show div if unobtrusive validation was invalid and hide it if Valid in MVC 3

Question

This is a part of my Edit view:

@Html.LabelFor(model => model.MainModel.StartDate)


@Html.TextBoxFor(model => model.Ma         


        

Answer 1

You can check for field validity with ModelState.IsValidField method

style="display:none"         
}>
     My content