About Dot Net

About Dot Net If you are an internet user, you may have passed through a term dot net which is actually written as “.net”. It is one of the most important and inevitable features and it is working among us now. It is a software framework for Microsoft Windows Operating System. Some of the products which are released under Microsoft .Net Framework are ASP.NET, which is a software used to build dynamically the web pages and web applications. Dot...

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INSTALL .NET NOW

.NET is an integral part of many applications running on Windows and provides common functionality for those applications to run. This download is for people who need .NET to run an application on their computer. .NET Framework 4 If you are a software developer, or if you need an earlier version of the .NET Framework, visit the .NET Framework: Download page for additional download options...

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.NET Framework Overview

.NET is essentially a system application that runs on Windows. The heart of .NET is the .NET Framework. The most important component of the framework is the CLR as the heart and soul of the .NET architecture. Every application written using the Framework depends on the CLR. Among other things, the CLR provides a common set of data types, acting as a foundation for C#, VB, and all other languages that target the .NET Framework. Because this foundation...

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Visual Basic .NET Database Programming

This simple program shows how to retrieve data from the FinAccounting database using DataReader and Data Commands. When the code in the program is executed, the data in the FinAccounting database is displayed in two textbox controls. We use the SqlDataReader class to read data. The SqlDataReader class is defined in the System.Data.SqlClient namespace. So at the beginning of the program we need to use this class and we do so by adding the...

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VB – ASP.NET Database Programming

Creating a Web Project and Connecting to the DatabaseBefore we can create our Data Access Layer (DAL), we first need to create a web site and setup our database. Start by creating a new file system-based ASP.NET web site. To accomplish this, go to the File menu and choose New Web Site, displaying the New Web Site dialog box. Choose the ASP.NET Web Site template, set the Location drop-down list to File System, choose a folder to place the...

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Differences Between Microsoft Visual Basic .NET and Microsoft Visual C# .NET

Syntactically, Visual Basic .NET and Visual C# .NET are two different languages, just as Visual Basic, Visual C, and Visual C++ are different languages. Visual C# .NET looks more familiar to Visual C, Visual C++, and Java programmers, and Visual Basic .NET looks more familiar to Visual Basic developers. The biggest differences between the languages fall into the following categories:Case sensitivity Variable declaration and assignment Data types Statement termination Statement blocks Use of () vs. [] Operators Conditional statements Error handling Overflow checking Parameter passing Late binding Handling unmanaged code Differences...

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Server Sockets and Listeners

 Server Sockets and Listeners We were able to contact the NIST server because it was already listening.  If we want to be able to set up a network connection entirely on our own, say between two students in this class, then both computers will have to create sockets, and one will have to be “listening”.   If  this is done at a low level,  using methods of the Socket class, it requires a basic knowledge of threads.  Here is the reason, which can be explained in language-independent terms.  What needs to happen is this:We need to create a “server socket”...

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First network programming example

First network programming example There is a server in Boulder, Colorado,  that provides the exact time of day (in Greenwich Mean Time) upon request.   You can contact that server via the Telnet utility (from a command line) to see what output it provides.  The 13 on the command line is the port number at which the service is provided.  Notice that the command line provides a domain name and port number, just what is needed to construct a remote endpoint.What is not quite obvious from this printout (until I point it out) is that the output from the server begins and ends with a...

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Domain Name Servers (DNS)

Domain Name Servers (DNS)Where will we get the remote IP address that we need?   Well, we could make a telephone call or send an email to the person at the other end—but that isn’t a practical method for many purposes.  Instead we want to be able to mention an internet domain name.  When you set up a computer to connect to the internet, you have to specify one or more IP addresses for a domain name server. Then your local operating system knows how to request an IP address for a given domain name, and the DNS server supplies it.  Taking advantage of this low-level service, we will be able to...

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Network Programming in .NET

Basic concepts of network programming To set up a communication channel between two computers, we will need a pair of endpoints, and a communication protocol (some way of interpreting the data, and a way of establishing the connection between the two endpoints, and a way of ending the “conversation” politely).   One such communication protocol is called TCP  (Transport Control Protocol).  We leave it to your networking course to supply details about TCP and TCP/IP, but .NET makes it possible to write network programs without knowing anything about TCP.   There exist other...

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Information technology

The technology involved with the transmission and storage of information, especially the development, installation, implementation, and management of computer systems within companies, universities, and other organizations In the broadest sense, information technology refers to both the hardware and software that are used to store, retrieve, and manipulate information. At the lowest level you have the servers with an operating system. Installed...

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