Hello friends, I hope you all are doing great. In today's tutorial, we will have a look at URL Routing in ASP.NET MVC. It's the 8th tutorial in this ASP.NET MVC series. Today's tutorial is on a new concept in asp.net and it's essential to understand URL routing before going any further.
URL Routing is actually a part of core ASP.NET but MVC applications also use it. URL Routing is implemented by System.Web.Routing and ASP.NET MVC uses System.Web.Routing. So, let's have a look at what's URL Routing in ASP.NET MVC:
URL Routing in ASP.NET MVC
URL Routing is used for directing the HTTP request (generated by the user) to the respective controller in ASP.NET MVC.
Whenever a user types some url in the browser and hit enter then an HTTP request is ge ...
Hello friends, I hope you all are doing great. In today's tutorial, we will have a look at detailed Introduction to Entity Framework Core. It's our 16th tutorial in ASP.NET Core series. So far, we have covered the the MVC architecture and few concepts related to object oriented programming and now we are ready to get our hands on Databases.
So, today we will cover data handling in detail, which is done by Entity Framework Core in .NET Core applications. So, let's first understand this Entity Framework Core:
Introduction to Entity Framework Core
Entity Framework Core ( normally called EF Core ), designed by Microsoft, is an open source, flexible, extensible, lightweight and cross-platform framework, whic ...
Hello everyone, I hope you all are doing great. Today, I am going to start this new series on ASP.NET Core and it's our first tutorial in this series. I will start from basics and will slowly move towards complex concepts. So, if you haven't worked on ASP.NET then you don't need to worry about that but you must have some basic knowledge of C# and object oriented programming.
I will use Visual Studio 2019 for these tutorials, it's community version is free to use and I will use C# language for developing ASP.NET Core web applications. So, let's first have a look at what is ASP.NET Core:
Introduction to ASP.NET Core
ASP.NET Core (originally deemed as ASP.NET xNext & was going to named as ASP.NET 5) is ...
Hello friends, I hope you all are doing great. In today's tutorial, we will have a look at what is DbContext Class in Entity Framework Core. It's our 17th tutorial in ASP.NET Core series. In our previous tutorial, we have discussed Entity Framework Core in detail and have also installed it in our web application.
So, now we need understand how to work with Entity Framework Core and for that we have to look at its classes & functions. So, today we will discuss one of its class named DBContext in detail:
DbContext Class in Entity Framework Core
EF Core contains an important class named DbContext, which is mainly responsible for communication between Database & software objects.
We communicate with our database using this DbContext class ...
Hello friends, I hope you all are doing great. In today's tutorial, we will discuss Validation in ASP.NET MVC. It's our 14th tutorial in ASP.NET MVC series. In our previous tutorial, we have seen Model Binding in ASP.NET MVC and you have seen we have created a View for our Model class.
In today's tutorial, we are gonna add some validations on the data provided by the users in those Text box fields. We will place some constraints like the age must be above 13 or the characters of name must be between 4 to 20. So, let's have a look at How to deal with Validation in ASP.NET MVC:
Validation in ASP.NET MVC
Validation uses built-in attribute of ASP.NET called DataAnnotations and is used to validate inputs provided by the user.
Validation is a very ...
Hello friends, I hope you all are doing great. In today's tutorial, we are going to have a look at what are Middleware in ASP.NET Core. It's our 3rd tutorial in ASP.NET Core series. In order to understand the Middleware, we have to open the Startup.cs file present in Solution Explorer.
In our previous lecture, we have discussed the Code in Startup.cs and I have told you thhat we will discuss the Configure method later, so now we have to understand that code first. So, first let's define middleware components and then have a look at that code:
Middleware in ASP.NET Core
Middleware in ASP.NET Core are simple software components used to control HTTP requests and handle both incoming requests as well as outgoing responses.
Each middleware is a se ...
Hello friends, I hope you all are doing great. In today's tutorial, we are gonna have a look at Filters in ASP.NET MVC. It's our 9th tutorial in ASP.NET MVC series. It's also a new concept which is essential to discuss as it's used almost in every form submission.
We have already understand Controllers in ASP.NET MVC and we know that Controllers have action methods in it which are directly assigned to respective Views, which are then displayed to the user. But in some cases, we have to place some checks (called Filters) before or after this action method called. So, let's have a look at these Filters in ASP.NET MVC in detail:
Filters in ASP.NET MVC
Filters are attributes which we can use before or after action method called in a Controller.
C ...
Hello friends, I hope you all are doing great. In today's tutorial, we will have a look at Form Validation in ASP.NET Core. It's our 15th tutorial in ASP.NET Core series. In our previous lecture, we have created a Registration Form for our engineering website. But we haven't added any validations on the submitted data.
So, even if users don't fill any boxes and just hit the Register Button, a new user will be created without any personal info. So, today we will place some checks on these text boxes to validate the user submitted data. So, let's get started with it:
Form Validation in ASP.NET Core
Validations in ASP.NET Core are available in the form of attributes & Tag Helpers.
Validation Attributes are applied on Properties in Model clas ...
Hello friends, I hope you all are doing great. In today's tutorial, we are gonna have a look at What are Views in ASP.NET MVC. It's our third tutorial in ASP .NET MVC series and in our first tutorial, we have seen How to Setup Your First Project in ASP.NET MVC and in our second tutorial, we have seen What is Model in ASP.NET MVC and I have told you about Views as well in previous tutorial. So, now we are gonna have a look at it in detail:
Views in ASP.NET MVC
In MVC Framework, we don't have pages or path to some html file as in php.
Instead, We have to use Views in ASP.NET MVC for front end designing.
We can use Html, Css, Javascript, Jquery or any other front end language in Views.
There are two t ...
Hello friends, I hope you all are having fun with your lives. In today's tutorial, we are gonna have a look at Action Selectors in ASP.NET MVC. It's the 11th tutorial in ASP.NET MVC series and if you have covered so far then that means you really want to learn this language. Action Selectors are also new for you as we haven't discussed them yet but they are not that difficult to understand.
Action Selectors are built-in attributes of ASP.NET which are directly applied to action methods of Controllers. We use Action Selectors to influence on Controller's action methods. In simple words, we use Action Selectors to guide URL Routers in selection of correct action method. Let's have a detailed overview of Action Selectors:
Action Selectors in ASP.NET ...
