我创建了以下表单并进行了验证:http : //jsfiddle.net/baumdexterous/NNHU2/
我要验证的所有项目都可以正常工作,但是我不确定如何验证状态下拉字段。
如果状态字段留为空白,我又该如何使状态字段成为必填字段?
的HTML
<label>State<br>
<select name="State">
<option value="" selected="selected">Select a State/ Province</option>
<option value="AL">Alabama</option>
<option value="AK">Alaska</option>
<option value="AZ">Arizona</option>
<option value="AR">Arkansas</option>
<option value="CA">California</option>
<option value="CO">Colorado</option>
<option value="CT">Connecticut</option>
<option value="DE">Delaware</option>
<option value="DC">District Of Columbia</option>
<option value="FL">Florida</option>
<option value="GA">Georgia</option>
<option value="HI">Hawaii</option>
<option value="ID">Idaho</option>
<option value="IL">Illinois</option>
<option value="IN">Indiana</option>
<option value="IA">Iowa</option>
<option value="KS">Kansas</option>
<option value="KY">Kentucky</option>
<option value="LA">Louisiana</option>
<option value="ME">Maine</option>
<option value="MD">Maryland</option>
<option value="MA">Massachusetts</option>
<option value="MI">Michigan</option>
<option value="MN">Minnesota</option>
<option value="MS">Mississippi</option>
<option value="MO">Missouri</option>
<option value="MT">Montana</option>
<option value="NE">Nebraska</option>
<option value="NV">Nevada</option>
<option value="NH">New Hampshire</option>
<option value="NJ">New Jersey</option>
<option value="NM">New Mexico</option>
<option value="NY">New York</option>
<option value="NC">North Carolina</option>
<option value="ND">North Dakota</option>
<option value="OH">Ohio</option>
<option value="OK">Oklahoma</option>
<option value="OR">Oregon</option>
<option value="PA">Pennsylvania</option>
<option value="RI">Rhode Island</option>
<option value="SC">South Carolina</option>
<option value="SD">South Dakota</option>
<option value="TN">Tennessee</option>
<option value="TX">Texas</option>
<option value="UT">Utah</option>
<option value="VT">Vermont</option>
<option value="VA">Virginia</option>
<option value="WA">Washington</option>
<option value="WV">West Virginia</option>
<option value="WI">Wisconsin</option>
<option value="WY">Wyoming</option>
</select>
</label>
的JavaScript
function validateForm(thisform) {
if (thisform.f_name.value == "" || thisform.email.value == "" || thisform.l_name.value == "" || thisform.State.value == "" || !thisform.officialrules.checked) {
return false;
}
}
$(function () {
if (/Android|webOS|iPhone|iPad|iPod|BlackBerry|IEMobile|Opera Mini/i.test(navigator.userAgent)) {
$("#prod").text("true");
mob = true;
zoom = $(window).width() / 810;
$("#main").css('zoom', zoom);
$(window).resize(function () {
zoom = $(window).width() / 810;
$("#main").css('zoom', zoom);
});
}
$(".enter").click(function (event) {
personal_data = true;
for (var i = 0; i < $("input[placeholder]").length; i++) {
if ($("input[placeholder]").not("#checkbox2").eq(i).val() == "") {
$("input[placeholder]").eq(i).addClass('active_placeholder').focus();
$("#drawer").html($("input[placeholder]").eq(i).attr("placeholder"));
personal_data = false;
correct_pd();
return false;
}
}
if (!$("#checkbox2").parent().hasClass("active")) {
$("#checkbox2").parent().next().css
$("#check_box > p").eq(1).addClass('active');
$("#checkbox2").parent().addClass('bg_red');
setTimeout(function () {
$("#checkbox2").parent().removeClass('bg_red');
}, 500);
$("#drawer").html($("#checkbox2").attr("placeholder"));
personal_data = false;
correct_pd();
}
});
function correct_pd() {
if (!personal_data) {
if ($("#drawer").css("margin-top") == "-60px") {
$("#drawer").stop(true, true).css("margin-top", 0).animate({
opacity: 1
}, 250, function () {
setTimeout(function () {
$("#drawer").css("margin-top", -60);
}, 1500)
})
}
}
}
$("input[type='checkbox']").change(function (event) {
if ($(this).is(":checked")) {
$(this).parent().addClass('active');
$("#check_box > p").eq(1).removeClass('active');
} else {
$(this).parent().removeClass('active');
}
}).change();
});
如果条件添加此:
if($('select[name="State"]').find('option:first-child').is(':selected')){
$('select[name="State"]').addClass('active_placeholder').focus();
return false;
}
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