Ext 4.2以后版本 ComboBox 联动

        //combox树

        ComboTree: function (upDep, empStore) {

            var com = Ext.create('Ext.ux.desktop.ComboTree', {

                margin: '0 0 5 5',

                labelWidth: 60,

                //rootText: 'text',

                emptyText: '请选择部门...',

                flex: 3,

                rootId: 'id',

                expanded: true,

                storeUrl: '/data/personMatter/orgHandler.ashx?Action=tree',

                editable: false,

                name: 'depname',

                value: upDep,

                id: 'CommonUp_Add_From',

                selectMode: 'all',

                treeHeight: 300,

                listeners: {

                    select: function (Combox, record, index) {//联动效果

                        var city = Ext.getCmp('emplerId');

                        city.clearValue();

                        city.store.removeAll();

                        depId = record.data.id;

                        empStore.load({

                            params: {

                                action: 'empInDep', depId: record.data.id

                            }

                        });

                    }

                }

            });

            return com;

        },

form:

            var empStore= Ext.create('Ext.data.Store', {

                fields: ['id', 'name'],

                proxy: {

                    type: 'ajax',

                    url: '/data/CommonHandlers/ComboBoxHandler.ashx',

                    reader: {

                        type: 'json',

                        root: 'items'

                    }

                }

            });

 

{

                            fieldLabel: '业务员',

                            labelWidth: 60,

                            margin: '0 0 5 20',

                            xtype: 'fieldcontainer',

                            combineErrors: true,

                            defaultType: 'textfield',

                            defaults: {

                                hideLabel: 'true'

                            },

                            layout: 'hbox',

                            flex: 1,

                            items: [CusManage.CustomerList.ComboTree('', empStore),

                            {

                                emptyText: '请选择员工...',

                                flex: 2,

                                selectOnFocus: true,

                                xtype: 'combobox',

                                name: 'empler',

                                margins: '0 0 0 6',

                                valueField: 'id',

                                store:empStore,

                                displayField: 'name',

                                queryMode: 'local',  //4.2以前版本为model,一定看清,否自抓狂

                                id:'emplerId'

                            }]

                        }