JQUERY+CSS implementation drop-down list (update)

Last Update:2017-09-10 Source: Internet

Author: User

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I. Overview

The drop-down list implemented by JQUERY+CSS is more flexible than the Select drop-down list, and the second part of the code is the implementation of the drop-down list.

Second, the Code

The drop-down list works as follows:

The options for the drop-down list are dynamic append, using the On method, the event delegation mechanism, and the response option for the Click event.

After testing, the following code will work correctly in Firefox 55.0 and Safari 10.1.1.

Description: This update adds scroll bars to the dropdown option compared to previous versions.

Note: Make sure that jquery is working properly.

<! DOCTYPE html>

<title>selector</title>

. Hide {

Display:none;

}

div {

Float:left;

width:100%;

}

. selector-containter {

margin-bottom:10px;

}

. selector {

width:200px;

Background: #FFF;

border:1px solid #DDD;

}

. selector Div {

height:20px;

line-height:20px;

padding:10px 0 10px 0;

}

. selector-hint {

width:158px;

border:1px solid #DDD;

border-right:0px;

}

. selector-expand {

width:38px;

border:1px solid #DDD;

Text-align:center;

}

. selector-collapse {

width:38px;

border:1px solid #DDD;

Text-align:center;

}

. selector-option-container {

width:200px;

height:80px!important;

padding:0px!important;

OVERFLOW-Y: scroll;

}

. Selector-option-container Div {

border-bottom:1px solid #E8E8E8;

}

. selector-option {

width:160px;

Height:auto;

min-height:20px;

}

. selector-checkbox-container {

width:18px;

}

. selector-checkbox {

height:12px;

padding:0;

margin:0;

}

</style>

$ (document). Ready (function () {

$ ('. Selector '). Append (' <div class= "selector-hint" >select fruit</div> ');

$ ('. Selector '). Append (' <div class= "Selector-expand" >+</div> ");

$ ('. Selector '). Append (' <div class= "selector-collapse Hide" >-</div> ");

$ ('. Selector '). Append (' <div class= "Selector-option-container Hide" ></div> ");

Using the on method, the event delegation mechanism is used, and the content in the Selector-option-container is appended dynamically.

$ ('. Selector '). On (' click ', '. Selector-expand ', function () {

$ (this). Nextall ('. Selector-option-container '). Children (). remove ();

$ ('. Selector-option-container '). Children (). remove ();

$.each ([' Apricot ', ' banana ', ' pear ', ' melo '], function (index, value) {

$ ('. Selector-option-container '). Append (' <div class= "Selector-checkbox-container" ><input type= "checkbox" Name= "Fruitgroup" class= "Selector-checkbox"/></div><div class= "selector-option" > ' + value + ' </div > ');

});

$ (this). addclass (' hide ');

$ (this). Next (). Removeclass (' hide ');

$ (this). Nextall ('. Selector-option-container '). Removeclass (' hide ');

});

$ ('. Selector '). On (' click ', '. Selector-collapse ', function () {

$ (this). addclass (' hide ');

$ (this). Prev (). Removeclass (' hide ');

$ (this). Nextall ('. Selector-option-container '). addclass (' hide ');

});

$ ('. Selector-t1 '). On (' click ', '. Selector-option ', function () {

$ (this). Parent (). Parent (). Children ('. Selector-hint '). Text ($ (this). text ());

$ (this). Parent (). addclass (' hide ');

$ (this). Parent (). Prev (). addclass (' hide ');

$ (this). Parent (). Prev (). Prev (). Removeclass (' hide ');

});

$ ('. Selector-t1 '). On (' click ', '. Selector-checkbox ', function () {

$ (this). Parent (). Parent (). children ('. Selector-hint '). Text ($ (this). Parent (). Next (). text ());

Use the Prop method to assign a value to a Boolean-valued property

$ (this). Prop (' checked ', false);

$ (this). Parent (). Parent (). addclass (' hide ');

$ (this). Parent (). Parent (). Prev (). addclass (' hide ');

$ (this). Parent (). Parent (). Prev (). Prev (). Removeclass (' hide ');

});

</script>

<body>

<div>

</div>

<div>

</div>

</body>

JQUERY+CSS implementation drop-down list (update)

This article is an English version of an article which is originally in the Chinese language on aliyun.com and is provided for information purposes only. This website makes no representation or warranty of any kind, either expressed or implied, as to the accuracy, completeness ownership or reliability of the article or any translations thereof. If you have any concerns or complaints relating to the article, please send an email, providing a detailed description of the concern or complaint, to info-contact@alibabacloud.com. A staff member will contact you within 5 working days. Once verified, infringing content will be removed immediately.

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