Looking for the solution. Yes you are at the right place. Once I also faced the same issue when I was working on a MVC project, I got the error states that “The located assembly’s manifest definition does not match the assembly reference” .
When I ran the solution I saw the YSD (yellow screen of death) that simply gave me the assembly name which is causing the issue.
Could not load file or assembly ‘System.Web.Optimization, Version=220.127.116.11, Culture=neutral, PublicKeyToken=31BF3856AD364E35’ or one of its dependencies. The located assembly’s manifest definition does not match the assembly reference. HRESULT: 0x80131040
In my case I have several MVC projects referring to “System.Web.Optimization” , but I’m getting this issue only in newly added project. When I investigated the issue I found that the project referring to the higher version of “System.Web.Optimization”. This is because the dll has been included using nuget and nuget always downloads the latest version of dll.
FYI: The Microsoft.Web.Optimization package is now obsolete. With ASP.NET (MVC) 4 and higher you should install the Microsoft ASP.NET Web Optimization Framework.
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In this article we will learn what are HTML helper Methods that comes within MVC framework!!!!…
So What are HTML Helper Methods ???
Html Helpers methods are equivalent to ASP.Net web form controls, enables you to render HTML content, modify the HTML output .
- HTML Helpers are more light weight.
- It does not have event model and viewstate.
The easiest way to render HTML link is to use HTML.ActionLink() helper . With MVC , the HTML.ActionLink() does not link to view rather it creates a link to controller.
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HTML Helper in MVC
In this article we will learn how to code for entering data form using simple HTML Helpers.
- Create New ASP.NET MVC4 Web Application.
- Select Razor As View Engine.
- Right click on Model ->Add new Class ->Customer Class.
- Right click on controller and -> Add new item-> CustomerController
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Render Pdf within browser
There are different ways to render Pdf in a browser. In this I’m explaining to render Pdf by fileContent/byte array. In a below example I’m using Index Action which returns the FileContentResult.
public ActionResult Index()
FileContentResult result = new FileContentResult(byteArray, “application/pdf”);
That’s it from controller side. Now you have to call you Action to get it rendered on your HTML. You can use different HTML5 tags like :
<iframe src = ‘@Url.Action(“Index”, “Home”)#zoom=150′ width = “100%” height=”525″ id=”iFramePdf” #zoom=”200″ frameBorder=”1″></iframe>
<embed src=’@Url.Action(“Index”, “Home”)#zoom=150′ width = “100%” height=”525″ id=”iFramePdf” #zoom=”200″ frameBorder=”1″ type=”application/pdf”/>
<object data=’@Url.Action(“Index”, “Home”)#zoom=150′ width = “100%” height=”525″ id=”iFramePdf” #zoom=”200″ frameBorder=”1″ type=”application/pdf”>
Hope this article will help you.
In our previous article we have learnt basics of MVC , now in this article we will learn how to make simple model In MVC.
- Create New ASP.NET MVC 4 Web Application .
- Select Internet Website as template.
- Select ASP.NET as View Engine
- Right Click on the model -> Add New Item ->Class -> Movies.cs
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AuthorizeCore in MVC
In MVC AuthorizeAttribute Class is another cool feature that makes it easy to add authentication at the Controller level. In AuthorizeAttribute class we have AuthorizeCore function, it specifies that access to a controller or action method is restricted to users who meet the authorization requirement. We can override AuthorizeCore function as per our authorization logic.
When you place the [Authorize] attribute on a Controller’s action method, a couple of calls get made to the AuthorizeAttribute class at the beginning of each request to your controller to authenticate users. Lately when I was working on a web application I found this multiple calls as an extra overload that even though the user is authorized, AuthorizeCore got executed.
So to avoid this multiple calls, I found one of the property in HttpContext which is SkipAuthorization. SkipAuthorization is a boolean property, you can set this as true once the user is authorized. The below code snippet will give you the brief idea.
protected override bool AuthorizeCore(HttpContextBase httpContext)
if (httpContext.SkipAuthorization) return true; // hack to avoid multiple call to the method
if (!authorized) //if user is not authorize
if (authorized) //if user is authorize
httpContext.SkipAuthorization = true;
In this article you will learn some basic concepts of MVC Architecture.
So what is MVC ?
- An Architectural design principle that separates the components of a Web Application.
- This separation gives you more control over the individual parts of the application , which lets you more easily develop , modify and test them.
- Three main components : The Model, The View, The Controller.
Models, Views, and Controllers
- Model — Model holds application data , data access logic.
- View — Markup and content that is returned to the browser
- Controller—Fires off some logic in response to a web browser request it listens incoming request from the browser manipulate the model data prepare the view to display in response to the web browser.
Continue reading “MVC Basics for Beginners”