asp.net mvc 4 - ClientValidationEnabled and UnobtrusiveJavaScriptEnabled in MVC 4

Question

In MVC 4, in order to enable client side validation in a view, should both keys ClientValidationEnabled and UnobtrusiveJavaScriptEnabled be true in web.config?

WEB.CONFIG

<add key="ClientValidationEnabled" value="true" />
<add key="UnobtrusiveJavaScriptEnabled" value="true" />

Answer 1

Can also be through the controller:

//Enable or Disable Client Side Validation at Application Level
HtmlHelper.ClientValidationEnabled = true;
HtmlHelper.UnobtrusiveJavaScriptEnabled = true;