It is a relational database management system for building business applications with increased data protection. The SQL server acts like an 'engine' providing enhanced performance for data access and delivery of data from your server

Because multiple users can visit the same web page concurrently, it is possible for a user visiting a data modification page to inadvertently overwrite the modifications made by another user. Consider a page with an editable GridView. If two users visit this page simultaneously from different computers and both edit the same row, whomever saves the...   Read Article.

Most security systems' passwords are case-sensitive. Case sensitivity nearly doubles the number of possible characters that can appear in the password, which makes it harder for nefarious users trying to break into the system. As a result, if a user logging into the system has Caps Lock turned on, they'll enter letters in the opposite case and...   Read Article.

Microsoft's ASP.NET AJAX Framework helps page developers design more interactive web pages by streamlining the postback mechanism. In traditional web pages, a full postback involves the browser re-requesting the page, which is then re-rendered. This re-rendered page markup is returned, in its entirety, to the browser for display. Ajax techniques improve...   Read Article.

ASP.NET includes a variety of tools for displaying and editing XML documents. A previous article, Working with XML Data Using LINQ, a TreeView, and a ListView :: Displaying Data, showed how with a TreeView control, a ListView control, an XmlDataSource control, a LinqDataSource control, and about 50 lines of code we could create a web page that displayed...   Read Article.

With more and more data being stored in XML, web applications today commonly need some way to view and edit the data stored in an XML file from a web page interface. If the XML data is relatively "flat" and tabular in nature, we can use data Web controls like the DataGrid, GridView, and Repeater. (See Quickly Editing XML Data for an example of editing...   Read Article.

The Membership system automatically tracks the last date and time each user's account has been accessed. With the SqlMembershipProvider, this information is stored in the aspnet_Users database table in a datetime column named LastActivityDate. This column is automatically updated to the current UTC date and time whenever a user logs into the site,...   Read Article.

My family enjoys playing games and one of our favorites is Boggle, an addictive word game where players attempt to find as many words in a 4x4 grid of letters. At the end of a game, players are left wondering whether there were any unearthed words. To answer this question once and for all, I created an online Boggle solver using ASP.NET version 3.5. This...   Read Article.

I spend most of my day writing about ASP.NET or building ASP.NET applications for clients. As every ASP.NET developer knows, the bulk of ASP.NET development centers around data access - building pages to collect user input and crafting reports to summarize that information. To help break this monotony, I occasionally set aside an afternoon to work on...   Read Article.

Over the past four installments in this article series we have: created a SQL Server database for our web application; created an ASP.NET web page that enabled the visitor to upload an Excel spreadsheet and view its contents in a GridView; and created a Data Access Layer (DAL) using Typed DataSets for accessing our application database. All that remains...   Read Article.

Over the course of the past three tutorials we have created an ASP.NET page that allows the visitor to upload and display an Excel spreadsheet in a GridView. Our end goal is to allow the user to import the rows in the spreadsheet into the two tables of our application database, a task we will complete in this fourth installment. In Displaying the Uploaded...   Read Article.

This sample chapter discusses specific hardware security problems and provides tools and strategies for keeping your hardware secure....   Read Article.

Warren Wyrostek calls on personal and real-world experience to share the top 10 problems with IT certification in 2007/2008....   Read Article.

This chapter covers the common features of Microsoft Dynamics CRM....   Read Article.

Most mobile phones are capable of sending and receiving messages. WMA extends this capability to MIDlets....   Read Article.

Provide fine-grained access control to individual records in the most sensitive tables of your database....   Read Article.

Learn some of the basic building blocks that make digital systems work....   Read Article.

Seth Fogie takes a look at the mobile spyware app FlexiSPY and shows where the mobile malware world could be headed....   Read Article.

David Chisnall takes a look at the GNU Project's infamous HURD kernel....   Read Article.

Chris A. Ortiz provides a great example of an organization that struggled to implement lean manufacturing but did not experience the desired success....   Read Article.

In Building the Importer Web Page and Uploading the Excel Spreadsheet we created an interface for users to upload an Excel spreadsheet to the web server with the end goal being that a user could import the uploaded spreadsheet's data into the application database. Before importing the data, it would be prudent to display the contents of the uploaded...   Read Article.