http://www.netfxguide.com/rss/wpf_validation.aspxThis is the syndication feed for NetFXGuide.com - WPF Validation.Josh Smith demonstrates how to perform input validation using regular expressions, in a Windows Presentation Foundation application.http://www.netfxguide.com/resources/_533_regex_validation_in_wpf.aspx18/09/2006 22:53:25Paul Stovell about using the built-in Validation classes that exist in Windows Presentation Foundation. He also discusses an alternative approach to validation that might suit a richer domain layer, by creating a custom WPF ErrorProvider.http://www.netfxguide.com/resources/_532_validation_in_windows_presentation_foundation.aspx18/09/2006 22:52:04