ASP.NET is Microsoft's dynamic website technology, enabling developers to create data-driven websites using the .NET platform. ASP.NET version 1.0 was first released in January 2002, with ASP.NET version 1.1 released in April 2003. Version 2.0 of ASP.NET was released in November 2005. Subsequent versions - ASP.NET 3.0 and ASP.NET 3.5 - were additive releases, meaning that the core assemblies have remained unchanged since ASP.NET 2.0. For this reason, I have separated out the articles here on 4Guys into two categories: those relating to ASP.NET version 1.x and those relating to ASP.NET version 2.0, 3.0, and 3.5.

Latest ASP.NET Articles

Apply ASP.NET Authentication and Authorization Rules to Static Content with IIS 7.0's Integrated Pipeline Feature (December 24th) Four Helpful Features to Add to Your Base Page Class (December 18th) Locking the Screen During a Postback (December 17th) Key Configuration Settings When Deploying a Web Application (December 10th) Caching Data During the Lifespan of a Request (December 8th)

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Recommended ASP.NET Version 2.0 / 3.0 / 3.5 Articles...

[AJAX] | [Website Layout and Design] | [Using Visual Studio] | [Working with and Displaying Data] | [System Architecture] | [Working with Web Controls] | [Security] | [Network Functions] | [Caching] | [Miscellaneous Topics] | [Graphics and Charting]

AJAX

• An Introduction to AJAX and Atlas with ASP.NET 2.0
  
• Building Interactive User Interfaces with Microsoft ASP.NET AJAX: Part 1 [Part 2] [Part 3] [Part 4] [Part 5] [Part 6]
  
• Creating an AJAX-Enabled Calendar Control
  
• Disabling a User Interface Element During a Partial Page Postback
  

Website Layout and Design

• A Sneak Peak at MasterPages in ASP.NET 2.0
  
• Passing Information Between Content and Master Pages
  
• Examining ASP.NET 2.0's Site Navigation - Part 1 [Part 2] [Part 3] [Part 4] [Part 5]
  
• Dynamically Setting the Page's Title in ASP.NET 2.0
  
• Programmatically Creating Context-Sensitive Help on a Web Page
  
• Creating CSS Friendly Websites with ASP.NET 2.0
  
• Displaying Random Images in an ASP.NET Web Page
  

Using Visual Studio

• A Look Forward at Microsoft's Visual Web Developer 2005
  
• Creating and Using Code Snippets in Visual Studio 2005
  
• Improved Debugging with Visual Studio 2005's Debugger Visualizers
  
• An Overview of ASP.NET 3.5 and Visual Studio 2008
  

Working With and Displaying Data

• A Sneak Peak at Working with Data in ASP.NET 2.0
  
• Accessing and Updating Data in ASP.NET 2.0: Data Source Control Basics [Part 2] [Part 3] [Part 4] [Part 5] [Part 6] [Part 7] [Part 8] [Part 9] [Part 10] [Part 11] [Part 12] [Part 13] [Part 14]
  
  
• Working with Databases in ASP.NET 2.0 and Visual Studio 2005
  
• GridView Examples for ASP.NET 2.0
  
• Using Strongly-Typed Data Access in Visual Studio 2005 and ASP.NET 2.0
  
• Returning Ranked Results with Microsoft SQL Server 2005
  
• Custom Paging in ASP.NET 2.0 with SQL Server 2005 [Sorting Custom Paged Results] [Filtering Custom Paged Results]
  
• Checking All CheckBoxes in a GridView [Adding a "Check/Uncheck All" Header CheckBox]
  
• A Multitude of Tutorials that Examine Working with Data in ASP.NET 2.0
  
• Creating a Tag Cloud in ASP.NET
  
• Storing Binary Files Directly in the Database Using ASP.NET 2.0
  
• Deploying a Local Database to a Remote Web Host
  
• Debugging SQL Server 2005 Stored Procedures in Visual Studio
  
• Displaying Extended Details in a GridView Using an Ajax Pop-Up (Part 1) [Part 2]
  
• Using ASP.NET 3.5's ListView and DataPager Controls: Displaying Data with the ListView [Grouping Data] [Sorting Data] [Paging Through Data] [Grouping By a Data Field]
  
• Extending the GridView to Include Sort Arrows [Improving the Sort Arrows GridView Control]
  
• Importing an Excel Spreadsheet Using Typed DataSets and TableAdapters: Building the Database [Building the Importer Web Page and Uploading the Excel Spreadsheet] [Displaying the Uploaded Excel Spreadsheet] [Creating a Data Access Layer (DAL)] [Importing the Excel Spreadsheet]
  
• Working with XML Data Using LINQ, a TreeView, and a ListView :: Displaying Data [Editing Data]
  
• Displaying Detail Records for User-Selected Master Records :: Using a Dynamic IN Clause [Saving the User's Search Preferences]
  
• Creating a Databound Label Control
  
• Creating a Dynamic Data-Driven User Interface (Part 1) [Part 2] [Part 3] [Part 4]
  
• Programmatically Retrieving a Stored Procedure's Parameters
  
• Retrieving the Just-Inserted ID of an IDENTITY Column Using a SqlDataSource Control
  
• New Date Data Types in Microsoft SQL Server 2008
  

System Architecture

• A Look at ASP.NET 2.0's Provider Model
  
• Examining ASP.NET 2.0's Membership, Roles, and Profile - Part 1 [Part 2] [Part 3] [Part 4] [Part 5] [Part 6] [Part 7] [Part 8] [Part 9] [Part 10] [Part 11] [Part 12] [Part 13]
  
• Apply ASP.NET Authentication and Authorization Rules to Static Content with IIS 7.0's Integrated Pipeline Feature
  
• Gracefully Responding to Unhandled Exceptions - Displaying User-Friendly Error Pages [Processing Unhandled Exceptions]
  
• Creating Custom Configuration Sections in Web.config [Using .NET 2.0's Configuration API]
  
• Health Monitoring in ASP.NET 2.0: The Basics [Part 2] [Part 3]
  
• Rolling Your Own Website Administration Tool - Part 1 [Part 2]
  
• Using Coordinated Universal Time (UTC) to Store Date/Time Values
  
• Taking an ASP.NET 2.0 Application Offline
  

Working with Web Controls

• Dissecting the Validation Controls in ASP.NET 2.0
  
• Creating a Step-by-Step User Interface with the ASP.NET 2.0 Wizard Control: The Basics [Improving and Customizing the User Experience]
  
• Customizing the CreateUserWizard Control
  
• Using the TreeView Control and a DataList to Create an Online Image Gallery
  
• Creating Validator Controls for the CheckBox and CheckBoxList |
• Disabling the Submit Button Until a CheckBox is Checked
  
• Creating a TextBox Word / Character Counter Control
  
• Working Around ASP.NET's HyperLink ImageUrl Bug
  
• Picking Dates with a Free RJS PopCalendar, a Free ASP.NET Popup Calendar Control
  
• Displaying a Message in Response to Some Action and Then Hiding It on Subsequent Postbacks
  

Security

• Encrypting Configuration Information in ASP.NET 2.0 Applications
  
• An Overview of Cryptographic Systems and Encrypting Database Data [Using Symmetric Encryption in a SQL Server 2005 Database] [Using Asymmetric Encryption and Digital Signatures in a SQL Server 2005 Database]
  

Network Functions

• Sending Email in ASP.NET 2.0 [HTML-Formatted Emails, Attachments, and Gracefully Handling SMTP Exceptions] [Reply-To, Priority, and Read Receipts]
  
• Emailing the Rendered Output of an ASP.NET Web Control in ASP.NET 2.0
  
• Returning an IPv4 Address in an IPv6-Enabled Environment
  

Caching

• Output Caching in ASP.NET 2.0
  

Miscellaneous Topics

• Accessing Embedded Resources through a URL using WebResource.axd
  
• Client-Side Enhancements in ASP.NET 2.0
  
• Creating a Quick and Dirty Online Blackjack Game
  
• A Look at ASP.NET 2.0's URL Mapping
  
• Persisting Page State in ASP.NET 2.0
  
• Personalizing RSS Feeds with ASP.NET 2.0
  
• Building a User Control that Displays RSS Feeds Using a DataList and an XmlDataSource Control
  
• Creating an ASP.NET 2.0 Polling User Control: Design Decisions and the Data Model [Building the Polling User Control] [Creating Administration Web Pages]
• Hosting ASP.NET Applications in Medium Trust
  
• Resetting Scroll Position When Using MaintainScrollPositionOnPostback
  
• Extending Base Type Functionality with Extension Methods
  
• Dissecting ASP.NET Version 3.5's Web.config File
  
• Creating an Online Boggle Solver :: Building the User Interface [Solving the Puzzle]
• Warning the User when Caps Lock is On
  
• Techniques for Randomly Reordering an Array
  
• Helping Visitors Search Your Site By Creating an OpenSearch Provider
  
• Modifying the HTTP Response Using Filters
  
• Key Configuration Settings When Deploying a Web Application
  
• Locking the Screen During a Postback
  
  

Graphics and Charting

• Creating Charts with the Google Chart API [A Google Chart API Custom Server Control]
  

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Recommended ASP.NET Version 1.0 / 1.1 Articles...

These articles include information on ASP.NET version 1.x or on topics that are not version 2.0-specific...

[ASP.NET Basics] | [Working with Web Controls] | [Displaying Data] | [Advanced Data-Driven Tasks] | [Network Functions] | [Caching] | [Web Services] | [Software Design Principles and Best Practices] | [Application Architecture] | [XML] | [Examining ASP.NET Applications] | [Security] | [Graphics and Charting] | [Working with the File System] | [Utilizing Components] | [Advanced Techniques] | [Miscellaneous Topics]

ASP.NET Basics

• Commonly Asked ASP.NET Questions... Answered!
  
• ASP.NET Code Behind Pages
  
• Mark Anders Answers your ASP.NET/.NET Questions!
  
• Recommended Blogs for .NET and ASP.NET Developers
  
• How ASP.NET Web Pages are Processed on the Web Server
  
• Adding Client-Side Message Boxes in your ASP.NET Web Pages
  
• Getting the Most Out of Visual Studio .NET | Improving Developer Productivity with Visual Studio .NET Macros
  
• Passing Parameters from One Page to Another
  

Working with Web Controls

• Form Validation with ASP.NET - It Doesn't Get Any Easier!
  
• Using the CustomValidator Control
  
• Displaying XML Data in the Internet Explorer TreeView Control | Using the TreeView IE Web Control
  
• Populating Form Inputs Using the Calendar Control
  
• Creating a RollOver Button Server Control
  
• Easily Adding Functionality to ASP.NET Server Controls
  
• A Custom ASP.NET Server Control for Displaying RSS Feeds | Displaying RSS Feeds - A Look at RssFeed Version 1.9 | Syndicating Your Web Site's Content with RSS and ASP.NET
  
• Using Menus in an ASP.NET Web Application
  
• Creating a Content Rater
  
• Creating a Row-Selectable DataGrid Control
  
• Introducing the RoundedCorners Web Control | Improving the RoundedCorners Web Control
  
• Extending the Calendar Control's Date Navigation
  
• Providing a Richer Means for Entering Text Data
  
• Displaying Text in the Browser's Status Bar When Mousing Over a LinkButton | Stopping JavaScript Errors When Opening a LinkButton in a New Window
  
• Creating a TextBoxLengthValidator Validator Control
  
• An Easier Way to Highlight the Rows of a DataGrid on MouseOver
  
• Display Local Weather Forecasts with the NOAA's Web Service [Updating the MultiDayForecast Web Control]
  
• Enter and the Button Click Event [Two Common Pitfalls When Submitting a Web Form Using the Enter Key]
  
• List Control Items and Attributes | ListControl Items, Attributes, and ViewState
  

Displaying Data

• Using the ASP.NET DataGrid Control
  
• Understanding the Differences Among the DataGrid, DataList, and Repeater
  
• Efficiently Iterating Through Results from a Database Query using ADO.NET
  
• An Extensive Examination of the DataGrid Web Control: Part 1 [Part 2] [Part 3] [Part 4] [Part 5] [Part 6] [Part 7] [Part 8] [Part 9] [Part 10] [Part 11] [Part 12] [Part 13] [Part 14] [Part 15] [Part 16] [Part 17] [Part 18]
  
• Displaying Records in a DataGrid in Random Order
  
• Creating Databound DropDown Lists in ASP.NET | Creating a Default Option in a Databound DropDown List
  
• Creating a DataBound List of Radio Buttons in ASP.NET
  
• XML, the DataSet, and a DataGrid | DataGrids, DataSets, and XML Strings
  
• Using the .NET Framework Data Provider for Oracle
  
• Binding a Scalar Array to a Data Web Control
  
• Creating Collapsible Detail Regions in a Repeater | Creating a Tabbed Interface for Displaying Parent/Child Data
  
• A Code Template for a Pageable, Bi-Directional Sortable DataGrid
  
• Retrieving Scalar Data from a Stored Procedure
  

Advanced Data-Driven Tasks

• Paging Database Results in ASP.NET | Paging in ASP.NET
  
• Custom ASP.NET Datagrid Paging With Exact Count
  
• Adding a DropDownList to an Editable DataGrid
  
• Customizing DataBinded Output in Templates
• Including Subheadings in a Datagrid
  
• Summarizing Data with ROLLUP
  
• Computing Values from a DataTable
  
• Adding a New Record to the DataGrid | Enhancing Inserting Data through the DataGrid Footer
  
• Imposing Constraints on DataSet DataTables
  
• Transferring the Datagrid data Between Web Forms
  
• Creating a Custom DataGridColumn Class
  
• Displaying Custom Classes in a DataGrid
  
• Hosting a Windows Control in a Web Form
  
• Adding Paging Support to the Repeater or DataList with the PagedDataSource Class
  
• Creating a Repeater that Supports Pagination and Sorting
  
• Maintaining Database Consistency with Transactions
  

Network Functions

• Screen Scraping with ASP.NET
  
• Sending Email from an ASP.NET Web Page
  
• Emailing the Rendered Output of an ASP.NET Web Control | Enhancing the 'Email the Rendered Output of an ASP.NET Web Control' Code | Emailing the Rendered Output of an ASP.NET Web Control in ASP.NET 2.0
  
• Consuming an RSS Feed with ASP.NET | Creating an Online RSS News Aggregator with ASP.NET
  
• Uploading in ASP.NET
  
• Performing Browser Detection Using ASP.NET
  
• A Deeper Look at Performing HTTP Requests in an ASP.NET Page | Making Authenticated HTTP Requests from an ASP.NET Page
  

Caching

• .NET Data Caching
  
• Caching in ASP.NET
  
• Displaying Cached XML Data in a DataGrid, and Intelligently Refreshing the Data
  

Web Services

• Creating and Consuming a Web Service
  
• Creating a .NET Web Service
  
• Building Client Interfaces for .NET Web Services
  
• An Extensive Examination of Web Services: Part 1 [Part 2] [Part 3] [Part 4] [Part 5] [Part 6] [Part 7] [Part 8] [Part 9] [Part 10] [Part 11]
  
• Searching Google Using the Google Web Service
  
• Building an NBA Team Standings Web Service
  

Software Design Principles and Best Practices

• FxCop, Your .NET Cop
  
• NProf and ACT, Your Performance Assistants
  
• A Brief Introduction to NAnt
  
• Test Driven Development Using NUnit in C#
  
• Advanced Techniques with NUnitAsp
  
• Unit Testing the Data Access Layer
  
• An Introduction and Overview of the Microsoft Application Blocks | Examining the Data Access Application Block | Examining the Exception Management Application Block (EMAB) | An Introduction to the Microsoft Enterprise Library | Working with the Enterprise Library's Data Access Application Block
  
• Why I Don't Use DataSets in My ASP.NET Applications | More On Why I Don't Use DataSets in My ASP.NET Applications
  
• Database Projects in Visual Studio .NET
  
• Gracefully Responding to Unhandled Exceptions - Displaying User-Friendly Error Pages
  

Application Architecture

• Using XML to Share Constants Across Projects | Improving Using XML to Share Constants Across Projects
  
• Accessing Common Code, Constants, and Functions in an ASP.NET Project
  
• An Introduction and Overview of the Microsoft Application Blocks | Examining the Data Access Application Block | Examining the Exception Management Application Block (EMAB) | An Introduction to the Microsoft Enterprise Library
  
• Streamlining Your Data Access Layer with Helper Methods
  
• Specifying Configuration Settings in Web.config [Creating Custom Configuration Sections in Web.config]
  
• Globalizing ASP.NET Applications With Non-Standard Languages
  
• Creating Template-Driven Web Sites with MasterPages
  
• Using HTTP Modules and Handlers to Create Pluggable ASP.NET Components
  
• Using a Custom Base Class for your ASP.NET Pages' Code-Behind Classes
  

XML

• Creating XML Documents with the XmlTextWriter Class
  
• Quickly Editing an XML File
  
• Querying XML Data with XQuery
  
• Using XML to Store States and Provinces
  

Examining ASP.NET Applications

• An ASP.NET Rating System
  
• Hangman in ASP.NET
  
• A Robust Image Gallery for ASP.NET
  
• Displaying a List of Scaled Images | True Image Resizing
  
• Building an Event Calendar Web Application
  
• Creating a Banner Ad System in ASP.NET
  
• Creating a Content Rater | Improving the Content Rater
  
• Web-Based Surveys Made Easy | Working with the WebSurvey Control's Results
  
• Creating a Simple Image Slide Show
  

Security

• Building Secure ASP.NET Applications: Authentication, Authorization, and Secure Communication
  
• Using MD5 to Encrypt Passwords in a Database | Could you Pass the Salt? Improving the Security in Encrypting Passwords using MD5
  
• Converting Mike Shaffer's VBScript RC4 Encryption Code to C#
  
• Role-Based Authorization With Forms Authentication | Dissecting Forms Authentication
  
• Protecting Files with ASP.NET
  
• An Overview of Authentication and Authorization Options in ASP.NET
  
• Encrypting Sensitive Data in a Database
  
• Passing Tamper-Proof QueryString Parameters | Creating Expiring Web Pages
  
• Generating Random Passwords with ASP.NET
  
• An Overview of Cryptographic Systems and Encrypting Database Data [Using Symmetric Encryption in a SQL Server 2005 Database] [Using Asymmetric Encryption and Digital Signatures in a SQL Server 2005 Database]
  

Graphics and Charting

• Drawing Serpinski's Triangle with ASP.NET
  
• ASP.NET Charting Using Office Web Components (OWC)
  
• Create Snazzy Web Charts and Graphics On the Fly with ASP.NET
  
• An Introduction to Microsoft SQL Server 2000 Reporting Services
  
• ASP.NET Charting with NPlot
  

Working with the File System

• Reading Text Files in an ASP.NET Web Page
  | Highlighting Search Keywords in a DataGrid Web Control
  
• Displaying the Files in a Directory using a DataGrid
  
• Reading and Writing Text Files with the .NET Framework
  

Utilizing Components

• Using Components in ASP.NET
  
• Accessing .NET components from COM components
  
• Using Win32 DLL functions and COM components from .NET applications
  
• COM Interoperability in the .NET Framework
  
• Building ASP.NET User Controls | An Extensive Examination of User Controls
  
• Trigger Page Methods from a User Control
  

Advanced Techniques

• Displaying Information about the ASP.NET Process
  
• Displaying Performance Monitor Information through an ASP.NET Web Page
  
• HTTP Handlers and HTTP Modules in ASP.NET
  
• Dynamic Controls in ASP.NET | Working with Dynamically Created Controls | Dynamic Web Controls, Postbacks, and View State
  
• Sorting An Array Using Array.Sort()
  
• Regular Expressions in .NET
  
• Efficiently Searching a Sorted Array
  
• Tracing in ASP.NET
  
• HttpContext.Items - a Per-Request Cache Store
  
• Using ASP.NET to Prompt a User to Save When Leaving a Page | An Update on Prompting a User to Save When Leaving an ASP.NET Page
  
• Understanding Interfaces and Their Usefulness
  
• A Look at WebCharts, a Free .NET Charting Control
  
• Bubbling Events Up the Control Hierarchy
  
• Specialized Collections
  

Miscellaneous Topics

• Understanding Enumerations
  
• A Look at ASP.NET's Adaptive Rendering | Client-Side Validation in Downlevel Browsers
  
• Decompiling .NET Assemblies
  
• Understanding Pagination in ASP.NET 1.x Mobile Applications
  
• Maintaining Scroll Position on Postback
  
• Searching Your Website with Microsoft Index Services
  
• Little Known, Invaluable Methods and Properties in the .NET Framework Base Class Library : Working with File Paths | Working with Colors
  
• Subtleties in Providing a Read-Only User Interface
  

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