The goal of the IClientValidatable interface is to let you extend your server-side DataAnnotations with client-side functions in ASP.NET MVC 3. For instance, a Data Annotation that ensured that a ...

Writing code to validate Web-form input can be even more of a chore than implementing form-processing logic. But help is at hand, thanks to the Struts 2 framework. Oleg Mikheev looks under the hood of ...

Here's how to integrate the ASP.NET CustomValidator control with client-side code to create a page that uses Ajax and server-side code to validate data at the browser. In a comment to a tip in our ...

The world of JavaScript frameworks keeps growing. One of the latest entrants, jsblocks, is positioned as more powerful than Backbone and faster or more flexible than React, Meteor, and AngularJS. An ...

A new JavaScript API aims to facilitate limited local filesystem access in Web applications. A draft that documents the new API, authored by Mozilla's Arun Ranganathan, has been submitted to the World ...

<asp:TextBox ID="tbFirstName" runat="server" CausesValidation="true" style="width: 50%;" /> <asp:RequiredFieldValidator ID="rfvFirstName" runat="server ...