How can I set a size for html.EditorFor helper?

Question

What is the simplest way to set the size of the generated field?

Answer 1

Using CSS:

<div class="foo">
    <%= Html.EditorFor(x => x.Foo) %>
</div>

and in your CSS file:

.foo input {
    width: 200px;
}

You could also implement a custom DataAnnotationsModelMetadataProvider which would allow you to attach any attributes you like to the generated input field such as class, maxlength, size, ...