Which three actions should you perform?

You need to enable client-side validation for an ASP.NET MVC application.

Which three actions should you perform? Each correct answer presents part of the solution.
A . Attach a custom validation attribute to the model properties that the view uses.
B . Reference the jquery, jquery.validate and jquery.validate.unobtrusive script files in the view.
C . Open the web.config file at the project root, and set the values of the ClientValidationEnabled and UnobtrusiveJavaScriptEnabled keys to True.
D . For each form element, use the Validator.element() method to validate each item.
E . Add data annotations to the model properties that the view uses.

View Answer

Answer: B,C,E

Explanation:

B: The validation can be implemented using jQuery and jQuery validation plug-in (jquery.validate.min.js and jquery.validate.unobtrusive.min.js).

C: When you are developing an MVC application in Visual Studio 2012 then the client-side becomes enabled by default, but you can easily enable or disable the writing of the following app setting code snippet in the web.config file.

<configuration>

<appSettings>

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

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

</appSettings>

</configuration>

E: The jQuery validation plug-in takes advantage of the Data Annotation attributes defined in the model, which means that you need to do very little to start using it.

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