如何禁用asp.net MVC中某些字段的客户端验证

[HttpPost]
[ValidateInput(false)]
public ActionResult Save(MyModel model)
{
    // 保存模型
}

public class MyModel
{
    [AllowHtml]
    public string Description { get; set; }
}

@using (Html.BeginForm(FormMethod.Post, new { @id = "myForm" }))
{
    @Html.TextAreaFor(m => m.Description)
   <input type="submit" value="Save" />
}

$("#myForm").removeData("unobtrusiveValidation");
$("#myForm").validate({
    rules: {
        "Description": {
            required: false
        }
    }
});

public class CustomModelBinder : DefaultModelBinder
{
    protected override void OnModelUpdated(ControllerContext controllerContext, ModelBindingContext bindingContext)
    {
        // 禁用客户端验证
        bindingContext.ModelState.ClearValidationState();
        base.OnModelUpdated(controllerContext, bindingContext);
    }
}

[HttpPost]
public ActionResult Save([ModelBinder(typeof(CustomModelBinder))] MyModel model)
{
    // 保存模型
}