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One of the excellent features of ASP.net Ajax Extension 1.0 is the UpdatePanel control. The UpdatePanel control enable partial-page rendering in an ASP.NET Web page asynchronously. The contents of UpdatePanel control will automatically update when a postback event invoked. This control does work same as MagicAjax.net panel control. The UpdateProgress control is very useful when working with UpdatePanel control. With an UpdateProgress control, you can show the status during the partial-page rendering of an UpdatePanel.

An ASP.Net/AJAX interface for utorrent

How to do AJAX without writing any JavaScript.

This article demonstrates how to provide download of a file in ASP.net along with tracking its success and failure. It will be useful especially in e-commerce system that offers downloadable product option. In e-commerce system it is very important to keep track of status of download.

A simple, easy-to-use, resumable .NET file downloader.

When creating ASP.NET 2.0 applications, developers commonly store sensitive configuration information in the Web.config file. The cannonical example is database connection strings, but other sensitive information included in the Web.config file can include SMTP server connection information and user credentials, among others. While ASP.NET is configured, by default, to reject all HTTP requests to resources with the .config extension, the sensitive information in Web.config can be compromised if a hacker obtains access to your web server's file system. For example, perhaps you forgot to disallow anonymous FTP access to your website, thereby allowing a hacker to simply FTP in and download your Web.config file. Eep.

Fortunately ASP.NET 2.0 helps mitigate this problem by allowing selective portions of the Web.config file to be encrypted, such as the section, or some custom config section used by your application. Configuration sections can be easily encrypted using code or aspnet_regiis.exe, a command-line program. Once encrypted, the Web.config settings are safe from prying eyes. Furthermore, when retrieving encrypted congifuration settings programmatically in your ASP.NET pages, ASP.NET will automatically decrypt the encrypted sections its reading. In short, once the configuration information in encrypted, you don't need to write any further code or take any further action to use that encrypted data in your application.

In this article we'll see how to programmatically encrypt and decrypt portions of the configuration settings and look at using the aspnet_regiis.exe command-line program. We'll then evaluate the encryption options ASP.NET 2.0 offers. There's also a short discussion on how to encrypt configuration information in ASP.NET version 1.x.

The .NET framework provides rich support for generating and manipulating bitmap images, but it lacks one significant feature that is imperative for image processing - the ability to modify and then save modified bitonal (i.e., black and white or one-bit per pixel) images. Bitonal images are commonly used in document management and document imaging applications for scanned documents. Bitonal images are most commonly stored in the TIFF (Tagged Image File Format) file format with a CCITT Group IV compression algorithm..

An introduction with AJAX, jQuery, JSON, MvcContrib and NUnit

When users of any computer application start a potentially lengthy operation, best practices dictate that the user interface should be updated to indicate that work is in progress and that results may not be available for a while. This is easy to accomplish in a desktop application, but it can be rather difficult in a Web scenario. In Web applications, displaying text such as "Please wait" just before an operation begins is easy, but if you want to provide some useful feedback, such as the estimated time to completion or the percentage of work finished, it’s a bit more difficult to accomplish. This is because most lengthy tasks in Web apps execute on the server, and there are no built-in mechanisms for pushing state information to the client.

In this month’s column, I build a server and client ASP.NET AJAX infrastructure to start and control a potentially lengthy server-side task.

UltimateSpell is an ASP.NET control to spell check editable content on your web pages. * AJAX Enabled - Spell check very long text without compromising on speed. Sends small blocks of text to server using AJAX techniques without refreshing the page. * Auto Find - Drag-and-drop the control onto your page, and you're done. It automatically finds and spell checks all editable controls. * Cache Dictionary - Automatically caches dictionaries for fast interaction and data retrieval. * Lots of Dictionaries - Currently 34 dictionaries available on our website. If not enough you can use your own dictionary as well. * Show Options - Change the spelling options either on the server-side, or on the client-side inside the spell check dialog box at runtime.