Grid View for ASP.NET MVC - How to implement client-side unobtrusive validation using a custom attribute

Follow the steps below to implement unobtrusive client-side validation:

1. Create a ValidationAttribute class descendant.
2. Implement the IClientValidatable interface for this class to enable client validation.
3. Write a custom adapter based on custom parameters that are passed from the server.
4. Add a custom validation method.

Wrap the Grid View extension in a <form> element that can be rendered with Html.BeginForm(). Validation scripts will be automatically registered on a callback.

@using (Html.BeginForm("Index", "Home", FormMethod.Post, new { id = "frm" })) {
    @Html.Action("GridViewPartial")
}

Files to Review

• HomeController.cs (VB: HomeController.vb)
• CustomAttribute.cs (VB: CustomAttribute.vb)
• Person.cs (VB: Person.vb)
• _GridViewPartial.cshtml
• Index.cshtml

Documentation

• Unobtrusive Client Validation

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