Learn how to extend an ASP.NET control to hold an unlimited number of additional values in ViewState to avoid expensive re-querying of the database.

If you are working in a mixed development environment you know that ASP "Classic" and ASP.NET cannot share session state information. I am offering the source code I used to this resolve this issue as well as discussing a couple of other possible resolutions.

A common task in N-tier .NET web application development involves compiling components. You can compile components in several different ways, from using commands executed at the DOS command prompt to using methods available through the Visual Studio .NET Integrated Development Environment. This tutorial provides detailed steps for using each of these methods. The first method is for those who only have the .NET Framework installed and are comfortable with working from the command prompt. The second method also involves working from the command prompt but employs special tools installed with the installation of Visual Studio .NET. In the third method, you'll be introduced to compiling components using the visual interface of Visual Studio .NET. Whether or not you have Visual Studio .NET installed, you'll find the steps for compiling your components here.

This article introduces you to the two primary aspects of working with .NET web services: building your own custom web service and building the inerface necessary for harnessing the capabilities of a remotely distributed web service. The first part of this tutorial walks you through all the steps for building your own, simple web service, and the second part walks you through the steps necessary for building and then integrating a remote web service's capabilities into your own application. This tutorial also provides a link for downloading all code associated with this tutorial. Happy Coding!

This article provides some helpful tips in working with ASP.NET on Microsoft's Internet Information Services (IIS) web server, providing walkthrough descriptions and resolutions for common problems that the author has experienced.

When developing ASP.NET applications, you may sometimes need to implement a custom validation that is recognized and displayed by the ValidationSummary control so that all validation error message appear in one place without additional coding. You also want to implement this custom validation by using page CodeBehinds, as you would like to leave the ASPX page with the miminum code necessary. This article shows you how in nine easy steps, complete with screen captures and code descriptions.

This article presents a simple method for securing your ASP.NET web pages, requiring almost no code development. In this article, you'll be introduced to the components that .NET provides that significantly reduce the amount of code you have to write in order to secure your website pages. You'll learn about Forms Authentication, User Identity, XML configuration files, and authorization tickets. And you'll learn how to store username and password information in simple XML configuration files.

If you want to run ASP.NET web applications on your local computer, you must have both Internet Information Services (IIS) and ASP.NET installed. IIS is necessary for providing web service and ASP.NET is necessary for providing handling of the family of ASP.NET web applications (ASPX, ASMX, etc). IIS is installed by default for installations of Windows 2000 and Windows XP. ASP.NET is installed by default during .NET Framework installation. However, if you attempt to install the .NET Framework on a Windows 2000 or Windows XP machine that doesn't have IIS installed, the .NET Framework installation will detect that IIS is not available and thus will not install ASP.NET component of the framework. If you subsequently install IIS at a later time, you will have to install ASP.NET manually. Likewise, if you have both IIS and .NET installed on your computer, and then later un-install IIS, this uninstallation will also uninstall the ASP.NET component of the .NET Framework. If you later re-install IIS, you will have re-install ASP.NET manually. This article walks you through the re-installation of ASP.NET for a computer already running IIS.

Microsoft's .NET Framework 1.1 does not provide proper utilities to communicate with the serial ports on a Windows machine. The RS232 library and this quick tutorial will have you talking to a COM port on your machine in no time.

This article walks you through the process of building a thin-client ASP.NET bug tracking application, with a Microsoft Access XP backend. It uses nearly every documented capability of the .NET datagrid web server control to allow you to select, edit, update, or delete any item listed in the datagrid. The Issue Tracker uses advanced features, such as reading values from lookup tables, and then conveniently providing these values to the user in Edit mode as dropdownlists. It also employs the IE Web Controls, including the Tab and MultiPane web controls, which allow you to display considerable user functionality on only one web page, yet without cluttering the user interface with confusing complexity. After working through this tutorial, you will have explored and applied all of the main functionalities of the ASP.NET DataGrid control. Happy Coding!