Take advantage of automatic model state validation in ASP.Net Core to avoid tedious manual coding for HTML form validation When we create applications that accept data from users, we must validate ...

Writing code to validate Web-form input can be even more of a chore than implementing form-processing logic. But help is at hand, thanks to the Struts 2 framework. Oleg Mikheev looks under the hood of ...

Public Class WithinDaysValidator Inherits DataAnnotationsModelValidator(Of WithinDaysAttribute) Private _priorDays As Integer Private _subsequentDays As Integer Private _message As String Public Sub ...