Execute a Long-Running Workflow Using Persistence in Windows WF   23 Aug 2006 22:13 GMT
If you're experimenting with workflows it won't be long before you find that you need to run a workflow that is too long to execute directly from memory. A workflow that needs hours—or even days—to conclude requires you to persist the workflow instance to an external medium so that the workflow can be continued later.
Source: DevX

Taking Advantage of Concurrent Programming for Windows, Part 1: The Simplest Multi-core Parallelism That Could Possibly Work   23 Aug 2006 21:21 GMT
In today's multi-core environment you might survive without parallelizing your code, but the many-core era of tomorrow will absolutely require it.
Source: DevX

Controlled Image Sharpening with Photoshop CS2   23 Aug 2006 04:00 GMT
Having trouble applying Photoshop's Unsharp Mask filter to your creations? Using the Unsharp Mask can be tricky business, but, as Corrie explains, some good technique, a little patience, and an artistic eye is all you need to sharpen your images to a professional standard.

Source: SitePoint

Programmatically Creating Context-Sensitive Help on a Web Page   23 Aug 2006 00:00 GMT

In last week's article, Creating Context-Sensitive Help on a Web Page, we looked at how to associate rich help "tooltips" with certain regions in the browser. With a bit of client-side JavaScript and HTML markup, this previous article illustrated how to have a help window with images and rich text appear when mousing over an image or specific text. Such context-sensitive help is a great way to include extra information or a more detailed explanation of data on a web page in a space-saving manner.

Last week's article aimed to simply lay the ground work for creating a context-sensitive help system and, as such, had a few shortcomings. Most noticeably, the help window appeared immediately when mousing over its associated region and disappeared immediately after mousing out of that region. This behavior introduced two usability issues: first, when moving the mouse over the screen, if you happened to pass over a help region the help window appeared, which could be jarring; second, if a help window contained links or was lengthy enough to require scrolling, when attempting to move the mouse from the help region to the help window, the mouse would leave the help region and the help window would disappear.

In addition to these two end user usability problems, the context-sensitive help system presented last week wasn't very user friendly for us, the page developer. All of the script and <div> and <iframe> elements needed to be manually added to the web page to define the help windows and the onmouseover and onmouseout event handlers for the help region. Ideally, all of the necessary script and markup could be added programmatically, with a single line of code from the ASP.NET code-behind class.

In this article we'll see how to improve upon the rudimentary context-sensitive help system from last week by fixing the aforementioned usability concerns and by creating an ASP.NET 2.0 class with methods to programmatically add the help windows and needed script for a given help region. Read on to learn more!

If you've not yet read Creating Context-Sensitive Help on a Web Page, please do so before continuing with this article...
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Source: 4GuysFromRolla

How to Use Settings in Visual C# 2005   22 Aug 2006 23:44 GMT
Learn the difference between application and user settings, how to create new settings at design time, how to access settings at runtime, and how to incorporate multiple sets of settings into your C# application.
Source: MSDN

Dealing with Database Concurrency Conflicts in the Real World   22 Aug 2006 22:14 GMT
Database concurrency conflicts are somewhat of a plague in software development because they're hard to predict and handle. Unfortunately, they're also hard to prevent.
Source: DevX

A Quick Way to Copy DataRow   21 Aug 2006 23:51 GMT
Use this code tp copy data in one line from the source to the destination row.
Source: DevX

Nine ASP.NET Site Navigation Problem Solutions: Part 2   21 Aug 2006 20:14 GMT
Discover how to grant or deny users access to pages in your sites, and how to create dynamic site maps using database-driven data.
Source: DevX

Generic Dictionaries: Hidden Treasure of System.Collections.Generic   18 Aug 2006 01:30 GMT
Generic dictionaries simplify common tasks, such as coordinating selection between a TreeView and a ListView—but their capabilities extend far beyond that, once you realize you can use DynamicInvoke() to execute delegates stored in the dictionary.
Source: DevX

XLINQ Part 2: Using Standard Query Operators   16 Aug 2006 23:04 GMT
XLinq's query power goes way beyond the now-common methods of retrieving XML and querying it with XPath.
Source: DevX