jQuery easyui's validatebox validation rule expansion and easyui validation box validatebox usage_jquery

First, let me share with you the data verification display effect

Web front-end data verification component

The interaction between the client and the server in a web project is inseparable from the Form form. The most commonly used element in the Form form is the input tag. The first thing to use for the input tag must be the text text box!

The input text box allows users to input arbitrarily. It is inevitable that users will input some data that does not meet the regulations. At this time, it is necessary to verify the data before submitting it. If you wait until it is submitted to the server and then verify it, It will greatly reduce the user experience.

There are many ready-made components for front-end verification. One of the more useful ones is EasyUI's validatebox plug-in. The prompt interface is quite friendly, but the validation rules provided by validatebox by default are relatively limited. Sometimes we need to add our own validation rules.

rules: { 
email:{ 
validator: function(value){ 
return ...?$/i.test(value); 
}, 
message: 'Please enter a valid email address.' 
}, 
url: { 
validator: function(value){ 
return ...?$/i.test(value); 
}, 
message: 'Please enter a valid URL.' 
}, 
length: { 
validator: function(value, param){ 
var len = $.trim(value).length; 
return len >= param[0] && len <= param[1] 
}, 
message: 'Please enter a value between {0} and {1}.' 
}, 
remote: { 
validator: function(value, param){ 
var data = {}; 
data[param[1]] = value; 
var response = $.ajax({ 
url:param[0], 
dataType:'json', 
data:data, 
async:false, 
cache:false, 
type:'post' 
}).responseText; 
return response == 'true'; 
}, 
message: 'Please fix this field.' 
} 
}

Customized verification rules

When adding new verification rules, it is best not to do it in the source files of EasyUI. The first is to avoid contaminating the EasyUi source code due to misoperation, and more importantly, it is easy to upgrade components in the future. So the most reasonable way is to write your own expansion file separately.

For example: I added the following three checks based on the original rules, in a separate file easyui-extend-rcm.js:

(function($) { 
/** 
* jQuery EasyUI 1.4 --- 功能扩展 
* 
* Copyright (c) 2009-2015 RCM 
* 
* 新增 validatebox 校验规则 
* 
*/ 
$.extend($.fn.validatebox.defaults.rules, { 
idcard: { 
validator: function(value, param) { 
return idCardNoUtil.checkIdCardNo(value); 
}, 
message: '请输入正确的身份证号码' 
}, 
checkNum: { 
validator: function(value, param) { 
return /^([0-9]+)$/.test(value); 
}, 
message: '请输入整数' 
}, 
checkFloat: { 
validator: function(value, param) { 
return /^[+|-]?([0-9]+\.[0-9]+)|[0-9]+$/.test(value); 
}, 
message: '请输入合法数字' 
} 
}); 
})(jQuery); 

How to use custom rules

In addition to the EasyUI files in 93f0f5c25f18dab9d176bd4f6de5d30e, you must also introduce your own extension files, in order after the EasyUI files:

<pre name="code" class="javascript">
<span style="font-size:18px;">
<script src="#WEBROOT()/static/jseasyui/jquery.easyui.min.js" type="text/javascript" ></script> 
<script src="#WEBROOT()/static/js/comm/easyui-extend-rcm.js" type="text/javascript"></script>
</span> 

Then reference it as follows in Html. Be sure to add two attributes: Class and data-options:

<pre name="code" class="html"><span style="font-size:18px;"><div id="dlg" class="easyui-dialog" style="width:300px; height:300px; vertical-align: middle;" closed="true" title='添加中药' buttons="#dlg-buttons"> 
<div id="editForm" style="background:'';padding:20px;width:200px;height:200px; display:none;"> 
<form id="form" method="post"> 
<div style="padding-left:16px;padding-top:20px;" hidden="true"> 
<input type="text" name="dlg_drugId" id="dlg_drugId" hidden="true" /> 
</div> 
<div style="padding-top:10px;padding-left:40px;"> 
<label for="dlg_name">药物:</label> 
<input type="text" name="dlg_name" id="dlg_name" class="easyui-validatebox" readonly="readonly" /> 
</div> 
<div style="padding-top:10px;padding-left:40px;"> 
<label for="dlg_price">单价:</label> 
<input type="text" name="dlg_price" id="dlg_price" <span style="color:#ff0000;">class="easyui-validatebox" data-options="required:true,validType:'checkFloat'"</span> /> 
</div> 
<div style="padding-top:10px;padding-left:40px;"> 
<label for="dlg_purchase_price">进价:</label> 
<input type="text" name="dlg_purchase_price" id="dlg_purchase_price" <span style="color:#ff0000;">class="easyui-validatebox" data-options="validType:'checkFloat'"</span> /> 
</div> 
<div style="padding-top:10px;padding-left:40px;"> 
<label for="dlg_stock">库存:</label> 
<input type="text" name="dlg_stock" id="dlg_stock" <span style="color:#ff0000;">class="easyui-validatebox" data-options="validType:'checkNum'"</span> /> 
</div> 
<div style="padding-top:10px;padding-left:40px;" align="center"> 
<input type="button" value="保存" onclick="saveTCMDrugPublicMapped()" class="bt_style" /> 
</div> 
</form> 
</div> 
</div></span> 

Detailed explanation of jQuery easyui validation box validatebox usage

JQuery EasyUI ValidateBox provides us with a very convenient method for form verification

<input id="vv" required="true" validType="email">

Attributes

Attribute name	Type	Description	Default value
required	Boolean	Defines whether the text field is required	false
validType	String	Define field validation types such as email, url, etc.	null
missingMessage	String	Text information prompted when the text box is empty	This field is required
invalidMessage	String	Text information prompted when the content of the text box is illegal	null

Method

Method name	Parameters	Description
destroy	none	Delete and destroy the component
validate	none	Do verification to determine whether the content of the text box is valid
isValid	none	调用验证方法并返回验证结果，true或者false

注意这里除了required属性外,若validType属性失败.并不会阻止表单提交..所以我们这里如果要阻止表单提交，就又要利用jquery ui提交的表单方法

具体写法是

$(":submit").click(function(){
if(!$("#form").form('validate')){
return false;
}
})
#form是<form>表单的ID