如何添加“依赖项" jQuery Validation插件中的valueNotEquals规则的条件? [英] How to add a "depends" condition on valueNotEquals rule in jQuery Validation plugin?

问题描述

我在jQuery Validation插件中使用"depend"，以便仅在特定情况下应用某些验证规则.这是我在某些情况下仅需要字段required时使用的代码.

I use the "depend" in jQuery Validation plugin in order to apply some validation rules only in specific cases. This is the code I use to do it in case I want a field required only under certain circumstances.

 fieldA: {
required: {depends: function () {
        return $('#FormName select[name="fieldB"]').val() === '10';
    }}
 }

如果我想使用valueNotEquals规则，则语法如下:

In case I want to use the valueNotEquals rule I have a syntax like this:

fieldA:
 {valueNotEquals: "0"}

如果我想使用"depends"，正确的语法是什么?两次尝试都给出了错误和语法错误.

If I want to use "depends", what is the right syntax? These two attempts gave error and syntax error.

温度1 (错误，因为我无法表明它不能等于什么值)

Attemp 1 (error for I could not indicate WHAT value it must not equals)

fieldA:
     {valueNotEquals: {depends: function () {
         return $('#QuestionarioForm select[name="lavoroMadre"]').val() === '10';}}

尝试2 (语法错误)

fieldA:
     {valueNotEquals: "0" {depends: function () {
         return $('#QuestionarioForm select[name="lavoroMadre"]').val() === '10';}}

推荐答案

您的代码:

fieldA:
 {valueNotEquals: "0"}

引用标题:

如何在jQuery Validation插件中的valueNotEquals规则上添加依赖"条件?"

您的代码无法正常工作，因为jQuery Validate插件中没有称为valueNotEquals 的规则或方法.

Your code is not working because there is no such rule or method called valueNotEquals in the jQuery Validate plugin.

已记录的规则和方法: http://jqueryvalidation.org/category/methods/

您必须使用 addMethod() 编写自己的自定义规则:

jQuery.validator.addMethod("valueNotEquals", function(value, element, params) {
    return this.optional(element) || (value != params[0]);
}, "Please specify a value that is not equal to {0}");

并声明规则:

fieldA: {
    valueNotEquals: [0]
}

自定义方法的演示: http://jsfiddle.net/cF3p5/

现在您无需使用depends.只需编辑此自定义函数，使其表现出所需的效果即可.也许更像这样...

Now you wouldn't need to use depends. Simply edit this custom function so that it behaves as you want. Maybe something more like this...

jQuery.validator.addMethod("valueNotEquals", function(value, element, params) {
    if ($('#QuestionarioForm select[name="lavoroMadre"]').val() === params[1]) {
        return (value != params[0]);
    } else {
        return true;
    }
}, "Please specify a value that is not equal to {0}");

并声明规则:

fieldA: {
    valueNotEquals: [0, 10]
}

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