ExtJs 4.2 treePanel 点击树节点 传送参数到后台（多个参数）

//***********************************************左边树开始***********************************************

//分组树Store

var treeStore = Ext.create('Ext.data.TreeStore', {

    proxy: {

        type: 'ajax',

        url: "/Handler/StorePositionLayoutHandler.ashx?func=getbystorestorepositionlist&format=list"

    },

    autoLoad: false,

    fields: ['text', 'id', 'leaf', 'SPLId', 'SPLName', 'StoreId', 'Level1', 'Level2', 'Level3', 'levelType'],

    reader: {

        type: "json",

        root: ''

    },

    extraParams: {

        SPLId: '',

        StoreId: '',

        Level1: '',

        Level2: '',

        Level3: '',

        levelType: '',

    }

});

//分组树

var treePanel = Ext.create('Ext.tree.Panel', {

    store: treeStore,

    border: false,  //边框

    enableDD: true,

    rootVisible: false,  //隐藏根节点

    useArrows: true, //树节点使用箭头

    containerScroll: true,

    collapsible: false,

    autoScroll: false,

    title: '货位信息列表',

    columns: [{

        xtype: 'treecolumn',

        text: '货位层次',

        dataIndex: 'text',

        width: 150,

        sortable: true

    }, {

        text: '货位名称',

        dataIndex: 'SPLName',

        flex: 1,

        sortable: true

    }],

    //点击目录树+前 给root参数赋值  

    listeners: {

        //树列表单击，取值赋值给id:xxxx的文本框  

        itemclick: function (node, record, item, index, event, eOpts) {

            //给右侧页面赋值 开始

            var id = record.data.id;

            var text = record.data.text;

            var SPLId = record.data.SPLId;

            var SPLName = record.data.SPLName;

            var StoreId = record.data.StoreId;



            BelowForm.setTitle('当前货位：' + text + '' + SPLName);



            BelowForm.form.findField('SPLId').setValue(SPLId);

            BelowForm.form.findField('SPLName').setValue(SPLName);

            //给右侧页面赋值 结束  

        },

        //点击目录树+前 给root参数赋值  

        beforeitemexpand: function (record, eOpts) {

            if (treePanel != undefined) {

                var root = treePanel.store.getProxy();

                root.extraParams.SPLId = record.data.SPLId;

                root.extraParams.StoreId = record.data.StoreId;

                root.extraParams.Level1 = record.data.Level1;

                root.extraParams.Level2 = record.data.Level2;

                root.extraParams.Level3 = record.data.Level3;

                root.extraParams.levelType = record.data.levelType;

            }

        }

    }

    //singleExpand:true   //展示单个子节点，其它的子节点合并。

});

//treePanel.expandAll(); //展开所有节点

treePanel.collapseAll(); //关闭所有节点



//***********************************************左边树结束***********************************************