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cascade.html
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<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>犸特头</title>
<!-- extjs -->
<link rel="stylesheet" type="text/css" href="../ext-4.2.1.883/resources/css/ext-all-neptune.css">
<!--<script type="text/javascript" src="../extjs/ext-all.js"></script>-->
<script type="text/javascript" src="../ext-4.2.1.883/ext-all-debug-w-comments.js"></script>
<script type="text/javascript" src="../ext-4.2.1.883/locale/ext-lang-zh_CN.js"></script>
<style type="text/css" >
body{padding-left:5px;}
</style>
</head>
<body>
<script type="text/javascript">
Ext.define("Ext.ux.linkcombo" , {
extend: "Ext.form.FieldContainer" ,
alias : 'widget.linkcombo',
layout: "hbox" ,
fieldLabel:"选择地区" ,
labelWidth: 60 ,
config:{
combos:[
{name:"sheng" , emptyText:"请选择省"} ,
{name:"shi" , emptyText:"请选择市"} ,
{name:"xian" , emptyText:"请选择县" , margin:0}
] ,
fields: [
"id" , "name"
] ,
displayField: "name" ,
valueField: "id" ,
filterProperty: {parentField:"parent_id" , firstValue:0}
} ,
constructor: function (config) {
this.initConfig(config);
this.callParent([config]);
},
initComponent: function(){
var me = this;
me.items = this.createItems();
me.defaults = Ext.apply(this.defaults , {
displayField: me.getDisplayField() ,
valueField: me.getValueField()
});
me.callParent();
me.on("render" , me.loadData , me);
} ,
createItems: function(){
var items = [] ,
combos = this.getCombos() ,
storeFields = this.getFields();
Ext.each(combos , function(combo){
var item = Ext.apply({
xtype:"combobox" ,
store: Ext.create("Ext.data.JsonStore" , {
fields: storeFields ,
proxy: {
type:"memory"
}
}) ,
disabled: true ,
editable: false,
queryMode: 'local',
triggerAction: 'all' ,
listeners:{
change: this.onComboChange ,
scope: this
}
} , combo);
items.push(item);
} , this);
return items;
} ,
loadData: function(){
var data = this.data = [
{name:"河北" , id:1 , parent_id:0} ,
{name:"石家庄" , id:11 , parent_id:1} ,
{name:"正定" , id:111 , parent_id:11} ,
{name:"常山" , id:112 , parent_id:11} ,
{name:"唐山" , id:12 , parent_id:1} ,
{name:"唐海" , id:121 , parent_id:12} ,
{name:"滦南" , id:122 , parent_id:12} ,
{name:"河南" , id:2 , parent_id:0} ,
{name:"郑州" , id:21 , parent_id:2} ,
{name:"金水区" , id:211 , parent_id:21} ,
{name:"二七区" , id:212 , parent_id:21} ,
{name:"洛阳" , id:22 , parent_id:2} ,
{name:"偃师县" , id:221 , parent_id:22} ,
{name:"宜阳县" , id:222 , parent_id:22}
];
this.setComboData();
} ,
setComboData: function(combo , filterValue){
var comboBoxs = this.getNextComboBoxs(combo);
if (comboBoxs.length == 0) return;
Ext.each(comboBoxs , function(n){
n.store.removeAll();
n.clearValue();
n.disable();
});
var comboBox = comboBoxs[0];
var fp = this.getFilterProperty();
var comboData = Ext.Array.filter(this.data , function(n , i){
return n[fp.parentField] == (filterValue || fp.firstValue);
} , this);
comboBox.store.loadData(comboData);
comboBox.enable();
} ,
getNextComboBoxs: function(combo){
var comboBoxs = [];
var items = this.items.items;
var ix = Ext.Array.indexOf(items , combo)+1;
if (ix == items.length) return comboBoxs;
comboBoxs = Ext.Array.slice(items , ix);
return comboBoxs;
} ,
onComboChange: function(cb , newvalue , oldvalue){
this.setComboData(cb , newvalue);
} ,
getValue: function(){
var items = this.items.items;
var values = {};
Ext.each(items , function(n){
if (n.name) values[n.name] = n.getValue();
});
return values;
}
});
Ext.onReady(function(){
var linkcombo;
var panel = Ext.create("Ext.panel.Panel" , {
margin:10 ,
title: "省市县级联" ,
layout:"fit" ,
dockedItems:[
{xtype:"toolbar" , items:[
linkcombo = Ext.create("Ext.ux.linkcombo" , {
defaults:{width:100 , margin:"0 5 0 0"}
}) ,
{text:"获取值" , handler:function(){
panel.update("<b style=\"color:red\">value:"+Ext.encode(linkcombo.getValue())+'</b>');
}}
]}
] ,
bodyPadding: 10 ,
html:"<b style=\"color:red\">显示数据</b>" ,
renderTo:document.body
});
})
</script>
<a href="http://blog.mttqq.com" target="_blank"><h3>犸特头-Extjs4更多学习</h3></a> <b>本插件由群友"天津-让你笑了"提供</b>
<a target="_blank" href="http://wp.qq.com/wpa/qunwpa?idkey=f50865b2598688abcae47cca8ae48b5c1ea26a45194c640071eefdd7212d3a2e"><img border="0" src="http://pub.idqqimg.com/wpa/images/group.png" alt="extjs 技术交流" title="extjs 技术交流"></a>
</body>
</html>