Custom ValidationSummary with Data Form - Silverlight 4

IntroductionThanks to all members.I have found many solutions for my issues from codeproject community and it's time for me to contribute!In this article I'm explaining how we can implement custom Validation Summary by hiding default validation summary of data form. BackgroundFollowing are the solutions I'm focusing:MVVM implementation with OOD principles.Domain layer design clues.Custom