如何使用jquery中的规则

时间:2009-07-30 07:16:13

标签: jquery css-selectors conditional-statements

您好我有一个简单的模态弹出窗口,其中有3个名称字段和3个电子邮件字段彼此相邻。我是jQuery的新手,所以任何人都可以帮助我如何编写以下案例的逻辑?

第一个名称字段和电子邮件字段是必填字段,因此我将该类保留为必填字段,但另外两个名称和电子邮件字段是可选的,但如果我在名称字段中输入值,则必须在“电子邮件”字段中输入值。换句话说,如果名称字段不为空,则电子邮件字段不应为空。如果有人能帮助我,请告诉我。

jQuery代码如下从ajax获取数据

function shareWithAFriend(itemId) {
        $.ajax({
            url: "shareWithAFriend.do?itemId="+itemId,
            type: "GET",
            success: function(html) {
                $("#tellInfoPop").html(html);
                $("#itemId").val(itemId);
                $("#emailFriend").validate({
                    errorClass: "formError",
                    errorContainer: "#referAFriendFormError",
                    errorLabelContainer: "#referAFriendFormError",
                    onfocusout: false,
                    wrapper: 'li',
                    messages: {
                        referName01: {
                            required: "<@spring.message "referAFriend.error.nameRequired"/>"
                        },
                        referEmail01: {
                            required: "<@spring.message "referAFriend.error.emailRequired"/>",
                            email: "<@spring.message "referAFriend.error.emailFormat"/>"
                        },
                        referEmail02: {
                            email: "<@spring.message "referAFriend.error.emailFormat"/>"
                        },
                        referEmail03: {
                            email: "<@spring.message "referAFriend.error.emailFormat"/>"
                        },
                        securityKey: {
                            required: "<@spring.message "referAFriend.error.securityRequired"/>"
                        }
                    },
                    groups: {
                        emailGroup: "referEmail01 referEmail02 referEmail03"
                    },

Html代码就像休闲一样

<div class="leftCol">
        <label for="emailToName1" class="formLabel"><span class="required">*</span>Name:</label>
      <div><input type="text" id="emailToName1" name="referName01" value="${referAFriendBean.referName01!}" class="required" tabindex="1" /></div>
      <div class="pad5Top"><input type="text" id="emailToName2" name="referName02" value="${referAFriendBean.referName02!}" tabindex="3" /></div>
      <div class="pad5Top"><input type="text" id="emailToName3" name="referName03" value="${referAFriendBean.referName03!}" tabindex="5" /></div>
    </div>

    <div class="rightCol">
        <label for="emailToAddress1" class="formLabel"><span class="required">*</span>Email address:</label>
      <div><input type="text" id="emailToAddress1" name="referEmail01" value="${referAFriendBean.referEmail01!}" class="required email" tabindex="2" /></div>
      <div class="pad5Top"><input type="text" id="emailToAddress2" name="referEmail02" class="email" tabindex="4" value="${referAFriendBean.referEmail02!}" /></div>
      <div class="pad5Top"><input type="text" id="emailToAddress3" name="referEmail03" class="email" tabindex="6" value="${referAFriendBean.referEmail03!}" /></div>
    </div>
  </div>

1 个答案:

答案 0 :(得分:0)

我认为您可以为可选的name元素添加一个事件处理程序,它将动态添加或删除所需的地址类。

我不知道我是否在这里选择了正确的ID,但你应该明白这个想法:

$('#emailToName2').keyup(function () {
    if ($(this).val()) {
        $('#emailToAddress2').addClass('required');
    } else {
        $('#emailToAddress2').removeClass('required');
    }
});

甚至是短版本,但如果您不熟悉jQuery,则可能性较差

$('#emailToName2').keyup(function () {
    $('#emailToAddress2').toggleClass('required', $(this).val());
});