Understanding ASP.NET Validation Controls
After you create a web form, you should make sure that mandatory fields of the form elements such as login name and password are not left blank; data inserted is correct and is within the specified range. Validation is the method of scrutinizing that the user has entered the correct values in input fields. In HTML you can perform validation either by checking the values at client-side or after submitting the form at the server-side. But these methods in HTML take lots of time to create and maintain the code. Moreover, if the user has disabled JavaScript then he or she may not receive the message regarding the error.
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A Fast Track Guide to ASP.NET
Microsoft’s .NET technology has attracted a great deal of press since Beta 1 was first released to the world. Since then, mailing lists, newsgroups, and web sites have sprung up containing a mixture of code samples, applications, and articles of various forms. Even if you’re not a programmer using existing ASP technology, it’s a good bet that you’ve at least heard of .NET, even if you aren’t quite sure what it involves. After all, there’s so much information about .NET, that it’s sometimes hard to filter out what you need from what’s available. With new languages, new designers, and new ways of programming, you might wonder exactly what you need to write ASP.NET applications.
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Step-by-Step Guide to Integrating OpenAuth into Your ASP.NET Web Application
No matter what kind of Web application you build, the process always seems to start in the same place: managing user accounts. Writing a file-sharing application for the Web? You begin by identifying who is uploading the file. Writing a chat application for the Web? You have to know who will use the chat session, so you can give them access. Because the Web is inherently multi-user, any application you build is going to require managing a list of users.
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Adding the ASP.NET 2.0 radMenu Control to MOSS 2007 Publishing Sites
With the release of Windows SharePoint Services (WSS) v3 and Microsoft Office SharePoint Server (MOSS) 2007, Microsoft has implemented significant architectural changes to the SharePoint platform which simplifies the task of customizing the user interface. Most of these improvements are because WSS v3, unlike its predecessor, is built on top of the .NET 3.0 Framework bringing the native capabilities of ASP.NET 2.0 directly to the SharePoint platform. One such ASP.NET 2.0 concept that is leveraged by WSS v3 is the navigation provider model. The navigation provider model separates the navigation hierarchy (the data portion, otherwise known as site-map data sources) from the rendering (the presentation portion, otherwise known as navigation controls). The role of the site-map data source is to abstract the navigation hierarchy from the underlying system (such as SharePoint) to make it transparent to the navigation control. This allows developers to easily snap ASP.NET 2.0 navigation provider model compatible controls into a SharePoint site by simply configuring them to receive the navigation hierarchy from the provided SharePoint site-map data sources.
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Ajax.NET Professional Library
Every once in a while, a technology is extremely simplified with the introduction of new wrapper libraries. These libraries use existing technologies but make the development process easier to use by wrapping the sometimes difficult concepts into easier-to-use, more simplified concepts. So, the term wrapper library comes from having a library of code wrapped around existing technology. You can tell when a great wrapper library is released because of its instant popularity. This chapter covers one such wrapper library known as the Ajax library for .NET. In this chapter and the next, we will show off the simplicity of talking back and forth between client browsers and your application server without page postbacks. We’ll also dig a little under the hood of the library to show you how and why the library works.
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