Tutorials & Tips

In this article we will generate a random serial code for our applications. The script will generate a similiar serial code to use in a real application.

This tutorial covers one option for including a common header and footer into your HTML pages without having to modify the html page itself. Technologies used are the System.XML, System.Net, and System.IO .Net classes.

This article covers using the System.Drawing.Bitmap and drawBrush to draw text on a bitmap in memory. You could use this code as a base to create dynamic navigational buttons for your site.

In this article we cover using the System.Net class to make an HTTP request and return the status code. In addition, we'll cover handling the HTTP response and binding it to an XSL transformation.

In this code snippet we're going to provide will enable you to add text to an image in memory. One use for this code may be to open a file on the file system and add some text to the image, then stream the image out to the user. This could come in handy if you want to create navigational buttons for your Web site dynamically based on a request or dynamically create banners via .Net code.

This article explains what are "Delegates"? And what is their role in .NET framework. The author uses VB.NET code to provide working examples of "Delegates".

In this article we will take a quick look at two methods for creating SHA1 passwords for use on the web using .NET. It is dangerous to store passwords anywhere in plain text!! SHA1 gives a quick and easy way to encode a password into a non-human readable form. This means it is safer to store in a database, and should the database be viewed by anyone who shouldn't know the passwords, it will be much more difficult for them to work out what a user's password is.

This article discusses different options you as a developer have in ASP.NET to send data from one ASP.NET page to another. Since you cannot use ASP.NET Web Controls (System.Web.UI.WebControls) in such a scenario (which only allow posting back of data to the same page), this article discusses other ways like using HttpContext object.

A comprehensive tutorial on viewing, adding, editing and removing records from MySQL database using ASP.NET DataGrid control. Provides thorough coverage of ADO.NET data access techniques and user data input validation using ASP.NET validation controls.

This step-by-step tutorial makes use of over 20 images to describe every step in detail from obtaining, installing, configuring and running MySQL on Windows to insalling/uninstalling MySQL as a Windows service, creating a new table, populating it with some records and displaying those records in an ASP.NET page. Also explains the advantages of using MySQL on Windows with ASP.NET. All the code is 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.

The label "web services," as broadly applied, has two levels of meaning�one specific and one conceptual. Specifically, web services are a stack of emerging standards that describe a service-oriented, component-based application architecture. Conceptually, web services represent a model in which discrete tasks within e-business processes are distributed widely throughout a value net.

An article which discusses the similarites between different technologies of J2EE and .NET and helps you to move from J2EE to .NET. Quick tips to get you started, in case you need to migrate a J2EE based application to a .NET based application.

The second article from William Fawthrop (aka Informant) will discuss in detail what Fields and Properties are and how to properly implement them into your applications. We will start off Discussing common coding practices and how they differ in .NET. Specifically property syntax. Informant has been a developer for about 5 years now and developing in C# for about 1 year. He has created a number of freeware software solutions(SQL X-ecuter,Simple ASP.NET Web Server, etc) as well as working fulltime for PCSTop.com as Lead Developer. He specializes in .NET migration as well as creative solutions in the .NET framework.

A comprehensive tutorial on uploading files to Microsoft Access database using built-in ASP.NET server controls. Describes how to upload one or more file to Access database? how to insert and retrieve binary data from an Access database? how to view and delete files uploaded on the Access database?

A comprehensive tutorial on uploading files to server hard disk using built-in ASP.NET server controls. Describes how to upload more than one file? how to upload only image files? how to retrieve other form non-binary field values? how to view and delete files uploaded on the server? how to force user to download a file without viewing it? how to expose correct file name to the user browser instead of a generic file.aspx? how to retrieve correct content-type for the file from system registry? how to set/unset max file upload size limit per folder of your application?

William Fawthrop (aka Informant) gives us his first .NET article in what promises to be a great new series of articles from him. The author specializes in .NET migration as well as creative solutions in the .NET framework. In this article: A C# 'Hello World' with a loop.

Explains how Dreamweaver MX can be used to consume web services in ASP.NET for the visual environment. In detail, the "Local Time" web service from XMethods will be utilized.

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.

Sample chapter from "Visual Basic .NET Developer's Guide to ASP.NET, XML and ADO.NET" on ASP.NET controls, code-behind, Page object, web controls, HTML controls and Page object reference.