jQuery验证-仅当填充另一个字段时才需要字段 [英] jQuery Validation - require field only if another field is filled

问题描述

可能重复:
JQuery验证-如果复选框已选中则为必需

Possible Duplicate:
JQuery validation-select required if checkbox checked

我正在使用jQuery Validation验证表单.我正在尝试提出一个规则，该规则将在填充一组特定字段中的某个字段时根据需要验证字段:

I'm validating a form with jQuery Validation. I'm trying to come up with a rule that will validate fields as required if a field in a particular set of fields is filled:

<form id="donate-form">
    <input type="text" name="full_name" required="required" /><br />
    <input type="text" name="address1" /><br />
    <input type="text" name="address2" /><br />
    <input type="text" name="city" /><br />
    <select name="state">
        <option value="">- State -</option>
        <option value="va">Virginia</option>
        <option value="md">Maryland</option>
    </select><br />
    <input type="text" name="zip" />
    <input type="submit" name="submit" />
</form>

所有地址字段都是可选的，除非有人填写地址1，城市，州，或邮政编码，否则都必须填写.

All address fields are optional unless someone fills out address1, city, state, or zip, then they should all be required.

推荐答案

示例

使用depends，填写您的要求.

var depends = function() {
    var vals = '';
    $('form > *').not(':eq(0)').each(function () {
        vals += $(this).val();
    });

    return vals.length > 0;
};

您应该将选择器更改为更具体的选项，以满足您的需求.即不是$('form')

You should change the selectors to something more specific to fit your needs. ie not $('form')

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