the beginning of the foreach

    @foreach (var item in Model)
    {
        <tr class="clickable-row">
            <td class="clickable-field">
                @Html.DisplayFor(modelItem => item.Label)
            </td>
            <td class="clickable-field hidden-xs">
                @Html.DisplayFor(modelItem => item.Value)
            </td>
        </tr>
    }
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该账号已被封号
3楼-- · 2019-01-06 11:20

In order to solve this I made sure that I upgraded to the newest MVC version using NuGet and Package Manager Console.

Install-Package Microsoft.AspNet.Mvc -Version 5.2.4

Then upgraded to the latest Razor version

Install-Package Microsoft.AspNet.Razor -Version 3.2.4

Then I changed all the web.config files to reflect the change. As you will see below:

In the main web.config file, make sure that the webpages:version is correct. This is where it can be found (ignore the other keys):

<configuration>
 <appSettings>
   <add key="webpages:Version" value="3.0.0.0"/>
   <add key="ClientValidationEnabled" value="true"/>
   <add key="UnobtrusiveJavaScriptEnabled" value="true"/>
 </appSettings>
</configuration>

Then look for the other versions listed in the assemblies, check the version of the assembly against the version of the library listed in your project references! You may not need all of these.

<system.web>
    <compilation debug="true" targetFramework="4.6">
        <assemblies>
            <add assembly="System.Web.Abstractions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
            <add assembly="System.Web.Helpers, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
            <add assembly="System.Web.Routing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
            <add assembly="System.Web.Mvc, Version=5.2.4.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
            <add assembly="System.Web.WebPages, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
        </assemblies>
    </compilation>
</system.web>

Runtime assemblyBinding should show the "newversion" as well, see where it reads NewVersion 5.2.4.0? But also check all the other versions.

<runtime>
    <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
       <dependentAssembly>
        <assemblyIdentity name="System.Web.Razor" publicKeyToken="31bf3856ad364e35" culture="neutral"/>
        <bindingRedirect oldVersion="0.0.0.0-3.0.0.0" newVersion="3.0.0.0"/>
      </dependentAssembly>
      <dependentAssembly>
        <assemblyIdentity name="System.Web.Helpers" publicKeyToken="31bf3856ad364e35"/>
        <bindingRedirect oldVersion="1.0.0.0-3.0.0.0" newVersion="3.0.0.0"/>
      </dependentAssembly>
      <dependentAssembly>
        <assemblyIdentity name="System.Web.WebPages" publicKeyToken="31bf3856ad364e35"/>
        <bindingRedirect oldVersion="1.0.0.0-3.0.0.0" newVersion="3.0.0.0"/>
      </dependentAssembly>
      <dependentAssembly>
        <assemblyIdentity name="System.Web.Mvc" publicKeyToken="31bf3856ad364e35"/>
        <bindingRedirect oldVersion="1.0.0.0-5.2.4.0" newVersion="5.2.4.0"/>
      </dependentAssembly>
    </assemblyBinding>
  </runtime>

THEN in the Views Web.Config section, make sure that Razor is the correct version:

<configuration>
  <configSections>
    <sectionGroup name="system.web.webPages.razor" type="System.Web.WebPages.Razor.Configuration.RazorWebSectionGroup, System.Web.WebPages.Razor, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
    </sectionGroup>
  </configSections>
<configuration>

And Lastlt there is the Pages section of the Views Web.Config

    <pages
    validateRequest="false"
    pageParserFilterType="System.Web.Mvc.ViewTypeParserFilter, System.Web.Mvc, Version=5.2.4.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"
    pageBaseType="System.Web.Mvc.ViewPage, System.Web.Mvc, Version=5.2.4.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"
    userControlBaseType="System.Web.Mvc.ViewUserControl, System.Web.Mvc, Version=5.2.4.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
      <controls>
        <add assembly="System.Web.Mvc, Version=5.2.4.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" namespace="System.Web.Mvc" tagPrefix="mvc" />
      </controls>
    </pages>
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smile是对你的礼貌
4楼-- · 2019-01-06 11:22

I've found a solution. If you want to update razor version or mvc 4 to 5, change some lines.

Old code in Views/web.config

<sectionGroup name="system.web.webPages.razor" type="System.Web.WebPages.Razor.Configuration.RazorWebSectionGroup, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
  <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
  <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
</sectionGroup>

Replaced with

<sectionGroup name="system.web.webPages.razor" type="System.Web.WebPages.Razor.Configuration.RazorWebSectionGroup, System.Web.WebPages.Razor, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
    <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
    <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
</sectionGroup>

sectionGroup must be change, too.

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Ridiculous、
5楼-- · 2019-01-06 11:23

In my case, the following code founds to be useful. Place below code in Web.config file under Views folder.

<configSections>

  <sectionGroup name="system.web.webPages.razor" type="System.Web.WebPages.Razor.Configuration.RazorWebSectionGroup, System.Web.WebPages.Razor, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
   <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
   <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
  </sectionGroup>

</configSections>

Once the code is updated, make sure to clean and rebuild the solution. I hope this will help you out!

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狗以群分
6楼-- · 2019-01-06 11:23

if you take this problem without any change on your project as like as me, you need change your web.config that placed in View Folder. just write new line by Enter or Remove an empty line . then save your web.config and rebuild. my problem solved with this solution

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爱情/是我丢掉的垃圾
7楼-- · 2019-01-06 11:23

I solved the problem by using @Model instead of just model when printing the variables.

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