Introduction to Web Application
The web applications run on the web server, which is not like the computer-based software programs which run locally on the OS of the device. The web applications run on the browser. It is interactive software that provides services to the users through an Interactive GUI interface that runs on the web browser. The website is a collection of linked web pages that are made to provide information to users. Dot net provides us the platform to build web applications as well as websites. And we can build the console applications as well as the desktop applications. The Windows form, WCF, WPF are used for making windows-based desktop applications. And the web-based controls and various others help in developing the web applications. Naresh I Technologies is the number one computer training institute in Hyderabad, and it is among the top five computer training institutes in India. Contact us anytime for your complete Dot Net training.
ASP.NET Introduction
ASP pages used to have the design as well as the code or the HTML as well as the C# or Visual Basic code on the same page. However, this was a little complex to understand. And hence Microsoft came up with the ASP.NET that separated the markup code and the C# or basic code. We now can write the HTML code with ASP.NET controls on one page. And each of the methods and classes containing it is coded in code behind. It allows us to take classes of all types, interfaces, web services, entity framework models, allow the uses of LINQ, ADO.NET, caters to us the new identity and authentication classes in the form of System. Identity and various classes are contained in this namespace, and the old namespace for ensuring Authentication and Authorization is no more applicable. Below we have mentioned all the popular namespaces and their applicability.
Framework Class Library
The Framework class library is the collection of classes and interfaces. Various classes are as below :
System : This contains the data types, arrays and methods, and string values.
Then we have the System.Data, System.Data.Oldeb, System.Data.SqlClient, System.Data.SQlTypes.
And then we have the classes that contain the methods for accessing, read, and write files. The classes are the System.IO, System.DirectoryServices, System.IO. IsolatedStorage.
Then we have the namespaces that cover the methods for debugging and tracing the execution of the application.
Then we have the namespaces for establishing the communication and making the peer-to-peer applications, and that is the System.net and System.net.socket.
Then we have the namespaces that cover the windows user interface components that we use in the Windows application form. The classes are System.windows.form and the System.windows.form.design
And then we have the ASP.NET web application controls which run runs over the web. The classes are as below: System.Web.Services.Description, System.Web.Services, System.Web.Services.Discovery, System.Web.Services.Configuration, System.Web.Services.Protocols.
Then we have the security, and these are covered in the namespaces like System. Security, System.Security.Permissions, System.Security.Policy, System.WebSecurity, System.Security.Cryptography
Then we have the namespaces that cover the XMLfiles that are covered by the namespaces like System.Xml, System.Xml.Schema, System.Xml.Serialization, System.Xml.XPath, System.Xml.Xsl
And some other concepts that you need to know at the start are as below :
Common Language Runtime
It’s the runtime system that Microsoft has provided for running various .net codes written in various programming languages supported by the CLR or the common language runtime. It’s the runtime system for the .net environment. Every programming language has some runtime environment. And the one provided by Microsoft can execute code in various languages like C#, F#, and Visual C++. Out of these the F# is the functional programming language, and the C# is the Object-oriented programming language. Visual Basic is also supported. The Visual basic and the Visual C++ are the two GUI-based programming language versions of the basic and Borland C++, that are used to run in the non-GUI environment.
Visual Studio supports the HTML, JS, CSS, and JSON editors. You get the power of LESS, SASS, PHP, C#, and Python with ASP.NET. All of these powerful languages are supported and you can switch from one language to another and the project type easily. The ASP.NET core is the new revolution, and it is platform-independent. Remember you can run the Dot net technology only on Windows. However, you can run the Dot net core on any operating system. And the editor you are going to use is the Dot net core.
Common Language Interface
The Microsoft .net supports the various programming languages like C#, F#, Visual C++, Visual Basic that the Common Language Interface supports. It’s the common language Interface that makes this possible.
ASP.NET Programming – Basics
ASP.NET programming revolves around the C# and the Visual Basic. And you can make the same project in C# as well as the Visual Basic. You need to learn all the practical details of these programming languages hence. Please keep that in mind. Most of the features are quite common to all the programming languages and the fight goes on between the programming just like Apple, Microsoft, Amazon, and Google. If you will have a look at these four you will find that the one that comes in one of these companies is achieved by the other companies in no time whatsoever. We need to have a look at the Multithreading, Collections, Generics, OOPS concepts in all the programming languages. Likewise Looping, conditions, data types, functions, classes, and elaborate the OOPS concepts like Inheritance, Abstraction, Encapsulation, Polymorphism, aggregation, generalization, abstraction, and interfaces are common to all OOPS programming languages. The concepts remain the same, and the only change is in the syntax. Also, the data structure and databases are common to all the programming languages, and you need to learn algorithms for learning the data structure, and you need to learn the database basic concepts for implementing or processes like establishing the connection with the database in all the programming language. There is a configuration involved in all the programming languages. File handling is common in all programming languages. Web services and API programming is common to all programming languages.
And when we talk of your video streaming, we need to only change the syntax in each of the programming languages and the concept remains the same. Most of the programmers rely on YouTube, though So many options are available, and you are free to select any of the technology for video streaming, storage, and so on. With AWS, Azure, and GCP the video storage and processing is no more a problem. And we can now even analyze the video with the help of the AWS AI services. Below we look into some of the features that are provided with the Dot net technology.
ASP.NET Page Navigation Options
The page navigation option is provided by the ASP.NET page navigation options where you can add the page numbers, and help the users or the audiences of the web application or the website or the windows form application or based on WPF. Pagination is one of the very important tools where you can present a multipage document.
ASP.NET Programming – Server Controls
These are the primary controls in the ASP.NET. We have a long list of web server control. And we have the user-defined server control. We can make our control as well in ASP.NET. And in the process, we can combine any number of controls to form the composite control. And we can figure out their functioning on our requirements.
ASP.NET Programming – Validation Controls
The validation controls help in checking the input based on the pattern that we set through the regular expressions. There are options like control to validate, regular expressions, autopostback set to false, and so on.
ASP.NET Programming – Navigation Controls
The navigation controls are like TreeView, menu, and SiteMapPath. And these controls are meant for navigation purposes.
ASP.NET Programming with ADO.NET
ADO.NET deals with database programming.
ADO.NET LINQ – Language Integrated Query
The ADO.NET LINQ is the database programming in ASP.NET with the help of the language integrated query or the LINQ. And this code remains the same whatever is the Data Source.
ADO.NET Entity Framework and Entity Data Model
These comprise of three types code first, database, and model, and is the database programming based on the entity framework. It’s the most preferred way of database programming together with the LINQ programming,
ASP.NET Data Binding Controls
These are the controls that are tied to the data source.
ASP.NET Configuration
This is the configuration file for the ASP.net and contains all the configuration for the web application, and you can search for the web.config file for finding the configuration file. The details like connection string, system configuration,etc.are present in the configuration file.
ASP.NET Error Handling and Debugging
The error handling ASP.NET deals with a try, catch, and finally. The code to be tested for error is inside the try and the type of error to be catch is inside the catch. And what needs to be done finally is inside the finally. All types of errors can be caught, and exceptions can be initiated so that an error does not paralyze the whole project, and the projects keep running though we come to know about the errors.
ASP.Net Web User Control
These are the controls that we make ourselves or what we know as user-defined controls. The user control needs to be registered on the page where you are going to use it.
Working with Master Pages
The master page Is the page layout that we can make common to more than one page. So, headers, footers, and the sidebars plus whatever remains the same on all the pages that select the master page. It plays an important role in designing for sure.
Working with Themes and Skins
These are the combination of skin files, images and the CSS files that make sure how the website or the web application will look like. The background color, control properties, header, footer, font size, family, color, paragraph, etc all are configured with the help of the themes. Technologies like HTML 5, Bootstrap, jQuery, CSS and Material UI are used these days for designing themes. However, now the front-end Single page applications like Angular, React and Vue.js are becoming more popular.
ASP.NET – State Management
The state management deals with the client-side and the server-side state management. The client-side state-managed is handled by View state, a hidden field, and the Query string, and the server-side state management is handled by the Application state and the Session state.
ASP.NET Caching
ASP.NET provides the cache facility for the static data. But this facility does not work with the dynamic data.
ASP.NET Tracing
This helps the developers view the diagnostic information during the runtime, and see how the ASP.NET page gets executed.
ASP.Net – SOAP & XML Web Services
The SOAP or the simple object access protocol helps in retrieving the information from a remote machine in the XML formats. And these are used in web services which we know as the SOAP and XML-based Web services. XML is the format in which the data is retrieved.
Introduction to Security in ASP.NET, Authentication and Authorization
ASP.NET security is an important feature and we have already discussed that above. And we implement authentication and authorization now as follows. The old process does not work anymore. And since 2013, the ASP.NET Identity is more common now. And it is now what decides the authentication and authorization.
E-mail Server
We have the Email and SMS server in ASP.NET and these are the web applications, which send the email to the destination and the SMS sends the SMS to the mobiles. However, these days the messages through the messengers like Facebook, WhatsApp are more common though we can build our chatbots as well. And the technology used is in plenty. Though Signal R and the socket programming plays an important role in making the peer-to-peer network.
Introduction to Mobile Programming
Mobile programming no longerexists in the dot net world. Though you can make the iOS application in dot net with the help of Xamarin.
Globalization and Localization
You can build the website and the web application in any language and then make it appear in languages selected by the client. And that we know as globalization and localization.
Personalizing Using Web Parts
Web parts, you can take it as the web user controls, and these are like web form and has a load of controls within it, and that is why we know them as the web parts.
ASP.NET AJAX Extension
AJAX stands for the Asynchronous JavaScript extension. Sometimes we want the control to refresh automatically, and we do not want it to call repeatedly to the server, much like what we do in the single page application. The request is fulfilled asynchronously, and that means in parallel. And that is why we do not have to wait for the page to refresh. ASP.NET has a long list of Ajax toolkits and you need to install it on the Visual Studio toolset. You can build better, faster, and more interactive web applications with the help of Ajax.
Crystal Reports & Microsoft Report Integration into ASP.NET Web Application
Report-making is quite a necessary tool that a web application requires. And the crystal report is the best option that you have with you.
Deployment
You can deploy the ASP.NET web applications, websites, on LOCAL IIS, HostGator, GoDaddy, AWS, Azure, GCP, on docker and scale them to any level with the help of the load balancers over the cloud.
ASP.NET MVC Framework Overview
The MVC, MVVM are very popular front-end options that ASP.NET supports. And the MVC stands for the Model View and controller. And the MVVM is another framework. In MVC the Model contains the database part, the view contains the front-end part and the controller forms the bridge between the View and the models.
ASP.NET New Features
There are so many new features that are now available in ASP.NET.
Various new features in ASP.NET are as below :
- Cross-platform & container support
- Asynchronous via async/await
- High performance
- Dependency Injection
- Multiple environments and development mode
- Unified MVC & Web API frameworks
- CSRF Protection
- “Self-hosted” Web Applications
- Globalization and Localization Action Filters
- Extensible Output Caching
- Swagger OpenAPI
However, the most important new feature that is now the most in-demand in the ASP.NET Full-stack developers with the knowledge of the Single page application like Angular, React, and Vue.js. And this is now most in demand. Though remember you need the knowledge of jQuery, Bootstrap,CSS, and HTML 5 plus the Material UI for working properly with Angular. We have a separate course for Angular 10 with typescript.
And you need the knowledge of MSSQL though now you need to learn new databases as well those from Azure, AWS especially and that includes the NoSQL databases, and the document-based databases. The graph-based database is also now in the market.
Once, you learn all these you are all set to be a full-stack dot net developer
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