MVC ASPX To Razor - Register webcontrol - asp.net-mvc

I converted my MVC 3 project from to aspx to razor, having a problem with this line:
ASPX:
<%# Register TagPrefix="cc1" Namespace="WebControlCaptcha" Assembly="WebControlCaptcha" %>
Razor:
#{
Register TagPrefix="cc1" Namespace="WebControlCaptcha" Assembly="WebControlCaptcha";
}
Here is the error:
Compiler Error Message: CS1002: ; expected
Thanks in advance.

You can put, in the web.config inside Views folder, the following key:
<configuration>
<system.web>
<pages>
<controls>
<add assembly="WebControlCaptcha" namespace="WebControlCaptcha" tagPrefix="cc1" />
</controls>
</pages>
</system.web>
</configuration>

In my case, the application pool was set to use integrated pipeline mode with .NET Framework 2.0. The CAPTCHA image would not generate. I changed the application pool to use "Classic" while leaving the .NET Framework option the same and this fixed the image generation issue.

Related

HttpHandler not working

I am trying to integrate the FileUpload project from vid.ly to my web application which is in MVC ASP .NET 4 framework using Razor engine.
I have an HttpHandler under App_Code.
Progress.cs
public class Progress : IHttpHandler
{
...
}
I added this in RegisterRoutes() called from Globals.asax:
routes.IgnoreRoute("Progress.progress");
And added these lines in system.web section in web.config:
<httpHandlers>
<add verb="*" path="*.progress" type="MyNamespace.Progress"/>
</httpHandlers>
When I try to open http://localhost:39234/Progress.progress, I get a HTTP Error 404.0 - Not Found error with below detailed information:
Requested URL http://localhost:39234/Progress.progress
Physical Path c:\users\xxxxx\documents\visual studio 2012\Projects\SolutionName\ProjectName\Progress.progress
Seems like something is wrong with the mapping. Does anyone have any idea what I'm missing?
I finally figured out what the problem was. I had to put the mappings in system.webServer section in this format:
<add name="Progress" verb="*" path="*.progress" type="MyNamespace.Progress,MyNamespace"/>
Or, set the Action Build Path to "Content" for the Progress.cs files so that it doesn't get compiled in the MyNamespace.dll

Why would FederatedAuthentication.WSFederationAuthenticationModule be null in MVC Azure ACS Federated Authentication?

I'm trying to put together FederatedAuthentication with .NET 4.5, MVC 4, and active redirect using a custom server-side login page, using code from this tutorial, and from this code sample.
Redirecting to the LogOn method of my AccountController works fine, and the method looks like this:
public ActionResult LogOn()
{
HrdClient hrdClient = new HrdClient();
WSFederationAuthenticationModule fam = FederatedAuthentication.WSFederationAuthenticationModule; /*** Fails here because this is null **/
HrdRequest request = new HrdRequest(fam.Issuer, fam.Realm, context: Request.QueryString["ReturnUrl"]);
IEnumerable<HrdIdentityProvider> hrdIdentityProviders = hrdClient.GetHrdResponse(request);
ViewData["Providers"] = hrdIdentityProviders;
return View();
}
This fails because FederatedAuthentication.WSFederationAuthenticationModule is null.
Using VS 2012, I've run the new Identity and Access wizard (which seems to replace the old STS dialog). This has given me a folder of FederationMetadata, which appears correct, and several modifications to my Web.Config. In particular, the modules section looks like this:
<system.webServer>
<validation validateIntegratedModeConfiguration="false" />
<modules runAllManagedModulesForAllRequests="true">
<add name="WSFederationAuthenticationModule" type="System.IdentityModel.Services.WSFederationAuthenticationModule, System.IdentityModel.Services, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" preCondition="managedHandler" />
<add name="SessionAuthenticationModule" type="System.IdentityModel.Services.SessionAuthenticationModule, System.IdentityModel.Services, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" preCondition="managedHandler" />
</modules>
And having seen SO answers 8937123 and 8926099, I've added the following as well:
<httpModules>
<add name="WSFederationAuthenticationModule" type="Microsoft.IdentityModel.Web.WSFederationAuthenticationModule, Microsoft.IdentityModel, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
</httpModules>
And finally my nuget packages config shows Microsoft.IdentityModel, which is correctly referenced by the MVC app:
<packages>
<package id="Microsoft.IdentityModel" version="6.1.7600.16394" targetFramework="net45" />
</packages>
I've also seen this question on social.msdn, which just seems to suggest that the STS dialog does need to be run.
Can anybody explain why FederatedAuthentication.WSFederationAuthenticationModule would be null, and what I can do to stop this happening?
I managed to fix this myself, and since there are a few unanswered questions similar to this on SO, I'll leave the question up and post my own answer.
The issue is to do with upgrading the MVC application to .NET 4.5. Much of the WIF functionality remains the same (at least on the surface), but the classes have all moved to different assemblies. I fixed my problem following the migration guidelines here: http://msdn.microsoft.com/en-us/library/jj157089.aspx
The most important thing is to remove old references to the Microsoft.IdentityModel package (v 3.5.0) and make sure they are replaced by similar references to the System.IdentityModel and System.IdentityModel.Services dlls, which should be version 4.0, and come from the GAC rather than an external package.
My steps to fix were:
Clean out all the junk I'd added to Web.Config and start again with a default MVC Config file.
Remove the Microsoft.IdentityModel package and de-reference the dll
Run the Access and Identity wizard in VS 2012
Duplicate the System.IdentityModel.Services.WSFederationAuthenticationModule reference from <system.webServer><modules> in <system.web><httpModules>
Add <authentication mode="Forms"><forms loginUrl="~/Account/LogOn" /></authentication>
Compile, test, dance little jig of delight...
And this got the original WIF3.5 / MVC3 Code Sample working under.NET 4.5

MVC 4 #Scripts "does not exist"

I have just created an ASP.NET MVC 4 project and used Visual Studio 2012 RC to create a Controller and Razor Views for Index and Create Actions.
When I came to run the application, and browsed to the Create view, the following error was shown:
Compiler Error Message: CS0103: The name 'Scripts' does not exist in
the current context
The problem is the following code which was added automatically to the bottom of the View:
#section Scripts {
#Scripts.Render("~/bundles/jqueryval")
}
Why does Scripts not exist?
I looked at the base Web Page class in Assembly System.Web.Mvc.dll, v4.0.0.0
I can see the following helper properties available:
Ajax
Html
Url
But nothing named Scripts.
Any ideas?
EDIT:
My Web.config file looks like this (untouched from the one that Visual Studio created):
<system.web.webPages.razor>
<host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
<pages pageBaseType="System.Web.Mvc.WebViewPage">
<namespaces>
<add namespace="System.Web.Mvc" />
<add namespace="System.Web.Mvc.Ajax" />
<add namespace="System.Web.Mvc.Html" />
<add namespace="System.Web.Routing" />
</namespaces>
</pages>
</system.web.webPages.razor>
EDIT #2:
People are blogging about using the #Scripts helper:
SCOTT HANSELMAN Blog
Codebetter.com
Yet having just installed Visual Studio 2012 RC onto a fresh Windows 8 install I am still unable to use #Scripts even though Visual Studio adds it to the generated View!
Solutions are presented below.
I am not sure how to close this, because in the end an update seemed to resolve the issue. I double checked I had performed a clean install, using a new project. But the same failing project I had made works fine now after various updates and no manual obvious intervention. Thanks for all of the thoughts but there was definitely an issue at the time ;)
The key here is to add
<add namespace="System.Web.Optimization" />
to BOTH web.config files. My scenario was that I had System.Web.Optimization reference in both project and the main/root web.config but #Scripts still didn't work properly. You need to add the namespace reference to the Views web.config file to make it work.
UPDATE:
Since the release of MVC 4 System.Web.Optimization is now obsolete. If you're starting with a blank solution you will need to install the following nuget package:
Install-Package Microsoft.AspNet.Web.Optimization
You will still need to reference System.Web.Optimization in your web.config files. For more information see this topic:
How to add reference to System.Web.Optimization for MVC-3-converted-to-4 app
As many pointed out, restart of VS could be required after the above steps to make this work.
#Styles and #Scripts are 2 new helpers provided by System.Web.Optimization library. As the name suggests, they bundle and minify CSS and JavaScript files or resources respectively.
Try including the namespace System.Web.Optimization either by #using directive or through web.config
http://ofps.oreilly.com/titles/9781449320317/ch_ClientOptimization.html#BundlingAndMinification
UPDATE
Microsoft has moved the bundling/minification to a separate package called Microsoft.AspNet.Web.Optimization. You can download the assembly from nuget.
This post will be useful to you.
There was one small step missing from the above, which I found on another post. After adding
<add namespace="System.Web.Optimization" />
to your ~/Views/web.config namespaces, close and re-open Visual Studio. This is what I had to do to get this working.
I am using areas, and have just come up against this issue, I just copied the namespaces from the root web.config to the areas web. config and it now works!!
<add namespace="System.Web.Helpers" />
<add namespace="System.Web.Mvc" />
<add namespace="System.Web.Mvc.Ajax" />
<add namespace="System.Web.Mvc.Html" />
<add namespace="System.Web.Optimization" />
<add namespace="System.Web.Routing" />
<add namespace="System.Web.WebPages" />
I had the same problem and I used WinMerge to help me track this down. But as I researched it more, I found that Rick has the perfect blog post for it.
Summary:
Add <add namespace="System.Web.Optimization"/> to both web.config files
Run Install-Package -IncludePrerelease Microsoft.AspNet.Web.Optimization
Update Bundling code
Update Layout file
The last step is to update 10 other libraries. I didn't and it worked fine. So looks like you can procrastinate this one (unless I already updated 1 or more of them). :)
I had the same issue:
The System.Web.Optimization version I was using was outdated for MVC4 RC.
I updated my packages using the package manager in VS 2010.
In this MSDN blog, Mr. Andy talks about how to update your MVC 4 Beta project to MVC 4 RC. Updating my packages got the Scripts (particularly the web optimization one) to resolve for me:
To install the latest System.Web.Optimization package, use Package Manager Console (Tools -> Library Package Manager -> Package Manager Console) and run the below command:
Install-Package -IncludePrerelease Microsoft.AspNet.Web.Optimization
Use the System.Web.Optimization file included in the package in your references.
To update other packages:
Tools menu -> Library Package Manager -> Manage NuGet Packages for Solution.
Create a new MVC 4 RC internet application and run it. Navigate to Login which uses the same code
#section Scripts {
#Scripts.Render("~/bundles/jqueryval")
}
What allows Login.cshtml to work is the the Views\Web.config file (not the app root version) contains
<namespaces>
<add namespace="System.Web.Optimization"/>
</namespaces>
Why is your Create view not working and Login is?
Import System.Web.Optimization on top of your razor view as follows:
#using System.Web.Optimization
I ran into this problem, however while running the command:
Install-Package -IncludePrerelease Microsoft.AspNet.Web.Optimization
I received the cryptic message (gotta love a great pun before the first cup of coffee):
Install-Package : The specified cryptographic algorithm is not
supported on this platform.
I am running this on Windows XP SP3 (not by choice) and what I found was that I had to follow the instructions posted by the user artsnob on the ASP.NET Forum
Please uninstall the Nuget and try re-installing it. If you are unable to do this, login as an Administrator.
Go to Tools=> Extension Manager => Select "Nuget Package Manager" => UnInstall
Install it again, by searching "Nuget" => Install.
If it did not work, please try installing, 1.7.x version as I mentioned in the previous post (It doesn't mean, you have to use the previous version, if it works fine, we can report this bug, and get the patches for the latest version).
Once I ran this I could then run the command line to update the Web.Optimization.
Hope this saves someone some digging.
Just write
#section Scripts{
<script src="#System.Web.Optimization.BundleTable.Bundles.ResolveBundleUrl("~/bundles/jqueryval")"></script>
}
I upgraded from Beta to RC and faced 'Scripts' does not exist issue. Surfed all over the web and the final solution is what N40JPJ said plus another workaroudn:
Copy the following in View\Web.config :
<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.Web.Optimization"/>
<add namespace="System.Web.Helpers"/>
</namespaces>
and the following inside View\Shared_Layout.cshtml
#if (IsSectionDefined("scripts"))
{
#RenderSection("scripts", required: false)
}
Hope it helps.
Apparently you have created an 'Empty' project type without 'Scripts' folder.
My advice
-create a 'Basic' project type with full 'Scripts' folder.
With respect to all developers.
just remove/ hide the code from create & Edit razor view of your controller.
#section Scripts {
#Scripts.Render("~/bundles/jqueryval")
}
: remove view page.
: add namespace webconfig (in view directory)
: create view an try!
good luck...
One more for the pot - spent ages trying to work out the same problem - even though it was defined in the web.config for root and the root of Views. Turns out I'd mistakenly added it to the <system.web><pages><namespaces>, and not <system.web**.webPages.razor**><pages><namespaces> element.
Really easy to miss that!
When I enter on a page that haves this code:
#section Scripts {
#Scripts.Render("~/bundles/jqueryval")
}
This error occurs: Error. An error occurred while processing your request.
And this exception are recorded on my logs:
System.Web.HttpException (0x80004005): The controller for path '/bundles/jqueryval' was not found or does not implement IController.
em System.Web.Mvc.DefaultControllerFactory.GetControllerInstance(RequestContext requestContext, Type controllerType)
...
I have tried all tips on this page and none of them solved for me. So I have looked on my Packages folder and noticed that I have two versions for System.Web.Optmization.dll:
Microsoft.AspNet.Web.Optimization.1.1.0 (v1.1.30515.0 - 68,7KB)
Microsoft.Web.Optimization.1.0.0-beta
(v1.0.0.0 - 304KB)
My project was referencing to the older beta version. I only changed the reference to the newer version (69KB) and eveything worked fine.
I think it might help someone.
That has an obvious solution. I had the same problem later. Not related to Assembly References or ... .It'll occur In hierarchy calling of MVC Partial views, when you have complicated page structures. So calling/rendering each part separately on each page (maybe a master page or partial) will cause to not see required parts of page like the bellow code :
#RenderSection("Scripts", required: false)
That simply forces page to find and render related section and in case of failure shows you an error message like you.
So I suggest you to trace your pages (like program trace) from master to all of its partials to Detect Dependencies. Maybe it be a terrible work, but no other choices available here.
Not that according to my experience, some conditional situations in programming causes not to show you the right error causes the problem.
I had this issue after I added an Area to a project that didn't have any.
To get rid of it just copied the web.config withing root Views folder to the Views folder of the area and it started working.
For me this solved the problem, in NuGet package manager console write following:
update-package microsoft.aspnet.mvc -reinstall
When i started using MVC4 recently i faced the above issue while creating a project with the empty templates.
Steps to fix the issue.
Goto TOOLS --> Library Package Manager --> Packager Manager Console
Paste the below command and press enter
Install-Package Microsoft.AspNet.Web.Optimization
Note: wait for successful installation.
Goto Web.Config file in root level and add below namespace in pages namespace section.
add <namespace="System.Web.Optimization" />
Goto Web.Config in Views folder and follow the step 2.
Build the solution and run.
The Package mentioned in step 1 will add few system libraries into the solution references like System.Web.Optimization is not a default reference for empty templates in MVC4.
I hope this helps.
Thank you
I had a very similar error when upgrading a project from MVC3 to MVC4.
Compiler Error Message: CS0103: The name [blah] does not exist in the
current context
In my case, I had outdated version numbers in several of my Web.Configs.
I needed to update the System.Web.Mvc version number from "3.0.0.0" to "4.0.0.0" in every Web.Config in my project.
I needed to update all of my System.Web.WebPages, System.Web.Helpers, and System.Web.Razor version numbers from "1.0.0.0" to "2.0.0.0" in every Web.Config in my project.
Ex:
<configSections>
<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>
</configSections>
...
<compilation debug="true" targetFramework="4.0">
<assemblies>
<add assembly="System.Web.Helpers, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
<add assembly="System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
<add assembly="System.Web.WebPages, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
</assemblies>
</compilation>
Be sure to review the Web.Configs in each of your Views directories.
You can read more about Upgrading an ASP.NET MVC 3 Project to ASP.NET MVC 4.
If you added to your web.config and it still shows message, then you need to close your project and reopen it, now it will exist and #Styles.Render("") and #Scripts.Render() will work fine.
I solve this problem in MvcMusicStore by add this part of code in _Layout.cshtml
#if (IsSectionDefined("scripts"))
{
#RenderSection("scripts", required: false)
}
and remove this code from Edit.cshtml
#section Scripts {
#Scripts.Render("~/bundles/jqueryval")
}
Try this:
#section Scripts
{
Scripts.Render("~/bundles/jqueryval") // <- without ampersand at the begin
}

Why don't my Html Helpers have intellisense?

I can't get intellisense for my own html helpers. My CustomHtmlHelpers.cs looks like this:
using System.Web.Mvc;
using System.Text;
using System.Web;
namespace laget.Web.Helpers
{
public static class CustomHtmlHelpers
{
//MY HELPERS
}
}
and in my Web.config:
<pages>
<namespaces>
<add namespace="laget.Web.Helpers" />
<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.Web.WebPages"/>
<add namespace="System.Web.Helpers" />
</namespaces>
</pages>
If I put <#using laget.Web.Helpers> in my view, I get the intellisense issue fixed.
Should it not be enough with the code in Web.config?
Sometimes it doesn't seem to work right away. Try closing the .cshtml file, and re-opening it. Then if that doesn't work, try restarting Visual Studio. Also make sure you actually compiled your project, intellisense won't work with non-compiled helpers.
I'm pretty sure that you're not editing the correct Web.config file.
You need to add your namespace to the one in your Views directory.
<system.web.webPages.razor>
<host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
<pages pageBaseType="System.Web.Mvc.WebViewPage">
<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="laget.Web.Helpers" />
</namespaces>
</pages>
</system.web.webPages.razor>
You actually don't need to restart Visual Studio in most cases. All you need to do is close the .cshtml file and reopen it!
It needs it on the local page. I'm pretty sure this has to do with Namespace resolution. It isn't exactly sure what you are referring to without the local using statement.
I ran into this today as well. Sometimes just closing the Razor view's window in Visual Studio and re-opening it will do the trick without having to do a full Visual Studio restart.
I tried to solve an issue like this one yesterday. I had e pre-compiled dll (project name ie: MyHtmlHelpers) containing helpers and lot of other classes.
I had the assembly referenced in the web project and the all "standard"-helpers showed up in intellisense but, even though I added the namespace to both web.config in the root and in the views-folder nothing worked. When running the project helpers works, but not in intellisense.
I added a new class and wrote a new html helper inside the web project, added the namespace to web.config. And that worked.
After some hours add tried my last card, adding the MyHtmlHelpers-project to the same solution as my webproject. That did the trick. I diden't change anything in the configs just added the project to the same solution and changed the reference to point at the project insted of the compiled dll.
Isen't that strange? A VS-bug?
I found that i was adding the reference to the wrong web.config. It's not the main config but the web.config in the views directory...
So now I will show you the steps
1.Create or open an existing class library project (if you open an existing one be sure to remove the MVC5 nuget package)
2.Add the MVC (5.0) nuget package (
right click project in solution explorer -> Manage NuGet Packages -> search for MVC and install “Microsoft ASP.NET MVC”)
3.Close any and all open .cshtml files
4.Right click project -> Properties -> Build -> change Output path to your project “bin/”
5.Add the following minimal Web.config to the root of your class library project
( the web config file is solely needed for intellisense. Configuration (via Web.config)
should be done in the WebApplication hosting your ClassLibrary assembly)
6.Clean and Build the solution.
7.Open cshtml file and try now :)
I found that if it still doesn't work, you may need to go to the properties of the custom class and change the build action from "content" to "compile". That resolved it for me.
I try all of this solutions, one more thing which i didnt find is that in root web.config i must change webpages:Version from 2.0.0.0 to 3.0.0.0.
Open and close all .cshtml files and it's worked.
<appSettings>
<add key="webpages:Version" value="3.0.0.0" />
<add key="webpages:Enabled" value="false" />

Html.RenderAction error

I have a ASP.NET MVC 1 application and using Visual Web Developer Express. I can not get the Html.RenderAction("Controller","Action") to work on my MasterPage. (Site.Master) in the Shared folder.
VWD says "Html" is not recognized here.
I took to the following steps to implement the Html.RenderAction("Controller","Action") method.
Downloaded Micrsoft.Web.Mvc.dll
Updated the web.config with a reference to Micrsoft.Web.Mvc.dll '
I added a reference to Micrsoft.Web.Mvc.dll in my project manually.
I'm following the book: Pro ASP.NET MVC Framework by Steven Sanderson and downloaded the sample file where he covers this topic (Ch 4 - 6) and his sample file is giving me the same error?
Please help!
Thanks!
Quinntyne
Sample code would help.
A few things:
Html.RenderAction() is not available in MVC 1, it was added in MVC 2. That's probably not the cause of your error message though.
When you say that you "added a reference in your web.config,", make sure you added the namespaces to the namespaces section:
<add namespace="System.Web.Mvc" />
<add namespace="System.Web.Mvc.Ajax" />
<add namespace="System.Web.Mvc.Html" />
Adding that last one will probably address the issue.

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