Validation groups - ASP.NET


Validation groups  ASP.NET

ASP.NET 2.0 Features
Developer Productivity
            Master Pages
            New Code-Behind Model in ASP.NET 2.0
            Creating & Sharing Reusable Components 
            New ASP.NET 2.0 Controls
                       Data Controls
                       Security Controls
                       Other New Controls
                       Validation Groups
            Web Parts Framework
            Visual Studio 2005 Improvements
Administration and Management
Speed and Performance
            Caching Feature
ASP.NET 2.0 Validation Group 

Professional ASP.NET 2.0 Databases

This excerpt from Professional ASP.NET 2.0 Databases   by Thiru Thangarathinam, is printed with permission from
Wrox Publication.
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Validation Groups

In ASP.NET 1.x, you would assign validation controls to input controls such as text boxes, password fields, radio buttons, and check boxes, and the validation controls would automatically validate the data entered by an end user to input controls. With ASP.NET 2.0, Microsoft introduces a new feature known as validation groups, which enables you to create different groups of validation controls and assign them to input controls, such as text boxes. You can assign a validation group to a collection of input controls if you want to validate the collection of input controls on the same criteria. For example, you can assign the button control to a group of input controls and validate the data entered to each group of input controls on a criterion. This feature is very handy when you have multiple forms on a single web page. For example, you can create a web page that contains login and password text boxes for registered end users, and another set of controls for new end users to register with the web site. In this case, you can use the validation group property to perform different actions, such as logging on to the web site and registering an end user.

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