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Announcing DevExpress Universal v25.2
Developer Express Inc is proud to announce the immediate availability of its newest release, DevExpress v25.2. Built and optimized for desktop, web, and mobile developers alike...

DevExpress Wins 20 Visual Studio Reader's Choice Awards
Like previous years, DevExpress dominated Visual Studio Magazine's 2025 Readers Choice Awards. We thank all our loyal users for casting their vote on behalf of DevExpress.

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DevExpress UI for Blazor - Preview 7 - New Features (Now Available)

DevExpress UI for Blazor - Preview 7 - New Features (Now Available)

Preview 7 of the DevExpress UI for Blazor is now available and it includes three big features...

The DevExpress Team

28 May 2019

ASP.NET ASP.NET Core Blazor Bootstrap RazorComponents validation

XAF - Validation Module Enhancements for Windows and the Web (Coming soon in v15.2)

XAF - Validation Module Enhancements for Windows and the Web (Coming soon in v15.2)

In our upcoming release of the eXpressApp Framework, data validation occurs immediately after input focus changes when validation rule evaluation does not require querying additional data from the server. These rules are RuleRequiredField , RuleRegularExpression...

Dennis Garavsky (DevExpress)

24 November 2015

15.2 ASP.NET client-side desktop immediate Validation Web WinForms

Webinar “Custom Validation in ASP.NET MVC” available on YouTube

Webinar “Custom Validation in ASP.NET MVC” available on YouTube

The webinar on how to create reusable validation attributes with your own custom validation logic is available here : You will learn how to create a custom validation attribute, and how to perform server-side as well as client-side validation including...

Don Wibier (DevExpress)

20 May 2015

asp.net MVC Validation Webinar

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