The necessity of validation a field in a form using AJAX it’s really common. Sometimes it can give a little work but the ASP.NET NET 3/4 has one attribute to help us for this kind of work.
Here is a simple demonstration of how to check if a username already exists in the system. Because the username should be unique.
Continue reading ASP.NET MVC Tricks (Remote Validation)
What is reCaptcha ?
reCaptcha, it’s an anti-bot service, in other words checks if it was a human or a bot submitting a form. But it also has another utility, when we are using this service we are helping on digitize of books.
Here is an explanation of how it works. (Link)
If you want to learn more about this you should spend 15 mins of your day, watching this Ted Talk.
Continue reading reCaptcha + Asp.Net MVC 3/4