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A Sample Chapter from Professional ASP.NET. Covers Installing .NET, Creating ASP.NET Applications in Visual Studio.NET, The difference between ASP.NET Different and ASP, Web forms, Server Control, Code and Content Separation, and more.

GDI+ (Graphics Device Interface) is the new interface for drawing Windows graphics. It is used frequently in Windows Applications but the nice thing is that they are also available in ASP.NET Web Applications.

In this article, you'll see how sending email with ASP.NET is possible and then we'll go deeper to see how you can use HTML emails or include attachments.

This is part II of a series of articles in which we'll learn how to send mass e-mails ( both text and HTML ) to a list of subscribers using ASP.NET. We'll also learn what are validation controls and how they can help us validate user input.

Tutorial : Policy Injection Application Block - Enterprise Library

A Sample Chapter 5 from "Professional VB.NET 2nd Edition". Visual Basic has had powerful object-oriented capabilities since the introduction of version 4.0. VB.NET carries that tradition forward. VB.NET simplifies some of the syntax and greatly enhances these capabilities, and now supports the four major defining concepts required for a language to be fully object-oriented. This chapter will explore the creation and use of classes and objects in VB.NET.

Given that all the prerequisites and ASP.NET are installed, this tutorial walks you through writing ASP.NET pages of your very own.

Short support vb.Net functions to convert date from/to http string date and sample code to send static files with 200 OK + Last-Modified http header and 304 Not Modified when If-Modified-Since request header is present.

This code demonstrates how to use an MD5 hash to encrypt user passwords when storing them in a database. There are constantly news items about companies where user information is compromised. By storing passwords using an MD5 hash, even if your database is compromised the passwords cannot be decoded. The only downside is that users cannot retrieve lost passwords, they must reset them.

Part 3 of a Multipart Series - In this tutorial we will learn how to create line, bar, and area PNG charts on the fly and incorporate them in our website statistics application. Specifically, we will create area charts of daily visits and page views for the last 12 months, and display them in the reports section of our application. Again, all code has been explained in detail, and is available for download.

This article describes how to send emails with attachments using System.Web.Mail namespace from an ASP.NET page. Full source code available for download.

Comprehensive tutorial on uploading image files, determing size ( in bytes ), type ( bmp, jpg, gif ), width and height ( in pixels ) of these images, imposing restrictions to allow images of only certain size, width and height to get uploaded and to resize ( create thumbnails of ) these images.

This tutorial will help you setup HTTP Gzip and Deflate compression in your ASP.NET web application. We will make use of an ASP.NET web application life cycle event in Global.asax file to achieve that. The code is very simple to understand.

After completing this tutorial, you will be able to:
*Cache content
*Improve the performance of Web applications by using output caching
*Manage the cached content through the OutputCache directive
*Manage the cached content through the HttpCachePolicy class

This tutorial covers working with application state and application-wide events within your ASP.NET application. In normal desktop applications, the notion of a global meeting place for various parts of an application is well-understood. For example, MFC, a C++ class library supporting low-level Windows development, includes a class named CWinApp that holds state useful throughout the program. This state includes such items as a handle to the current instance of the application, a handle to the main window, and the parameters that were passed in when the application started. The CWinApp class also runs the message loop—something that can be done only within the global scope of a Windows application. A running Windows application contains one and only one instance of the CWinApp class, and it's perennially available from anywhere within the application.

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