Set `&lt;MvcBuildViews&gt;true&lt;/MvcBuildViews&gt;` in the `&lt;PropertyGroup&gt;` element of your .csproj file.

Besides the &lt;MvcBuildViews&gt;true&lt;/MvcBuildViews&gt; setting, you still need to ensure below setting is active in your csproj:

    &lt;Target Name=&quot;MvcBuildViews&quot; AfterTargets=&quot;AfterBuild&quot; Condition=&quot;&#39;$(MvcBuildViews)&#39;==&#39;true&#39;&quot;&gt;
    &lt;AspNetCompiler VirtualPath=&quot;temp&quot; PhysicalPath=&quot;$(WebProjectOutputDir)&quot; /&gt;
    &lt;/Target&gt;

**MvcBuildViews is often mistakenly**, as it doesn’t precompile views in the terms you&#39;d like.

MvcBuildViews builds views temporarily and gives build results back to building process to show possible build error in VS errors window.

For achieving a real precompilation of views for production release, you have to properly set specific values in the _Publish Web App_ configuration window of your project.

See [here][1] for the main article about how to do it, and [here][2] for going deeper on how to do it via msBuild and Azure.


  [1]: https://gunnarpeipman.com/aspnet/asp-net-mvc-precompiling-views/
  [2]: http://blog.deltacode.be/2017/01/08/fix-slow-startup-of-asp-net-mvc-5-on-azure-app-services/

I have some elements generated with PHP and I would like to know if it is possible to select an element with an incomplete id, example:

    &lt;div class=&quot;1&quot; id=&quot;as_1&quot;&gt; ... &lt;/div&gt;
    &lt;div class=&quot;2&quot; id=&quot;bs_1&quot;&gt; ... &lt;/div&gt;
    
    &lt;div class=&quot;1&quot; id=&quot;as_2&quot;&gt; ... &lt;/div&gt;
    &lt;div class=&quot;2&quot; id=&quot;bs_2&quot;&gt; ... &lt;/div&gt;

The class is being used to things they have in common, but now I need to select them individually but I don&#39;t know the entire id name.

Can I use something like:

&lt;!-- language: lang-css --&gt;

    #as_{ ... }
    #bs_{ ... }


CSS select elements with partial id

I am new to android. I am designing an android application that receives serial data from a hardware device through bluetooth. I am working on Htc desire S. I used the sample Bluetooth chat code to receive data. But the data received is incorrect. It misses some values. Can anyone please provide me any other sample code to receive large amount of data through bluetooth and save it in a file.

How to receive serial data using android bluetooth

I believe I read somewhere there is a setting in one of the project files that will allow you to compile the `.cshtml` files when building your Visual Studio project. 

Just getting started with `MVC/Razor/Query` Mobile, and am getting annoyed with the &quot;Error loading page&quot; when I have an error in a code block inside a `.cshtml` file


How to compile cshtml before runtime

<p>I believe I read somewhere there is a setting in one of the project files that will allow you to compile the <code>.cshtml</code> files when building your Visual Studio project.</p>
<p>Just getting started with <code>MVC/Razor/Query</code> Mobile, and am getting annoyed with the "Error loading page" when I have an error in a code block inside a <code>.cshtml</code> file</p>


I am currently using a `DbContext` similar to this:

    namespace Models
    {
        public class ContextDB: DbContext
        {
                  
            public DbSet&lt;User&gt; Users { get; set; }
            public DbSet&lt;UserRole&gt; UserRoles { get; set; }
    
            public ContextDB()
            {
                
            }
        }
    }

I am then using the following line at the top of **ALL** my controllers that need access to the database. Im also using it in my UserRepository Class which contains all methods relating to the user (such as getting the active user, checking what roles he has, etc..):

    ContextDB _db = new ContextDB();

Thinking about this, there are occasions when one visitor can have multiple DbContexts active, for instance if it is visiting a controller that uses the UserRepository, which might not be the best of ideas.

When should I make a new DbContext? Alternatively, should I have one global context that is passed around and reused in all places? Would that cause a performance hit? Suggestions of alternative ways of doing this are also welcome.


When should I create a new DbContext()

This has had me stumped for a while.  None of the commonly encountered similar situations seem to apply here apparently.  I&#39;ve probably missed something obvious but I can&#39;t see it.

In my Mvc Web Application I use the Authorize and AllowAnonymous attributes in such a way that you have to explicitly open up an action as publicly available rather than lock down the secure areas of the site.  I much prefer that approach. I cannot get the same behaviour in my WebAPI however.

I have written a custom Authorization Attribute that inherits from System.Web.Http.AuthorizeAttribute with the following:

    [AttributeUsage(AttributeTargets.Class | AttributeTargets.Method, Inherited = true, AllowMultiple = true)]
    public class MyAuthorizationAttribute : System.Web.Http.AuthorizeAttribute

I have this registered as a filter:

        public static void RegisterHttpFilters(HttpFilterCollection filters)
        {
            filters.Add(new MyAuthorizationAttribute());
        }

This all works as expected, actions are no longer available without credentials.  The problem is that now the following method will not allow the AllowAnonymous attribute to do it&#39;s thing:

    [System.Web.Http.AllowAnonymous]
    public class HomeController : ApiController
    {
        [GET(&quot;/&quot;), System.Web.Http.HttpGet]
        public Link[] Index()
        {
            return new Link[] 
            { 
                new SelfLink(Request.RequestUri.AbsoluteUri, &quot;api-root&quot;),
                new Link(LinkRelConstants.AuthorizationEndpoint, &quot;OAuth/Authorize/&quot;, &quot;authenticate&quot;),
                new Link(LinkRelConstants.AuthorizationTokenEndpoint , &quot;OAuth/Tokens/&quot;, &quot;auth-token-endpoint&quot;)
            };
        }
    }

The most common scenario seems to be getting the two Authorize / AllowAnonymous attributes mixed up.  System.Web.Mvc is for web apps and System.Web.Http is for WebAPI (as I understand it anyway).

Both of the Attributes I&#39;m using are from the same namespace - System.Web.Http.  I assumed that this would just inherit the base functionality and allow me to inject the code I need in the OnAuthotize method.

According to the documentation the AllowAnonymous attribute works inside the OnAuthorize method which I call immediately:

        public override void OnAuthorization(HttpActionContext actionContext)
        {
            base.OnAuthorization(actionContext);

Any thought&#39;s would be really appreciated.

Has anyone encountered this problem before and found the root cause?

AllowAnonymous not working with Custom AuthorizationAttribute

In an ASP.NET MVC 3 razor view, I have the code:

    &lt;!DOCTYPE html&gt;
    &lt;html&gt;
    &lt;head&gt;
     &lt;style type=&quot;text/css&quot;&gt;
        @media print
        {
        table { page-break-inside:auto; width: 100%; }
        tr    { page-break-inside:avoid; page-break-after:auto }
        thead { display:table-header-group }
        tfoot { display:table-footer-group }
        }
     &lt;/style&gt;
    &lt;/head&gt;
    &lt;body&gt;
    &lt;table&gt;
However I got the error:

    The name &#39;media&#39; does not exist in the current context.
Thanks.

The name &#39;media&#39; does not exist in the current context

Could you explain [ValidateAntiForgeryToken][1] purpose and show me example about `ValidateAntiForgeryToken` in MVC 4?

I could not find any examples which explain this attribute?


  [1]: http://msdn.microsoft.com/en-us/library/system.web.mvc.validateantiforgerytokenattribute%28v=vs.100%29.aspx

ValidateAntiForgeryToken purpose, explanation and example

I&#39;m trying to perform a cross-domain POST request to an ASP.NET MVC controller action. This controller action accepts &amp; uses various parameters. The problem is that when the preflight request happens, the controller action actually attempts to execute &amp; because the OPTIONS request doesn&#39;t pass any data, the controller action throws out a 500 HTTP error. If I remove the code that uses the parameter, or the parameter itself, the entire request chain is completed successfully.

An example of how this is implemented:

**Controller Action**

    public ActionResult GetData(string data)
    {
    	return new JsonResult
    	{
    		Data = data.ToUpper(),
    		JsonRequestBehavior = JsonRequestBehavior.AllowGet
    	};
    }

**Client-side code**

    &lt;script type=&quot;text/javascript&quot;&gt;
            $(function () {
                $(&quot;#button-request&quot;).click(function () {
                    var ajaxConfig = {
                        dataType: &quot;json&quot;,
                        url: &quot;http://localhost:8100/host/getdata&quot;,
                        contentType: &#39;application/json&#39;,
                        data: JSON.stringify({ data: &quot;A string of data&quot; }),
                        type: &quot;POST&quot;,
                        success: function (result) {
                            alert(result);
                        },
                        error: function (jqXHR, textStatus, errorThrown) {
                            alert(&#39;Error: Status: &#39; + textStatus + &#39;, Message: &#39; + errorThrown);
                        }
                    };
    
                    $.ajax(ajaxConfig);
                });
            });
        &lt;/script&gt;

Now, whenever the preflight request happens, it returns a 500 HTTP code, because the &quot;data&quot;  parameter is null, seeing as the OPTIONS request doesn&#39;t pass any values.

The server application has been set up in my local IIS on port 8100 &amp; the page running the client-side code is set up on port 8200 to mimic the cross-domain calls.

I have also configured the host (on 8100) with the following headers:

    Access-Control-Allow-Headers: Content-Type
    Access-Control-Allow-Methods: POST, GET
    Access-Control-Allow-Origin: http://localhost:8200

One workaround I had found, was to check the HTTP method that executes the action &amp; if it&#39;s a OPTIONS request to just return blank content, otherwise execute the action code. Like so:

    public ActionResult GetData(string data)
    {
    	if (Request.HttpMethod == &quot;OPTIONS&quot;) {
    		return new ContentResult();
    	} else {
    		return new JsonResult
    		{
    			Data = data.ToUpper(),
    			JsonRequestBehavior = JsonRequestBehavior.AllowGet
    		};
    	}
    }

But this approach feels very clunky to me. I considered adding this sort of logic to an `Attribute`, but even this would mean decorating every action that will get called using CORS with it.

Is there a more elegant solution to getting this functionality to work?

Handling CORS Preflight requests to ASP.NET MVC actions

I need remove the attribute &quot;checked&quot; of one checkbox when errors occur.

The .removeAttr function not work. Any idea? :/

HTML

    &lt;div data-role=&quot;controlgroup&quot; data-type=&quot;horizontal&quot; data-mini=&quot;true&quot; style=&quot;margin-left: auto; margin-right: auto; width: 100%; text-align: center;&quot;&gt;
    	&lt;input type=&quot;checkbox&quot; id=&quot;captureImage&quot; name=&quot;add_image&quot; class=&quot;custom&quot; /&gt;
    	&lt;label for=&quot;captureImage&quot; data-icon=&quot;checkbox&quot;&gt;Image&lt;/label&gt;
    	&lt;input type=&quot;checkbox&quot; id=&quot;captureAudio&quot; name=&quot;add_audio&quot; class=&quot;custom&quot; /&gt;
    	&lt;label for=&quot;captureAudio&quot; data-icon=&quot;checkbox&quot;&gt;Audio&lt;/label&gt;
    	&lt;input type=&quot;checkbox&quot; id=&quot;captureVideo&quot; name=&quot;add_video&quot; class=&quot;custom&quot; /&gt;
    	&lt;label for=&quot;captureVideo&quot; data-icon=&quot;checkbox&quot;&gt;Video&lt;/label&gt;
    &lt;/div&gt;

Javascript

    $(&quot;#captureImage&quot;).live(&quot;change&quot;, function() {
    	// $(&quot;#captureImage&quot;).prop(&#39;checked&#39;, false); // Here Work
    
    	if($(&quot;#captureImage:checked&quot;).val() !== undefined) {
    			navigator.device.capture.captureImage(function(mediaFiles) {
    	        console.log(&quot;works&quot;);
        	}, function(exception) {
        		$(&quot;#captureImage&quot;).prop(&#39;checked&#39;, false); // Not Works Here
        		_callback.error(exception);
        	}, {limit: 1});
    	}
    });

    /*
    $(&quot;#captureAudio&quot;).live(&quot;change&quot;, function() {
    	if($(&quot;#captureAudio:checked&quot;).val() !== undefined) {
    			navigator.device.capture.captureAudio(function(mediaFiles) {
    	        console.log(&quot;audio&quot;);
        	}, function() {
        		$(&quot;#captureAudio&quot;).removeAttr(&#39;checked&#39;);
        		_callback.error;
        	}, {limit: 1});
    	}
    });

    $(&quot;#captureVideo&quot;).live(&quot;change&quot;, function() {
    	if($(&quot;#captureVideo:checked&quot;).val() !== undefined) {
    			navigator.device.capture.captureVideo(function(mediaFiles) {
    	        console.log(&quot;video&quot;);
        	}, function(exception) {
        		$(&quot;#captureVideo&quot;).prop(&#39;checked&#39;, false);
        		_callback.error(exception);
        	}, {limit: 1});
    	}
    });
    */

Remove attribute &quot;checked&quot; of checkbox

I am using jQuery Mobile, and I am having trouble understanding differences between classic document ready and jQuery Mobile page events.

1. What is the real difference?

    Why should

        &lt;!-- language: lang-js --&gt;

        $(document).ready() {

        });

    be better than

    &lt;!-- language: lang-js --&gt;

        $(document).on(&#39;pageinit&#39;) {

        });

2. What is the order of page events, when you transition from one page to another?

3. How can I send data from one page to another and is it possible to access data from previous page?


jQuery Mobile: document ready vs. page events

I was wondering how can I enhance dynamically jQuery Mobile page?

I have tried to use these methods:

1. `$(&#39;[data-role=&quot;page&quot;]&#39;).trigger(&#39;create&#39;);`

   and

2. `$(&#39;[data-role=&quot;page&quot;]&#39;).page();`

Also how can I prevent enhancement markup of check boxes only?

jQuery Mobile: Markup Enhancement of dynamically added content

I recently build an android app using html, css, javascript and running them through phonegap to create the actual app. One of the problems I encountered in one phone is that the text looks too small. Also some images are a little small as well. I added a viewport meta tag but it doesnt seem to work either. Here are the meta tags:


        &lt;meta http-equiv=&quot;Content-Type&quot; content=&quot;text/html; charset=UTF-8&quot; /&gt;
        &lt;meta name=&quot;format-detection&quot; content=&quot;telephone=no&quot; /&gt;
        &lt;meta name=&quot;viewport&quot; content=&quot;width=device-width, initial-scale=1.0, minimum-scale=1.0, user-scalable=no, target-densitydpi=device-dpi&quot; /&gt;`


This is how it looks  
![This happens in a particular phone(Samsung Galaxy)][1]&lt;br&gt;

This is how its supposed to look:  
![This is how it looks in htc wildfire s][2]


  [1]: http://i.stack.imgur.com/QeacM.jpg
  [2]: http://i.stack.imgur.com/LRJ9H.jpg

Phonegap Application text and layout too small

I&#39;m building a mobile app using jQuery Mobile 1.3.0, EaselJs 0.6.0 and TweenJs 0.4.0.

So, when I load the page, some content gets visually duplicated. The DIVs are not really duplicated, it is just visual.


&gt;  - **This bug only appears on Safari (Windows + OSX).**
&gt;  - If I click and slide to select the page, the bug disappears.
&gt;  - If I switch page *(with jQuery Mobile slide transition)*, it also disappears.

Here is a screenshot:

![Good and Bad screenshot examples][1]

My code is massive so I cannot really post it fully here. I&#39;ve just spent 2 hours playing around with my code to try to fix this. I really have no clue. 

If you have an idea and need more information, then please let me know.


  [1]: http://i.stack.imgur.com/hJRGh.jpg

Visual bug in Safari using jQuery Mobile - Content duplication

When bundling/minification is enabled, some of my bundles seem to have an invalid URL in the browser (ending with a /), and IIS gives a 403 forbidden error, as if trying to list a folder&#39;s contents.

There&#39;s no difference in the way my bundles are set up - they are not .min.css, access permissions are correct etc.

MVC4 style bundle giving 403

I have recently started playing around with ASP.net MVC (4), but I can&#39;t wrap my head around this one issue I&#39;m having. I&#39;m sure it&#39;s easy when you know it.

I&#39;m essentially trying to do the the following in my Index view:

1. List the current items in the database of type &quot;Note&quot; in the Index view (that&#39;s easy)
2. Creating new items in the same Index view (not so easy). 

So I figured I needed a partial view, and that I have created as following (_CreateNote.cshtml):

    @model QuickNotes.Models.Note
    @using (Html.BeginForm()) {
    @Html.ValidationSummary(true)

    &lt;fieldset&gt;
        &lt;legend&gt;Note&lt;/legend&gt;

        &lt;div class=&quot;editor-label&quot;&gt;
            @Html.LabelFor(model =&gt; model.Content)
        &lt;/div&gt;
        &lt;div class=&quot;editor-field&quot;&gt;
            @Html.EditorFor(model =&gt; model.Content)
            @Html.ValidationMessageFor(model =&gt; model.Content)
        &lt;/div&gt;
        &lt;p&gt;
            &lt;input type=&quot;submit&quot; value=&quot;Create&quot; /&gt;
        &lt;/p&gt;
    &lt;/fieldset&gt;
    }

In my original Index view (Index.cshtml) I&#39;m trying to render this partial view:

    @model IEnumerable&lt;QuickNotes.Models.Note&gt;
    
    
    @{
        ViewBag.Title = &quot;Personal notes&quot;;
    }
    
    &lt;h2&gt;Personal notes&lt;/h2&gt;
    
    &lt;p&gt;
        @Html.ActionLink(&quot;Create New&quot;, &quot;Create&quot;)
    &lt;/p&gt;
    
    &lt;table&gt;
        &lt;tr&gt;
            &lt;th&gt;
                @Html.DisplayNameFor(model =&gt; model.Content)
            &lt;/th&gt;
            &lt;th&gt;&lt;/th&gt;
        &lt;/tr&gt;
    
        @foreach (var item in Model) {
            &lt;tr&gt;
                &lt;td&gt;
                    @Html.DisplayFor(modelItem =&gt; item.Content)
                &lt;/td&gt;
                &lt;td&gt;
                    @Html.ActionLink(&quot;Edit&quot;, &quot;Edit&quot;, new { id=item.ID }) |
                    @Html.ActionLink(&quot;Details&quot;, &quot;Details&quot;, new { id=item.ID }) |
                    @Html.ActionLink(&quot;Delete&quot;, &quot;Delete&quot;, new { id=item.ID })
                &lt;/td&gt;
            &lt;/tr&gt;
        }
    &lt;/table&gt;
    
    &lt;div&gt;
        @Html.Partial(&quot;_CreateNote&quot;)
    &lt;/div&gt;

(using: @Html.Partial(&quot;_CreateNote&quot;))
However. This doesn&#39;t seem to work, as I get the following error message: 

    Line 35: 
    Line 36: &lt;div&gt;
    Line 37:     @Html.Partial(&quot;_CreateNote&quot;);
    Line 38: &lt;/div&gt;
    
    Source File: c:\Dropbox\Projects\workspace .NET MVC\QuickNotes\QuickNotes\Views\Notes\Index.cshtml    Line: 37 
    
    Stack Trace: 
    
    
    [InvalidOperationException: The model item passed into the dictionary is of type &#39;System.Data.Entity.DbSet`1[QuickNotes.Models.Note]&#39;, but this dictionary requires a model item of type &#39;QuickNotes.Models.Note&#39;.]
       System.Web.Mvc.ViewDataDictionary`1.SetModel(Object value) +405487

My NotesController looks like this:

    public ActionResult Index()
    {

        var model = _db.Notes;
        
        return View(model);
    }

    //
    // GET: /Notes/Create

    public ActionResult Create()
    {
        return View();
    }

    //
    // GET: /Notes/_CreateNote - Partial view
    public ViewResult _CreateNote()
    {
        return View(&quot;_CreateNote&quot;);
    }

I think it has to do with the fact that the Index view is using the model differently, as in @model IEnumerable, but no matter how I change it around, using RenderPartial, RenderAction, changing ActionResult to ViewResult etc, I can&#39;t get it to work.

Any tips would be greatly appreciated!
Please let me know if you need any more information. I&#39;d be happy to zip down the entire project if needed.

Using partial views in ASP.net MVC 4

I know this is a pretty basic question over here. 

But could you tell me ***all possible options*** available to,
  &lt;br/&gt;call a ***Control Action Method [generally any server side routine] from a Razor View*** and, 
  &lt;br/&gt;in what ***scenarios each are best applicable*** to be used in.

Thanks.

In ASP.NET MVC: All possible ways to call Controller Action Method from a Razor View

In this line:

    @Html.ActionLink(&quot;Reply&quot;, &quot;BlogReplyCommentAdd&quot;, &quot;Blog&quot;,
             new { blogPostId = blogPostId, replyblogPostmodel = Model,
             captchaValid = Model.AddNewComment.DisplayCaptcha })

I get the following runtime error on blogPostId:

&gt; The parameters dictionary contains a null entry for parameter
&gt; &#39;blogPostId&#39; of non-nullable type &#39;System.Int32&#39; for method
&gt; &#39;System.Web.Mvc.ActionResult BlogReplyCommentAdd(Int32,
&gt; Nop.Web.Models.Blogs.BlogPostModel, Boolean)&#39; in
&gt; &#39;Nop.Web.Controllers.BlogController&#39;. An optional parameter must be a
&gt; reference type, a nullable type, or be declared as an optional
&gt; parameter. Parameter name: parameters

I have already assign a value for this on top such as 

        @{         
            var blogPostId = Model.Id;          
         }

My Controller:

     public ActionResult BlogReplyCommentAdd(int blogPostId, BlogPostModel model, bool captchaValid)
        {}

Am I doing something wrong? Please give me an example.

Pass parameter to controller from @Html.ActionLink MVC 4

I want to do this:

    string template = &quot;Hello @Model.Name! Welcome to Razor!&quot;;
    string result = Razor.Parse(template, new { Name = &quot;World&quot; });

And it appears that http://razorengine.codeplex.com is perfect, except it&#39;s a year old.

EDIT: Turns out that RazorEngine has moved to GitHub and had a commit a few months back: https://github.com/Antaris/RazorEngine

I noticed that Service Stack has some Razor self-hosting but while there&#39;s a long page here http://razor.servicestack.net there&#39;s no &quot;hello world you can totally do this from a console.&quot;

What&#39;s the current best solution for generating HTML from ASP.NET Razor templates within a Console Application?

Content Type	Original Author	Original Content on Stackoverflow
Question	FatFingers	View Question on Stackoverflow
Solution 1 - asp.net Mvc	Levi Botelho	View Answer on Stackoverflow
Solution 2 - asp.net Mvc	karl li	View Answer on Stackoverflow
Solution 3 - asp.net Mvc	Gianpiero	View Answer on Stackoverflow

How to compile cshtml before runtime

asp.net Mvc Problem Overview

asp.net Mvc Solutions

Solution 1 - asp.net Mvc

Solution 2 - asp.net Mvc

Solution 3 - asp.net Mvc

How to receive serial data using android bluetooth

CSS select elements with partial id

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