How to disable the submit of a form by "Enter" - C # MVC

Without javascript I find it difficult to achieve, you will need a script Client Side to check the click. With jQuery you can do the following:

$(document).ready(function() {
    $('form#exemplo').bind("keypress", function(e) {
        if ((e.keyCode == 10)||(e.keyCode == 13)) {
            e.preventDefault();
        }
    });
});

or

$(document).ready(function() {
    $('form#exemplo').keypress(function(e) {
        if ((e.keyCode == 10)||(e.keyCode == 13)) {
            e.preventDefault();
        }
    });
});

If you have a Submit button on your form it should be marked as "default" and the action of typing Enter will execute the marked component as such.

You can also turn the submit into button.

<input type='button'>

And submit the form via JS.

$('#form_id').submit();