If you are not aware of XHTML, related standards, and whether XHTML output is an important feature for your web site, please refer to the following pages:

Our ASP.NET products render HTML code that allows them to look and behave properly and uniformly within web pages using one of the following document types:

  • XHTML 1.0 Transitonal
  • XHTML 1.0 Strict
  • HTML5

HTML code generated by DevExpress ASP.NET controls is designed to fully comply with the XHTML 1.0 Transitional specification. In the other supported document types, our code works well but may not fully pass markup validation.

We do our best to render 100% XHTML compliant code in all possible control usage scenarios, but there are a few instances when it is simply impossible to do so. These instances fall into two main categories, i.e. two main reasons to render incompliant code. The first reason is cross-browser compatibility support. Certain browsers don't fully support valid XHTML markup. The second reason is to provide advanced features that can't be implemented with valid XHTML code. In such instances, you can choose between having valid code or using the required feature.


Chat is one of the many ways you can contact members of the DevExpress Team.
We are available Monday-Friday between 7:30am and 4:30pm Pacific Time.

If you need additional product information, write to us at info@devexpress.com or call us at +1 (818) 844-3383


DevExpress engineers feature-complete Presentation Controls, IDE Productivity Tools, Business Application Frameworks, and Reporting Systems for Visual Studio, Delphi, HTML5 or iOS & Android development. Whether using WPF, ASP.NET, WinForms, HTML5 or Windows 10, DevExpress tools help you build and deliver your best in the shortest time possible.

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