OJ Develops

This post is a step-by-step guide on integrating Facebook login with an ASP.NET MVC Web Application. We will start from scratch and end with an application supporting Facebook login.

A while back I blogged about Using JQuery AJAX GET with ASP.NET MVC JsonResult . This time, we will be talking about using AngularJS for making GET and POST methods using the $http service.

In the last post I gave an introduction to dependency injection , where I described what it is, how it can be achieved, and the motivation behind it. We left off by providing an example in an ASP.NET MVC controller, where we manually "newed up" dependencies inside the constructor of a controller. In this post we will take a look at dependency injection frameworks and see how they can help us manage dependencies.

The concept of dependency injection has been around for a long time. But now that dependency injection is baked into ASP.NET Core 1.0, I thought it would be a good time to write about what it is and why and how we can take advantage of it. This post is part 1 of a two-part series on dependency injection. Click here to go to part two.

Whenever ASP.NET MVC receives an HTTP request, the request goes through code in the MVC framework before it reaches our controller actions. And then, after we return from our controller, it also goes through framework code before an HTTP response is emitted. The framework code that is involved is typically called the "pipeline". In this post we will talk about how we can insert our own custom code into the pipeline. This is achieved by creating special classes called filters.

Protection against CSRF (use of AntiForgery tokens) is supported in both the ASP.NET MVC and AngularJS frameworks. However, they have different implementations. What this means is that the default implementation of ASP.NET MVC for AntiForgery tokens will not work out-of-the box on an AngularJS front-end. In this post we will look at this in more detail and come up with a solution to the problem.

One common pattern we see in ASP.NET MVC controller actions is a conditional check for ModelState.IsValid , with different branches getting executed based on whether the result is true or false . The ModelState captures errors arising from data annotations such as Required and StringLength . When there are custom validations that cannot be captured using data annotations, what usually happens is that these validations are checked in the success block of ModelState.IsValid . In this post we are going to talk about how to integrate custom validation into ModelState .

Cross-site Request Forgery (CSRF or XSRF) is a type of cyber attack wherein an attacker makes an HTTP request on a user's behalf without the user's knowledge or consent. If successful, a significant amount of damage can be done, depending on the nature of the request. This kind of attack can be prevented by using antiforgery tokens. In this post, we will talk about how we can prevent CSRF attacks in our ASP.NET MVC applications.

In a previous post we talked about creating custom html helpers . The implementation there involved customizing helpers that already existed in the ASP.NET MVC framework. In this post we will talk about creating our own helpers from scratch. This will allow us to create helpers for any kind of html element and will also provide flexibility on the element building process.

HTML helper methods are used in Razor views to generate HTML markup in a strongly-typed, C-sharpy way. An example is @Html.LabelFor(m => m.Name) , which is used in a strongly-typed view whose model has a Name property. This will generate a label element with the appropriate display name. In this post we will learn how to create a custom HTML helper.

There is no doubt that JavaScript MVC / MVVM frameworks such as AngularJS provide better experiences for both developers and users alike. However, there are some caveats that we should be aware of when using this framework. Specifically, search engines might not be able to read the content in our applications if we are using the data binding features provided by these frameworks. In this post I will compare two scenarios: one using server-side data binding and one using client-side data binding and talk about their SEO implications.

Whenever we start with a new ASP.NET MVC project, the tendency is to use one of the templates offered by Visual Studio. The template goes a long way in getting us started with our project. However one thing that the template does not do is remove the HTTP headers that are related to ASP.NET and MVC. Today we are going to look at those and how and why to remove them.

Sometimes you would like to get the contents of a view and store it in a string rather than render it as HTML. An example of this is if you want to compose HTML emails and you want to harness the power of the ASP.NET MVC infrastructure (which includes layouts, partial views, and models). In this post I will show you how to store rendered View content in a string.

AngularJS is a powerful templating MVC Javascript framework developed by Google. In this post, we will be talking about how to use AngularJS with ASP.NET MVC, particularly with strongly-typed views.

In my current project I ran into the requirement of serializing an object with a DateTime property into Json, specifically through the Json() method of the Controller class. I can't say it serialized pretty well though.

In this post I will show you how to post and access query string values using ASP.NET MVC 3. Short Introduction to QueryStrings A query string is a string that is appended to the end of a URL that follows a specific format.

Hi, in this post I will show how the client can communicate with the server using AJAX. Specifically, the client will be using the JQuery library, the server will be running on ASP.NET MVC, and the HTTP Method will be GET. First off, create an MVC project in Visual Studio. I haven't tested MVC 2, but either MVC 3 or MVC 4 should work.