NET Tutorial for Beginners. Special thanks bring this tutorial together. .. NET. 1. scretch.info Web applications: These include dynamic and data driven browser. This document provides an overview of many of the new features for scretch.info that are included in scretch.info Framework 4 and in Visual Studio Contents. NET, Visual Studio , Visual Studio , Windows Azure. Source: scretch.info Site (scretch.info scretch.info file contains multiple versions of the project and a PDF file that contains all of the.
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NET that a beginner would require to get started. Audience. This tutorial is prepared for the beginners to help them understand basic scretch.info programming. scretch.info pages can display HTML, collect user input, and interact with Click on Download then scroll down to Express products and click on Visual. Class Summary scretch.info is a framework for developing dynamic web applications. It supports languages like scretch.info, C#, scretch.info, etc.
Step 2: - Select the appropriate ASP. If you look prior to visual studio i. You can't mix both of them in VS So if you start a project with MVC coding style you cannot use webforms and also vice-versa if you start with webforms you can't use MVC. Once you start with MVC you are stuck with it or once you start with Webforms you are stuck with the same.
It continues to offer flexibility in terms of the languages it supports, but instead of a range of simple scripting languages, developers can now choose between several fully-fledged programming languages. Development in ASP. NET requires not only an understanding of HTML and Web design, but also a firm grasp of the concepts of object-oriented programming and development.
NET pages are constructed. NET actually is. NET is a server-side technology for developing Web applications based on the Microsoft. NET is server-side; that is, it runs on the Web server. When a Web browser requests a Web page created with client-side technologies, the Web server simply grabs the files that the browser the client requests and sends them down the line.
The client is entirely responsible for reading the code in the files and interpreting it to display the page on the screen.
Server-side technologies, like ASP. NET, are different. Instead of being interpreted by the client, server-side code for example, the code in an ASP. NET page is interpreted by the Web server.
In the case of ASP. As all processing of ASP. As Figure 1. The server and server-side technology is entirely responsible for processing the dynamic portions of the page. Figure 1. The Web server is responsible for processing the server-side code and presenting the output to the user client.
NET is a technology for developing Web applications. A Web application is just a fancy name for a dynamic Website. Web applications usually but not always store information in a database on the Web server, and allow visitors to the site to access and change that information. Rather than tying you to a specific technology and language, however, ASP. NET lets you write Web applications using a variety of familiar programming languages.
Finally, ASP. NET is based on the Microsoft. NET Framework collects all the technologies needed for building Windows applications, Web applications, and Web Services into a single package with a set of more than twenty programming languages. To develop Websites with ASP. NET so good? Compared with other options for building Web applications, ASP. NET Websites.
NET pages are compiled, not interpreted. Instead of reading and interpreting your code every time a dynamic page is requested, ASP. NET compiles dynamic pages into efficient binary files that the server can execute very quickly. NET has full access to the functionality of the.
Support for XML, Web Services, database interaction, email, regular expressions, and many other technologies are built right into. NET, which saves you from having to reinvent the wheel.
With all these advantages, ASP. NET has relatively few downsides. In fact, only two come to mind: ASP. NET is a Microsoft technology. NET Website. Serious ASP. Still with me? What Do I Need? Open source initiatives are underway to produce versions of ASP. NET that will run on other operating systems, such as Linux; however, these are not expected to be available in stable form for a while. NET requires the real deal. Other than that, all you need is enough disk space to install the Web server Internet Information Services 18 MB , the.
NET; MB , and a text editor. However, if you get serious about ASP. A Modern Web Browser: You can use any modern, standards-compliant browser to test your work. Installing the. The answer is: yes. To see whether you have IIS installed and running, simply navigate to your Administrative Tools menu and check to see if Internet Information Services is an option.
Users of Windows Professional will find the Administrative Tools in their Control Panels, while XP and Server family users also have shortcuts in their start menus. The list of components will become visible within a few seconds.
Click Next. You can check that IIS has installed correctly by seeing if you can find it within the Administrative Tools menu. You are now ready to begin hosting Web applications. NET applications in order that they may be uploaded to your external Web hosting provider later.
Installing Internet Explorer As a Windows user, you have Internet Explorer installed by default, but I recommend you run at least version 5. You can check your version by selecting About Internet Explorer from the Help menu. If your version of Internet Explorer is earlier than 5. Remember, although ASP.
NET functionality works best with the latest version. NET pages, while the.
Once the. If not, you will need to download the. NET applications. To develop. NET applications, you also need to install the software development kit, which includes necessary tools along with samples and documentation.
Be aware that the. Warning Installing the. Download and Install the Redistributable The best method of acquiring the. NET Framework is to download and install it directly from the Web. To accomplish this, simply follow the steps outlined below: Go to the ASP. Click the Download. Remember, we will install the redistributable first, then we will install the SDK. The link will advance you to a download page. Choose the language version of the install you want, and click Download.
When prompted, save the file to a local directory by choosing Save. After the download is complete, double-click the executable to begin the installation. Follow the steps presented by the. NET Setup Wizard until installation completes. Choose the language version of the install you want to use and click Download, as you did to download the redistributable. When prompted to do so, save the file to a local directory by choosing Save.
Before you do, I strongly recommend closing all other programs to ensure the install proceeds smoothly. Follow the steps outlined by the.
NET installed correctly Determining where files are located on the Web server Using localhost How to start and stop the Web server How to create a new virtual directory and modify its properties Determining whether ASP. The first task is to make sure that ASP. Although, logically, ASP. Right-click Default Web Site and select Properties. Navigate to the Documents tab. If default. NET was installed correctly. Another way to check whether ASP. Select the Home Directory tab, and choose Configuration.
If the. You may know that a DLL is a Dynamically Linked Library, which is essentially a self-contained code module that any number of applications can draw on. When a Web server hosts a dynamic Website, page requests must be processed by program code running on the server before the resultant HTML can be sent back to the requesting browser the client.
This approach is advantageous because DLLs are much more efficient, and require far less resources and memory than executables. IIS uses the file extension of a requested page to determine which DLL should process the request according to the mappings shown in the screenshot above. So, we can see that pages ending in. OK, enough of the tech-talk. Type the following command all on one line to install ASP. NET Framework you have installed. Once ASP. NET installed correctly. Now that you have ASP.
You can readily set IIS to look for Web applications within any folder of your choice, including the My Documents folder or even a network share. Note that, while several of these folders have the regular Explorer folder icon in the IIS view, others have a special Web application icon, indicating that these folders contain the pages and other items for a particular Web application. These special folders are what IIS calls Virtual Directories, and, in fact, they do not have to share the name of the physical folder to which they map.
Because ASP. For this reason, ASP. This localhost name is, in fact, equivalent to the so-called loopback IP address, If you know them, you can also use the name of your server or the real IP address of your machine to the same effect. Some programs, like Kazaa, automatically stop IIS upon launch, because of potential security vulnerabilities.
The Play, Stop, and Pause icons will become visible. NET framework internally. So having different templates has lead to lot of confusion among developers. Many developers have started thinking ASP. NET template i. So when you click on "ASP. NET Web application" you will see all the templates under one umbrella as shown below. Most probably the checkbox will get disabled if you select the MVC template. As this is our first MVC project we do not want to get involved in to Authentication and Authorization.
In Day 3 we are going to cover Authentication in more details. One of the benefits of MVC is "Unit" test. Because you do not have behind code and controllers have become simple classes you can unit test controllers very easily. But for now we will keep this option unselected as our main intention is to display hello world. Let's spend some time in understanding the solution created. The first thing you will notice is that there are lot of folders created, see the below figure.
The most important from these folders is the "View" , "Model" and "Controllers" folder. MVC architecture is divided in to three sections model, view and controller. So the first hit comes to the controller , he creates the object of model and view and sends the final response to the end user. Model In this folder you will add model classes. Models are simple. NET classes which provides data and probably also contain validations. So in this folder you will add Customer class, Supplier class etc.
Controller In this folder you will add controller and controllers can have actions. This guy is responsible for taking the request from the end user, invoking the appropriate actions, creating object of the model and then tieing up the view and model together to send the results as response.
You do not need to worry about this folder at this moment we will be discussing about each objects later. For example routing is explained in MVC day 2 , bundling is explained in Day 5 and so on. So relax and do not think about this folder at this moment.
Content This folder has CSS Cascading style sheet which gives a uniform look and feel for your project. So this folder is created when you store data in files.
Fonts In case you fonts which you are using in your web application you can put them here. Step 3: - Add Controller The next step is to add the controller. Go to the controllers folder , right on click and click the controller menu as shown in the below figure.
The next screen which comes up is to select "Scaffold" templates. CRUD stands for create, read, update and delete. But at this moment we are learning MVC so selecting Scaffolding or readymade code is not a good option.
So select MVC 5 Controller empty option as shown in the below figure. But do not delete the word controller. So do not delete this word. Once the controller class is created as shown in the below figure. Add a action to it "SayHello" as shown in the below figure. One controller can have multiple actions. But when the end user request's the controller and action we need to invoke a view. Now in your folders section you should see a folder created with the name of the controller i.
Right click on the "FirstMVC" folder and add a view. Give a nice name , do not choose any kind of template for now as we want to keep it simple so select the "Empty withoutmodel ". In the body just type something like as we have done in the below code.
It's time to connect the view with the controller. So in the "SayHello" action in the view type your view name as shown in the below code. Now relax for 30 seconds and enjoy your first program. Congrats to make it till here. Beware of this common error In case you are getting the below common error do not panic you need to check something more. The error says that the view i. The first hit comes to the controller which will load your business objects or model and you would like to transfer these objects to the view to display them.
Lab 2: Passing data between controllers and views The controller gets the first hit and loads the model. Most of the time we would like to pass the model to the view for display purposes. As an ASP. NET session management object.