Tree 二次从新加载调用方法

function treeReLoaded(tree, url) {

    var TreeLoader = tree.getLoader();  //得到Ext.tree.TreeLoader

    TreeLoader.dataUrl = url;                    //更新数据源

    var treeroot = tree.getRootNode();    //得到根节点               

    treeroot.reload();                                 //重新加载根节点

    treeroot.expand(true, false);              //展开树 

}

 

function showBudget(success, ids,_store) {
    /// <summary>选择预算对话框</summary>
    /// <param name="success" type="Function">
    /// 成功的回掉函数 格式:function(records)
    /// record:WOO_DEPARTMENT.ToJSON
    /// </param>
    /// <param name="ids" type="Array||String">已经选中的id</param>

    if (ids != null && Ext.isArray(ids)) {
        ids = ids.join();
    }

    var url = woo.constant.baseUrl + '/AjaxPage/OtherRequest/Budget.aspx?cmd=GetTree' +
        '&CheckedIDs=' + ids +
        '&r=' + woo.util.getRandom();

    var _treeloader = new Ext.tree.TreeLoader({
        dataUrl: url,
        baseAttrs: {
            uiProvider: Ext.tree.TreeCheckNodeUI
        }
    });
    var _root = new Ext.tree.AsyncTreeNode({
        id: "root21",
        text: "选择预算",
        expanded: true
    });

    var _tree = new Ext.tree.TreePanel({
        lines: true,
        containerScroll: true,
        autoScroll: true,
        checkModel: 'cascade',
        onlyLeafCheckable: false,
        loader: _treeloader,
        root: _root
    });
    var today = new Date();
    var year = today.getFullYear();
  
    var _form = new Ext.form.FormPanel({
        layout: 'form',
        labelAlign: 'top',
        // layout: 'fit',
        bodyStyle: 'padding:20px',
        width: 500,
        labelAlign: "right",
        autoScroll: true,
        items:
            [
            {
                xtype: "combo",
                fieldLabel:"年份",
            
                hiddenName: 'ContractFinanceType',
                value: year,
                //style: 'background: url(Resources/images/pen.gif) no-repeat 3px;padding-left:15px;',
                store: new Ext.data.SimpleStore({
                    fields: ['value', 'text'],
                    data: [[year - 1, year - 1], [year, year], [year + 1, year + 1]]
                }),
             
                width: 200,//120
                valueField: 'value',
                displayField: 'text',
                lazyRender: true,
                editable: false,
                typeAhead: true,
                triggerAction: 'all',
                mode: 'local',
                selectOnFocus: true,
                allowBlank: false,
                listClass: 'x-combo-list-small',
                listeners: {
                    'select': function (box, record, index) {
                        var url2=url + "&year=" + record.get("value");
                        treeReLoaded(_tree, url2);
             //try{
             //    alert(_tree.loader);
             //    alert(_tree.loader.dataUrl);
             //    _tree.loader.dataUrl = url + "&year=" + record.get("value");

             //   //修改URL,注意，前面不要加'/'
             //    alert(_tree.loader.dataUrl);
             //  //  alert(_tree.loader.pagingModel);

             //    //将加载模式修改为远程
             //    _tree.loader.pagingModel = 'remote';
             //   // alert(_tree.loader.pagingModel);
             //}catch(e){
             //   alert(e.name + ": " + e.message);
             //}
             //_tree.root = _root;
             //_tree.loader.load();//重新加载
             //_tree.loader.pagingModel = 'local';

                    }
                }
            },
            _tree
           ],
        buttons: [{
            text: WooI18N.ModuleSystem.Setting.Workflow.Build.Shore,
            handler: function () {
                if (success) {
                  
                    var records = [];
                    var b = _tree.getChecked();
                    for (var i = 0; i < b.length; i++) {
                        records.push(b[i].id);
                    }
                    success(records);
                  
                }
                _win.close();
            }
        }, {
            text: WooI18N.ModuleSystem.Setting.Workflow.Build.Cancel,
            handler: function () {
                _win.close();
            }
        }]
    });
    var _win = new Ext.Window({
        title: "选择预算",
        modal: true,
        layout: 'fit',
        width: 500,
        height: 500,
        closeAction: 'destroy',
        autoScroll: true,
        plain: true,
        resizable: false,
        constrainHeader: true,
        items: _form
    });
    _win.show();
}