Asp.net And Vb.net Web Programming Pdf
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- Vb Net Tutorial
- How to create PDF .NET Apps in a few steps:
- How to create PDF .NET Apps in a few steps:
- ASP.NET Books
It will get you off to a fast start whether or not you have done any web programming. It will teach you the skills you need to develop bullet-proof web applications on the job. This is a fantastic book that gets you building powerful web applications with ASP.
Vb Net Tutorial
NET is a new and powerful technology for writing dynamic web pages. ASP is a relative old-timer on the web computing circuit and has provided a sturdy, fast, and effective way of creative dynamic web pages for more than five years now.
NET is the new kid on the block and is a whole suite of technologies designed by Microsoft with the aim of revolutionizing the way in which all programming development is conducted in the future and the way companies carry out business. Therefore, as a conjunction of the two, ASP. NET is a way of creating dynamic web pages while making use of the innovations present in. The first great thing to note about ASP.
All you need is a little bit of HTML knowledge for building your own web pages, and you're away! NET is a more powerful technology than its older namesake, not only can it produce dynamic web pages, but it can tailor them to the browser you are using.
Better still, it comes complete with a wide range of predefined controls ready for you to use in your own projects, saving you time, and making you more productive. So, what can you do with ASP. It'd probably be quicker to list what you can't! One of the most eye-catching new innovations is the way you can create your applications, so you ca write them in VB.
NET, Jscript, C a new Java-like language from Microsoft , or even a combination of them all — you'll choose the best language for the job, or whichever language compliments your skills best.
Within your applications ASP. NET allows you to customise pages for a particular user, keep track of user's details as they move through a website and store information about them in a database of self-describing XML file. You can alter the layout of pages at the click of a button, add and remove files from your machines if you have the appropriate permissions and even draw on the logic of other applications without having to download them first.
In this first chapter we'll be mainly concerned with ASP. NET's installation process. We'll start with a quick introduction to the world of web servers, dynamic web pages, and a little bit about what ASP. NET is, but what we really aim to achieve is to get you running a fully functional web server, with a fully functional ASP.
NET installation. By the end of the chapter you'll have created a short ASP. NET are working as intended. Don't worry we'll have a look at some of the most common pitfalls encountered, just in case things don't go as planned!
If you surf around the Internet today, you'll see that there are lots of static web pages out there. What do we mean by a static web page? Essentially, it's a page whose content consists of some HTML code that was typed directly into a text editor and saved as an. Thus, the author of the page has already completely determined the exact content of the page, in HTML, at some time before any user visits the page.
Static web pages are often quite easy to spot; sometimes you can pick them out by just looking at the content of the page. The content text, images, hyperlinks, etc. For example, suppose we create a page called Welcome. Whenever any client comes to our site to view this page, it will look like this.
The content of the page was determined before the request was made — at the time the webmaster saved the. Ok, so let's think for a moment about how a static, pure-HTML page finds its way onto a client browser:.
We can even spruce up the presentation and usability of such pages by adding more HTML to create frames and tables. However, there's only so much we can achieve by writing pure HTML, precisely because their content is completely determined before the page is ever requested. For example, suppose we want to enhance our Welcome page — so that it displays the current time or a special message that is personalized for each user.
These are simple ambitions, but they are impossible to achieve using HTML alone. If you're not convinced, try writing a piece of HTML for a web page that displays the current time, like this:. As you type in the HTML, you'll soon realize the problem — you know that the user will request the page sometime, but you don't know what the time will be when they do so! Hard-coding the time into your HTML will result in a page that will lways claim that the time is the same and will almost always display the wrong time.
In other words, trying to write pure HTML for a web page that displays the time — but you can't be sure of the exact time that the web page should display until the time the page is requested. It can't be done using HTML alone. Also HTML offers no features for personalizing your web pages, each web page that is served is the same for every user.
There's also no security with HTML, the code is there for everybody to view, and there's nothing to stop you from copying somebody else's HTML code and using it in your own web page. Static pages might be very fast, as quick as copying a small file over a network, but they are quite limited without any dynamic features. Since we can't create our page by saving our hard-coded HTML into a file before the page is requested, what we need is a way to generate the HTML after the page is requested.
There are two ways of doing this; we'll look at them both now. Before we go any further, we need to make sure everybody is up to speed on the terminology we've introduced here. A web server is a piece of software that manages web pages and makes them available to 'client' browsers — via a local network or over the Internet. In the case of the Internet, the web server and browser are usually on two different machines, possibly many miles apart.
However, in a more local situation, we might set up a machine that runs the web server software, and then use a browser on the same machine to look at its web pages. It makes no difference whether we access a remote web server that is, a web server on a different machine to our browser application or a local one web server and browser on the same machine , since the web server's function — to make web pages available to all — remains unchanged.
It might well be that you are the only person with access to our web server on your own machine, as would be case if you were running a web server from our home machine. Nevertheless, the principles remain the same. This is because it is the only web server that will run ASP. The web server comes as part of the installation for both Windows and Windows XP. IIS version 5. We'll look at how we go about installing IIS shortly; however first let's take a look at its role in helping to create dynamic web pages.
To fully understand the nature of dynamic web pages, we first need to look at the limitations of what we can and can't do with a static web page. Even though we're only going to be creating dynamic web pages in this book using one of these methods, you need to be aware of the two different ways of doing it, as the underlying principles for both feature heavily throughout the book.
In the client-side model, modules or plug-ins attached to the browser do all the work of creating dynamic pages. The HTML code is typically sent to the browser along with a separate file containing a set of instructions, which is referenced from within the HTML page. However, it is also quite common to find these instructions intermingled with the HTML codes. The browser then uses them to generate pure HTML for the page when the user requests the page — in other words, the page is generated dynamically on request.
This produces a HTML page, which is sent back to the browser. Client-side technologies have fallen out of favor in recent times, as they take a long time to download, especially if we have to download a second file with a separate set of instructions.
In some cases, we might have to download several files of separate instructions. A second drawback is that each browser interprets these instructions in different ways, so we have no way of guaranteeing that if Internet Explorer understands them, whether Netscape Navigator or Opera will. Also all code for client-side scripting is available to everybody, which can be undesirable.
Again this set of instructions will be used to generate HTML for the page at the time the user requests the page. Once again, the page is generated dynamically upon request.
Our set of five steps once more becomes six, however, with the subtle twist regarding where the processing of instructions is done:. The twist is that all the processing is done on the server, before the page is sent back to the browser.
One of the key advantages this has over the client-side model is that only the HTML code describing the finished page is actually sent to the browser.
This means that our page's logic is hidden away on the server, and that we can safely assume that most browsers should be able to at least have a go at displaying it. NET as you might have gathered, follows the server-side model. In fact either process of serving a dynamic web page is only slightly different from the process of serving a static web page — there's just one extra step involved Step 5 on the client or Step 4 on the server.
But in both cases this difference is crucial — the HTML that defines the web page is not generated until after the web page has been requested.
For example, we can use either technique to write a set of instructions for creating a page that displays the current time:.
In this case, we can compose most of the page using pure HTML. It's just that we can't hard-code the current time. Instead, we can write a special code which would replace the highlighted line here that instructs the web server to generate that bit of HTML during Step 5 on the client, or Step 4 on the server, at the time the page is requested. We'll return to this example later in the chapter, and we'll see how to write the highlighted instruction using ASP.
Now we're going to look at the various different technologies, including ASP. NET and see how the logic is supported in each. We just seen that there are also two distinct models for providing dynamic content. NET falls into the server-side model. However, we're going to look at what we consider to be the most important technologies in both models, as we will reference some of the client-side models in later chapters, particularly if we mention old style ASP.
Not all of the technologies work in the same way as ASP. NET, but they all allow the user to achieve the same end-result — that of dynamic web applications. If ASP. NET is not an ideal solution to your problems, then you might want to consider these following technologies, taking into account the following questions:. We're now going to give a quick overview of what each one does, and in doing so, try to give you an idea of where ASP.
Each of these technologies relies on a module or plug-in built into the browser to process the instructions we talked about earlier. The client-side technologies are a mishmash of scripting languages, controls, and fully fledged programming languages.
How to create PDF .NET Apps in a few steps:
Vb Net Tutorial Whether you're just starting or an experienced professional, Microsoft Learn's hands-on approach helps you arrive at your goals faster, with more confidence and at your own pace for free. GitHub issue classification: demonstrates how to apply a multiclass classification task using ML. Entity Framework Core. NET Framework environment. NET Introduction If you have ever wanted your application to run constantly in the background while the machine is busy doing something else, one way to do it was to run it continuously or at a regular interval with the use of windows scheduler. Coding a VB.
How to create PDF .NET Apps in a few steps:
To build effective and attractive database-driven websites, you need two things: a solid and fast framework to run your web pages on and a rich and extensive environment to create and program these web pages. With ASP. NET 4.
NET is a new and powerful technology for writing dynamic web pages. ASP is a relative old-timer on the web computing circuit and has provided a sturdy, fast, and effective way of creative dynamic web pages for more than five years now. NET is the new kid on the block and is a whole suite of technologies designed by Microsoft with the aim of revolutionizing the way in which all programming development is conducted in the future and the way companies carry out business. Therefore, as a conjunction of the two, ASP. NET is a way of creating dynamic web pages while making use of the innovations present in.
NET Articles,Gridview articles,code examples of asp. If you enjoyed this post, please support the blog below. It's FREE! Get the latest Asp. How is it possible??
In the recent period more and more people are interested in taking asp net web programming courses and tutorials. The course includes tutorials that is adjusted for beginner level users which make it easy to learn and actually quite fun and entertaining. Learning has never been so simple and easy.
What Is A Static Web Page?
Прошу прощения, - сказал Беккер, поворачиваясь, чтобы уйти. Парень загородил ему дорогу. - Подними. Беккер заморгал от неожиданности. Дело принимало дурной оборот.
Правда открылась со всей очевидностью: Хейл столкнул Чатрукьяна. Нетвердой походкой Сьюзан подошла к главному выходу- двери, через которую она вошла сюда несколько часов. Отчаянное нажатие на кнопки неосвещенной панели ничего не дало: массивная дверь не поддалась. Они в ловушке, шифровалка превратилась в узилище. Купол здания, похожий на спутник, находился в ста девяти ярдах от основного здания АНБ, и попасть туда можно было только через главный вход. Поскольку в шифровалке имелось автономное энергоснабжение, на главный распределительный щит, наверное, даже не поступил сигнал, что здесь произошла авария. - Основное энергоснабжение вырубилось, - сказал Стратмор, возникший за спиной Сьюзан.
До выхода было метров тридцать. - Я оплачу тебе билет до дома, если… - Молчите, - сказала Меган с кривой улыбкой. - Я думаю, я поняла, что вам от меня. - Она наклонилась и принялась рыться в сумке. Беккер был на седьмом небе.
Камера, подрагивая, словно наехала на него, и кадр не сразу оказался в фокусе. А Смит тем временем безучастно продолжал свои комментарии: - Как вы видите, у Танкадо случился мгновенный сердечный приступ. Сьюзан стало дурно оттого, что она увидела. Танкадо прижал изуродованную руку к груди с выражением недоумения и ужаса на лице.
- Какие-нибудь проблемы с диагностикой. - Ничего серьезного, - ответила Сьюзан, хотя вовсе не была в этом уверена. Следопыт задерживается. Она подумала, не ошиблась ли где-то. Начала просматривать длинные строки символов на экране, пытаясь найти то, что вызвало задержку.
Изящные европейские черты лица и карие глаза делали Сьюзан похожей на модель, рекламирующую косметику Эсте Лаудер. Худоба и неловкость подростка бесследно исчезли. С годами она приобрела гибкость и грацию.