How can we enable data annotation validation on client side in MVC?

 This can be done in two steps.

 Step 1:

  In this step we will add necessary Jquery files.

 <script src="<%= Url.Content("~/Scripts/jquery-1.5.1.js") %>" type="text/javascript"></script>
<script src="<%= Url.Content("~/Scripts/jquery.validate.js") %>" type="text/javascript"></script>
<script src="<%= Url.Content("~/Scripts/jquery.validate.unobtrusive.js") %>" type="text/javascript"></script> 
Step -2 :

   In this step to call the EnableClientValidation method.

 <% Html.EnableClientValidation(); %>
After completing these two steps , you can see the validation message.

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