在jquery.validate.js methods添加依赖关系的验证方法

 

在jquery.validate.js 的methods: 中添加验证方法：

 

当input A有内容时 input B必须也要输入内容，那么可以加上验证JS，然后在input标签中调用 matchIntTo="#inputA"

 

在jquery.validate.js 的methods: 开始处添加下列代码：

 

// add by mengx on 2014.11.11

matchIntTo: function( value, element, param ) {

// bind to the blur event of the target in order to revalidate whenever the target field is updated

// TODO find a way to bind the event just once, avoiding the unbind-rebind overhead

var target = $(param);

if ( this.settings.onfocusout ) {

target.unbind(".validate-matchIntTo").bind("blur.validate-matchIntTo", function() {

if(target.val()=="") target.val(0);

$(element).valid();

});

}

var tval = target.val();

//如果数字>0则必须输入内容，如果数字＝0则不需要输入内容

return (tval!="" && value.length>0) || (value=="" && (tval=="" || tval==0));

},

matchTextTo: function( value, element, param ) {

// bind to the blur event of the target in order to revalidate whenever the target field is updated

// TODO find a way to bind the event just once, avoiding the unbind-rebind overhead

var target = $(param);

if ( this.settings.onfocusout ) {

target.unbind(".validate-matchTextTo").bind("blur.validate-matchTextTo", function() {

$(element).valid();

});

}

var tval = target.val();

return (tval!="" && value.length>0) || (tval=="" && value.length==0)

},

 

 

 

使用举例：

<p class="nowrap">

       <label>抓获逃犯（名）：</label>

       <input id="inputA" name="instance.taofanNum" value="${instance.taofanNum}" type="text" size="30" class="digits" />

</p>

<p class="nowrap">

       <label>抓获逃犯描述：</label>

       <input matchIntTo="#inputA" name="instance.taofanComment" rows="5" cols="75" />

</p>