Before you can save the page you have created as a Dynamic Web Template or DWT for short, you should make sure that both your HTML code and your CSS code validates.To understand WHY it is important to validate your code read Code Validation - Clean Code by Susan Emerson.As you continue to build your site and work on your pages, you should get in the habit of validating the page BEFORE you publish it.
XML has been designed for ease of implementation and for interoperability with both SGML and HTML.
This section describes the status of this document at the time of its publication. A list of current W3C publications and the latest revision of this technical report can be found in the W3C technical reports index at
Expression Web has some tools within the program that will help you with validating your page.
Much of this information will apply to Expression Web 3.0 as well as 4.0.
Now that you have some idea about data annotation attributes, let's develop a simple ASP.
NET MVC application that makes use of these attributes for data validation. NET MVC project and select the Empty project template.
Please refer to the errata for this document, which may include some normative corrections.
The previous errata for this document, are also available. This document is also available in these non-normative formats: XML and XHTML with color-coded revision indicators.
All of the above attributes also allow you to specify an error message that is displayed in the event of an error.