I'm using the remote validation in MVC 3, but it seems to fire any time that I type something, if it's the second time that field's been active. The problem is that I have an autocomplete box, so they might click on a result to populate the field, which MVC views as "leaving" it.
Even apart from the autcomplete thing, I don't want it to attempt to validate when they're halfway through writing. Is there a way that I can say "only run validation n milliseconds after they are finished typing" or "only run validation on blur?"
MVC 3 relies on the jQuery Validation plugin for client side validation. You need to configure the plugin to not validate on key up.
You can switch it globally off using
$.validator.setDefaults({
onkeyup: false
})
See http://docs.jquery.com/Plugins/Validation/Validator/setDefaults and the onkeyup option here http://docs.jquery.com/Plugins/Validation/validate.
For future reference, I found it's possible to do this in combination with the typeWatch plugin (http://archive.plugins.jquery.com/project/TypeWatch).
Basically what you want to do is (in my case for a slug):
/*Disable keyup validation on focus and restore it to onkeyup validation mode on blur*/
$("form input[data-val-remote-url]").on({
focus: function () {
$(this).closest('form').validate().settings.onkeyup = false;
},
blur: function () {
$(this).closest('form').validate().settings.onkeyup = $.validator.defaults.onkeyup;
}
});
$(function () {
/*Setup the typeWatch for the element/s that's using remote validation*/
$("#Slug").typeWatch({ wait: 300, callback: validateSlug, captureLength: 5 });
});
function validateSlug() {
/*Manually force revalidation of the element (forces the remote validation to happen) */
var slug = $("#Slug");
slug.closest('form').validate().element(slug);
}
If you're using the vanilla typeWatch plugin, you'll have to setup a typeWatch for every element because the typeWatch callback doesn't give you access to the current element via $(this), it only passes the value.
Alternatively you can modify the typeWatch plugin to pass in the element (timer.el) and then you can apply a delay to all.
For some reason (maybe because of conflicts with the unobtrusive plugin), hwiechers' answer didn't work for me. Instead, I had to get the validator of my form with .data('validator')
(as mentioned in this answer) and set onkeyup
to false
on it.
var validator = $('#form').data('validator');
validator.settings.onkeyup = false;
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