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<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>LinkageSel: Infinite Level Linkage Select</title>
<link type="text/css" rel="stylesheet" href="css/common.css" />
<link type="text/css" rel="stylesheet" href="js/syntaxhighlighter/shCore.css" />
<link rel="stylesheet" type="text/css" href="js/syntaxhighlighter/shThemeDefault.css" />
<script src="js/jquery.js"></script>
</head>
<body>
<div style="position: absolute; top: 10px; right: 11px;"><a href="index.html">中文</a> | <a href="index_en.html">English</a> </div>
<div id="header"><h1>Javascript Infinite Level Linkage Select </h1></div>
<div class="main">
<h2>Overview</h2>
<ul>
<li>Multi level linkage, support ajax request and data cache, dynamic <select>construct, self defined tips as the first<option>,
the only one <option>selected automatically, self defined callback function when onChange event triggered.
</li>
</ul>
<h2>Requirement</h2>
<ul>
<li>jQuery v1.6+</li>
</ul>
<h2>License</h2>
<ul>
<li>
Dual licensed under the MIT and GPL licenses: <br>
<a href="http://www.opensource.org/licenses/mit-license.php">http://www.opensource.org/licenses/mit-license.php</a> <br>
<a href="http://www.gnu.org/licenses/gpl.html">http://www.gnu.org/licenses/gpl.html</a>
</ul>
<h2>Author</h2>
<ul>
<li><a target="_blank" href="http://linkagesel.xiaozhong.biz">waiting AT xiaozhong.biz</a></li>
</ul>
<h2>Update</h2>
<ul>
<li>See <a href="changes_en.txt" >changes</a></li>
</ul>
<h2>Download</h2>
<ul>
<li>
<a target="_blank" href="http://linkagesel.xiaozhong.biz/linkagesel.zip">linkagesel.zip</a> including chinese-district data
of js and postgres
</li>
<li>
<a target="_blank" href="https://github.com/waitingsong/LinkageSel">GitHub Repository</a>
</li>
</ul>
<h2>Settings</h2>
<ul>
<li>
Usage:
var linkageSel = new LinkageSel(opts);
</li>
<li>opts params：
<table width="90%" border="1" cellspacing="0" cellpadding="5" style="margin-top:10px" >
<tr>
<td width="12%" align="center">param name</td>
<td width="10%" align="center">type</td>
<td width="22%" align="center">default value</td>
<td width="4%" align="center">optional</td>
<td width="" align="center">comment</td>
</tr>
<tr>
<td>data</td>
<td>Object</td>
<td>null</td>
<td>√</td>
<td>local js data. can be used with 'ajax' param</td>
</tr>
<tr>
<td>url</td>
<td>String</td>
<td> </td>
<td>√</td>
<td>remote url address, get all data at one time</td>
</tr>
<tr>
<td>ajax</td>
<td>String</td>
<td> </td>
<td>√</td>
<td>remote url address for ajax</td>
</tr>
<tr>
<td>autoBind</td>
<td>Boolean</td>
<td>true</td>
<td>√</td>
<td>whether constrct next level <select> automatically</td>
</tr>
<tr>
<td>autoHide</td>
<td>Boolean</td>
<td>true</td>
<td>√</td>
<td>whether hide next levevl <select> which has not items</td>
</tr>
<tr>
<td>hideWidth</td>
<td>Boolean</td>
<td>true</td>
<td>√</td>
<td>whether release the postion width if set 'autoHide' to TRUE. (true->'display:none'||false-> 'visibility:hidden')</td>
</tr>
<tr>
<td>autoLink</td>
<td>Boolean</td>
<td>true</td>
<td>√</td>
<td>whether linkage to next level if only one item exists</td>
</tr>
<tr>
<td>defVal</td>
<td>Integer|Array</td>
<td>true</td>
<td>√</td>
<td>default selected value. integer for first <select>, array for multi <select> </td>
</tr>
<tr>
<td>head</td>
<td>String|Number|false</td>
<td>Please select..</td>
<td>√</td>
<td>the first <option> name. blank string ('') is valid</td>
</tr>
<tr>
<td>level</td>
<td>Integer</td>
<td>20</td>
<td>√</td>
<td>limit to avoid Infinite loop</td>
</tr>
<tr>
<td>loaderImg</td>
<td>String</td>
<td>images/ui-anim_basic_16x16.gif</td>
<td>√</td>
<td>ajax loader image</td>
</tr>
<tr>
<td>root</td>
<td>Integer|Array</td>
<td> </td>
<td>√</td>
<td>root entry. invalid for ajax request</td>
</tr>
<tr>
<td>select</td>
<td>String|Array</td>
<td> </td>
<td></td>
<td>jQuery selector of array of selector</td>
</tr>
<tr>
<td>selClass</td>
<td>String</td>
<td> </td>
<td>√</td>
<td>class name for <select> which is constructed by code</td>
</tr>
<tr>
<td>selStyle</td>
<td>String</td>
<td> </td>
<td>√</td>
<td>css style for <select> which is constructed by code</td>
</tr>
<tr>
<td>minWidth</td>
<td>Integer</td>
<td>120</td>
<td>√</td>
<td></td>
</tr>
<tr>
<td>maxWidth</td>
<td>Integer</td>
<td>300</td>
<td>√</td>
<td></td>
</tr>
<tr>
<td>fixWidth</td>
<td>Integer</td>
<td>0</td>
<td>√</td>
<td>override effect defined by minWidth or maxWidth</td>
</tr>
<tr>
<td>onChange</td>
<td>Function</td>
<td> </td>
<td>√</td>
<td>callback function when onChange event fired</td>
</tr>
<tr>
<td>mvcQuery</td>
<td>Boolean</td>
<td>false</td>
<td>√</td>
<td>ajax request url compatible to MVC when set to true,
eg. http://linkagesel.xiaozhong.biz/district/get_nodes/1 when 'ajax' set to 'district/get_nodes'
</td>
</tr>
<tr>
<td>dataReader</td>
<td>Object</td>
<td>{id: 'id', name: 'name', cell: 'cell'}</td>
<td>√</td>
<td>You can define othe data key name , such as {id: 'gid', name: 'value', cell: 'subcell'} </td>
</tr>
</table>
</li>
<li>
Method：
<table width="90%" border="1" cellspacing="0" cellpadding="5" style="margin-top:10px" >
<thead>
<td width="15%" align="center">method name</td>
<td width="20%" align="center">param and type</td>
<td width="8%" align="center">type of return</td>
<td width="8%" align="center">chainable</td>
<td width="" align="center">comment</td>
</thead>
<tr>
<td>changeValues</td>
<td>param1：Integer|Array <br /> param2: Boolean[option=false] </td>
<td>Object</td>
<td>√</td>
<td>change option value by hand. param2 to determine fire callback funcion bind on onChange event or not</td>
</tr>
<tr>
<td>getSelectedValue</td>
<td>idx：Integer</td>
<td>String</td>
<td> </td>
<td>return the value of the idx of <select> (begein from zero). the return value is from the last element if no param pass.
return null if all element no selected item.</td>
</tr>
<tr>
<td>getSelectedArr</td>
<td> </td>
<td>Array</td>
<td> </td>
<td>the return array include the value of all elements</td>
</tr>
<tr>
<td>getSelectedData</td>
<td>
key： String <br />
idx： Interger[option]
</td>
<td>Object</td>
<td> </td>
<td>get data of the selected item row. the return data will from the last elemnet which has valid selected item if pass zero to inx</td>
</tr>
<tr>
<td>getSelectedDataArr</td>
<td>key： String[option]</td>
<td>Array</td>
<td> </td>
<td>get all of the element object or object value which has selected item, stop at the one which has no seleted item.
if key is valid then return object[key] (type is int|string|null), if key not defined then return ojbect (typeis object|null)</td>
</tr>
<tr>
<td>onChange</td>
<td>callback: Function;</td>
<td> </td>
<td>√</td>
<td>callback function bind to onchange event on element.
the variable this inner the function refer to the instance of LinkageSel (See Demo2)</td>
</tr>
<tr>
<td>reset</td>
<td> </td>
<td> </td>
<td>√</td>
<td>reset to init status</td>
</tr>
<tr>
<td>resetAll</td>
<td> </td>
<td> </td>
<td>√</td>
<td>reset to init status, including defVal and data</td>
</tr>
</table>
</li>
</ul>
<h2 style="margin-top: 50px;">Demo</h2>
<div class="main">
<div class="lsdemo">
<h3><a name="demo1">Loading:</a></h3>
<pre class="brush: html">
<script src="js/jquery.js"></script>
<script src="js/comm.js"></script>
<script src="js/linkagesel-min.js"></script>
</pre>
</div>
<div class="lsdemo">
<h3><a>Data structure</a></h3>
<pre class="brush: js">
<script>
{
$id : {"name": $nameValue, "otherAttr": $otherAttrVal, "cell": { ... },
};
or
{
$id : {"id": $id, "name": $nameValue, "otherAttr": $otherAttrVal, "cell": { ... },
};
</script>
$id is sequence index, used at <option value="$id"></option> the value of the "value"
'name' is used at <optio>NAME<option>
'otherAttr' is optional other key name, such as 'price', 'zip'
'cell' is optional key name which contains sub data row
example:
var data1 = {
1: {name: 'Vegetables',
cell: {
10: {name: 'Spinach', price: 4 },
11: {name: 'Eggplant', price: 5}
}
};
or
var data1 = {
1: {id: 1, name: 'Vegetables',
cell: {
10: {id: 10, name: 'Spinach', price: 4 },
11: {id: 11, name: 'Eggplant', price: 5}
}
};
or
var data1 = {
123: {id: 1, name: 'Vegetables',
cell: {
234: {id: 10, name: 'Spinach', price: 4 },
345: {id: 11, name: 'Eggplant', price: 5}
}
};
Vegetables (id==1)
|-->Spinach (id==1, price==4)
|-->Eggplant (id==10, price==5)
</pre>
You can define the key name by yourself pass dataReader
</div>
<div class="lsdemo">
<h3>Demo1：Start simple one</h3>
<div><select id="demo1" ></select></div>
<div style="margin-top: 10px">
<input type="button" title="get value of the last valid one" value="button1" id="getSelectedValue"/> get value of the last one which has selected item <br />
<input type="button" title="" value="button2" id="getSelectedData"/> get last attribute value of the valid last
</div>
<pre class="brush: js">
<script>
$(document).ready(function(){
var data1 = {
1: {name: 'Vegetables', cell: { 10: {name: 'Spinach', price: 4 }, 11: {name: 'Eggplant', price: 5} }
},
3: {name: 'Fruit',
cell: {
20: {name: 'Apple', cell: {201: {name: 'china', price: 20} } } ,
21: {name: 'Peach',
cell: {
210: {name: 'Kiwi', price: 30},
211: {name: 'Nectarine', price: 31},
}
}
}
},
9: {name: 'Food',
cell: {
30: {name: 'Rice', cell: { 301: {name: 'USA', cell: {3001: {name: 'China', price: 50}} } } }
}
}
};
var opts = {
data: data1,
select: '#demo1'
};
var linkageSel1 = new LinkageSel(opts);
$('#getSelectedValue').click(function() {
var v = linkageSel.getSelectedValue();
alert(v);
});
$('#getSelectedData').click(function() {
var name = linkageSel.getSelectedData('name'),
price = linkageSel.getSelectedData('price');
alert('name:' + name + ' price:' + price);
});
});
</script>
</pre>
<script>
$(document).ready(function(){
var data1 = {
1: {name: 'Vegetables', cell: { 10: {name: 'Spinach', price: 4 }, 11: {name: 'Eggplant', price: 5} }
},
3: {name: 'Fruit',
cell: {
20: {name: 'Apple', cell: {201: {name: 'china', price: 20} } } ,
21: {name: 'Peach',
cell: {
210: {name: 'Kiwi', price: 30},
211: {name: 'Nectarine', price: 31},
}
}
}
},
9: {name: 'Food',
cell: {
30: {name: 'Rice', cell: { 301: {name: 'USA', cell: {3001: {name: 'China', price: 50}} } } }
}
}
};
var opts = {
data: data1,
select: '#demo1'
};
var linkageSel = new LinkageSel(opts);
$('#getSelectedValue').click(function() {
var v = linkageSel.getSelectedValue();
alert(v);
});
$('#getSelectedData').click(function() {
var name = linkageSel.getSelectedData('name'),
price = linkageSel.getSelectedData('price');
alert('name:' + name + ' price:' + price);
});
});
</script>
</div>
<div class="lsdemo">
<h3>Demo2：Chinese provience city 3 level chain, all data local, get attribute value on onChange</h3>
<div>
<select id="demo2" ></select>
</div>
<div style="margin-top: 10px">
<input type="text" value="Address" id="tip" size="50" />
</div>
<div style="margin-top: 10px">
<input type="button" title="" value="button3" id="getValueArr2"/> get the value of all <select> elements
</div>
<pre class="brush: js">
<select id="demo2"></select>
地址：<input type="text" value="tip" id="tip" size="50" />
<input type="button" value="button3" id="getValueArr2"/>
<script src="js/district-all.js"></script>
<script>
var opts = {
data: districtData, // 'districtData' is the variable name assign in district-all.js
selStyle: 'margin-left: 3px;',
select: '#demo2'
};
var linkageSel2 = new LinkageSel(opts);
districtData = opts = null;
$('#getValueArr2').click(function() {
var arr = linkageSel2.getSelectedArr();
alert(arr.join(','));
});
linkageSel2.onChange(function() {
var input = $('#tip'),
d = this.getSelectedDataArr('name'), // this refer to linkageSel2
zip = this.getSelectedData('zip'), // zip of the last elm
arr = [];
for (var i = 0, len = d.length; i < len; i++) {
arr.push(d[i]);
}
zip = zip ? ' zip:' + zip : '';
input.val(arr.join(' ') + zip);
});
</script>
</pre>
<script>
$(document).ready(function(){
var opts = {
data: districtData,
selStyle: 'margin-left: 3px;',
select: '#demo2',
dataReader: {id: 'id', name: 'name', cell: 'cell'}
};
var linkageSel2 = new LinkageSel(opts);
$('#getValueArr2').click(function() {
var arr = linkageSel2.getSelectedArr();
alert(arr.join(','));
});
linkageSel2.onChange(function() {
var input = $('#tip'),
d = this.getSelectedDataArr('name'),
zip = this.getSelectedData('zip'),
arr = [];
for (var i = 0, len = d.length; i < len; i++) {
arr.push(d[i]);
}
zip = zip ? ' zip:' + zip : '';
input.val(arr.join(' ') + zip);
});
});
</script>
</div>
<div class="lsdemo">
<h3>Demo3：Chinese provience city 3 level chain, all data from ajax request</h3>
<div>
<select id="demo3" ></select>
</div>
<pre class="brush: js">
<script>
var opts = {
ajax: 'district_crud.php?aj=15',
selStyle: 'margin-left: 3px;',
select: '#demo3'
};
var linkageSel3 = new LinkageSel(opts);
</script>
</pre>
<script>
$(document).ready(function(){
var opts = {
ajax: 'district_crud.php?aj=15',
selStyle: 'margin-left: 3px;',
select: '#demo3'
};
var linkageSel3 = new LinkageSel(opts);
});
</script>
</div>
<div class="lsdemo">
<h3>Demo4: 1st level local, others ajax get</h3>
<div>
<select id="demo4" ></select>
</div>
<pre class="brush: js">
<script>
var data4 = {2: {name: 'Beijing'}, 4:{name: 'Hebei province'} };
var opts4 = {
data: data4,
ajax: 'district_crud.php?aj=15', // ajax+local data
selStyle: 'margin-left: 3px;',
select: '#demo4'
};
new LinkageSel(opts4);
</script>
</pre>
<script>
$(document).ready(function(){
var data4 = {2: {name: 'Beijing'}, 4:{name: 'Hebei province'} };
var opts4 = {
data: data4,
ajax: 'district_crud.php?aj=15',
selStyle: 'margin-left: 3px;',
select: '#demo4'
};
new LinkageSel(opts4);
});
</script>
</div>
<div class="lsdemo">
<h3>Demo5: set default item</h3>
<div>
<select id="demo5" ></select>
</div>
<pre class="brush: js">
<script src="js/district-all.js"></script>
<script>
var opts5 = {
data: districtData,
selStyle: 'margin-left: 3px;',
select: ['#demo5'], // can be Array
defVal: [4]
};
var linkageSel5 = new LinkageSel(opts5);
</script>
</pre>
<script>
$(document).ready(function(){
var opts5 = {
data: districtData,
selStyle: 'margin-left: 3px;',
select: ['#demo5'],
defVal: 4
};
var linkageSel5 = new LinkageSel(opts5);
});
</script>
</div>
<div class="lsdemo">
<h3>Demo6: set default item, generate the 3rd element dynamically</h3>
<div>
<select id="demo61" ></select><select id="demo62" ></select>
</div>
<pre class="brush: js">
<select id="demo61"></select> <select id="demo62"></select>
<script>
var opts6 = {
data: districtData,
select: [ '#demo61', '#demo62' ], // two static
defVal: 4
};
var linkageSel6 = new LinkageSel(opts6);
</script>
</pre>
<script>
$(document).ready(function(){
var opts6 = {
data: districtData,
selStyle: 'margin-left: 3px;',
select: [ '#demo61', '#demo62'] ,
defVal: 4
};
new LinkageSel(opts6);
});
</script>
</div>
<div class="lsdemo">
<h3>Demo7：set default items by pass array</h3>
<div>
<select id="demo7" ></select>
</div>
<pre class="brush: js">
<select id="demo7"></select>
<script>
var opts7 = {
data: districtData,
selStyle: 'margin-left: 3px;',
select: '#demo7',
defVal: [5, 256] // array
};
var linkageSel7 = new LinkageSel(opts7);
</script>
</pre>
<script>
$(document).ready(function(){
var opts7 = {
data: districtData,
selStyle: 'margin-left: 3px;',
select: '#demo7' ,
defVal: [5, 256]
};
new LinkageSel(opts7);
});
</script>
</div>
<div class="lsdemo">
<h3>Demo8: define data entry</h3>
<div>
Shanxi Province: <select id="demo8" ></select>
</div>
<pre class="brush: js">
Shanxi Province: <select id="demo8"></select>
<script>
var opts8 = {
data: districtData,
root: 5, // entry
selStyle: 'margin-left: 3px;',
select: '#demo8'
};
var linkageSel8 = new LinkageSel(opts8);
</script>
</pre>
<script>
$(document).ready(function(){
var opts8 = {
data: districtData,
root: 5,
selStyle: 'margin-left: 3px;',
select: '#demo8'
};
new LinkageSel(opts8);
});
</script>
</div>
<div class="lsdemo">
<h3>Demo9: define data entry, multi default item by pass array</h3>
<div>
<div>
Shanxi Province: <select id="demo9"></select>
</div>
<pre class="brush: js">
Shanxi Province: <select id="demo9"></select>
<script>
var opts9 = {
data: districtData,
root: 5, // entry
selStyle: 'margin-left: 3px;',
select: '#demo9',
defVal: [256, 257] // two
};
var linkageSel9 = new LinkageSel(opts9);
</script>
</pre>
<script>
$(document).ready(function(){
var opts9 = {
data: districtData,
root: 5,
selStyle: 'margin-left: 3px;',
select: '#demo9' ,
defVal: [256, 257]
};
new LinkageSel(opts9);
});
</script>
</div>
<div class="lsdemo">
<h3>Demo10: set multi data entries by pass array</h3>
<div>
Shanxi Province, Taiyuan city: <select id="demo10"></select>
</div>
<pre class="brush: js">
Shanxi Province, Taiyuan city: <select id="demo10"></select>
<script>
var opts10 = {
data: districtData,
root: [5, 256], // array
selStyle: 'margin-left: 3px;',
select: '#demo9',
defVal: 257
};
var linkageSel10 = new LinkageSel(opts10);
</script>
</pre>
<script>
$(document).ready(function(){
var opts10 = {
data: districtData,
root: [5, 256],
selStyle: 'margin-left: 3px;',
select: '#demo10' ,
defVal: 257
};
new LinkageSel(opts10);
});
</script>
</div>
<div class="lsdemo">
<h3>Demo11: fixed width</h3>
<div>
<select id="demo11" ></select>
</div>
<pre class="brush: js">
<select id="demo11"></select>
<script>
var opts11 = {
data: districtData,
selStyle: 'margin-left: 3px;',
select: '#demo11',
fixWidth: 200, // fixed
head: 'Which one?' // tips
};
var linkageSel11 = new LinkageSel(opts11);
</script>
</pre>
<script type="text/javascript">
$(document).ready(function(){
var opts11 = {
data: districtData,
select: '#demo11',
fixWidth: 200,
head: 'Which one?'
};
new LinkageSel(opts11);
});
</script>
</div>
<div class="lsdemo">
<h3>Demo12: no tips</h3>
<div>
<select id="demo12" ></select>
</div>
<pre class="brush: js">
<select id="demo12"></select>
<script>
var opts12 = {
data: districtData,
select: '#demo12',
head: false // no tips
};
var linkageSel12 = new LinkageSel(opts12);
</script>
</pre>
<script>
$(document).ready(function(){
var opts12 = {
data: districtData,
selStyle: 'margin-left: 3px;',
select: '#demo12',
head: false
};
new LinkageSel(opts12);
});
</script>
</div>
<div class="lsdemo">
<h3>Demo13: get all data by ajax one time</h3>
<div>
<select id="demo13" ></select>
</div>
<pre class="brush: js">
<select id="demo13" > </select>
<script>
var opts13 = {
select: '#demo13',
url: 'exampledata.php'
};
var linkageSel13 = new LinkageSel(opts13);
</script>
</pre>
<script>
$(document).ready(function(){
var opts13 = {
selStyle: 'margin-left: 3px;',
select: '#demo13',
url: 'exampledata.php'
};
new LinkageSel(opts13);
});
</script>
</div>
<div class="lsdemo">
<h3>Demo14: 1st level local data, others ajax get</h3>
<div>
<select id="demo14" ></select>
</div>
<pre class="brush: js">
<script src="js/district-level1.js"></script>
<script>
var opts14 = {
data: districtData1, // districtData1 name assign in file district-level1.js
ajax: 'district_crud.php?aj=15',
selStyle: 'margin-left: 3px;',
select: '#demo14'
};
var linkageSel14 = new LinkageSel(opts14);
</script>
</pre>
<script>
$(document).ready(function(){
var opts14 = {
data: districtData1,
ajax: 'district_crud.php?aj=15',
selStyle: 'margin-left: 3px;',
select: '#demo14'
};
new LinkageSel(opts14);
});
</script>
</div>
<div class="lsdemo">
<h3>Demo15: change selected item </h3>
<div>
<select id="demo15" ></select>
<button type="button" onclick="javascript: ls15.changeValues([23, 2244])">changeValues</button>
</div>
<pre class="brush: js">
<body>
<button type="button" onclick="javascript: ls15.changeValues([23, 2244])">changeValues</button>
</body>
<script src="js/district-level1.js"></script>
<script>
var ls15; // must outside of ready() !
$(document).ready(function(){
var opts15 = {
data: districtData1,
ajax: 'district_crud.php?aj=15',
selStyle: 'margin-left: 3px;',
select: '#demo15'
};
window.ls15 = new LinkageSel(opts15);
});
</script>
</pre>
<script>
var ls15;
$(document).ready(function(){
var opts15 = {
data: districtData1,
ajax: 'district_crud.php?aj=15',
selStyle: 'margin-left: 3px;',
select: '#demo15'
};
ls15 = new LinkageSel(opts15);
});
</script>
</div>
<div class="lsdemo">