combobox级联
//父combobox
var comboxp = new Ext.form.ComboBox({
store: pStore,
displayField:'label',
valueField: 'label',
typeAhead: true,
mode: 'local',
forceSelection: true,
triggerAction: 'all',
lazyRender:true,
emptyText:'父',
selectOnFocus:true,
listeners : {
beforequery : function() {
pStore.removeAll();
DWREngine.setAsync(false);
var lt=null;
//获取数据：dwr方法获取
Action.getPBox(function(data){
lt= data;
});
if(lt!= null) {
var records = new Array();
for(var i = 0 ; i < lt.length; i++) {
var ss = lt[i];
var record = new Ext.data.Record({
value : ss.key,
label : ss.value
});
records.push(record);
}
pStore.add(records);
}
DWREngine.setAsync(true);
},
select : function(combo, record, index) {
DWREngine.setAsync(false);
var codeId = combo.getValue();
var lt=null;
//修改子combobox的值
Action.getCBox(codeId,function(data){
lt= data;
});
comboxc.clearValue();
comboxc.getStore().removeAll();
if(lt!= null) {
var records = new Array();
for(var i = 0 ; i < lt.length; i++) {
var ss = lt[i];
var record = new Ext.data.Record({
value : ss.key,
label : ss.value
});
records.push(record);
}
comboxc.getStore().add(records);
}
DWREngine.setAsync(true);
}}
});
//子combobox
var comboxc = new Ext.form.ComboBox({
store: cStore,
displayField:'label',
valueField: 'label',
typeAhead: true,
mode: 'local',
forceSelection: true,
triggerAction: 'all',
lazyRender:true,
emptyText:'子',
selectOnFocus:true
});