请问ComboBoxCheckTree怎么reload?

Question

ComboBoxCheckTree.getRootNode().reload(); 
ComboBoxCheckTree.getRootNode().load(); 
ComboBoxCheckTree.getRootNode().expand();都试过了  还是不行 都显示 "对象不支持该属性" 

Answer 1

  ComBoxCheckTree,同样有数据源吧？？store.reload()不行么？

Answer 2

是用的TreeLoader
var  infoTreeLoader=new Ext.tree.TreeLoader({dataUrl:'test.do?action=get_sccj_tree'});
var infoTreeRoot=new Ext.tree.AsyncTreeNode({id:'-1',text:'生产厂家'})
var sccjComboBoxTree = new Ext.ux.ComboBoxTree({
id: 'parent_sccj_h1',  
hiddenName:'parent_sccj_h', 
fieldLabel:'上级生产厂家单位',
blankText:'请选择生产厂家单位',
listWidth:200,
allowBlank:true,
anchor:'90%',
tree : {
xtype:'treepanel',
loader:infoTreeLoader,
root : infoTreeRoot
},
selectNodeModel:'exceptRoot'  });

Answer 3

上面写错了
是这个ComboBoxCheckTree
var treeRoot=new Ext.tree.AsyncTreeNode({id:'-1',text:'全部'});
var treeLoader = new Ext.tree.TreeLoader({dataUrl:'wl.do?action=get_sgdw_tree',   
baseAttrs: { uiProvider: Ext.ux.TreeCheckNodeUI } });
 sgdwComboBoxCheckTree= new Ext.ux.ComboBoxCheckTree({
renderTo : 'sgdwComboBoxCheckTree',
hiddenName: 'sgdw_h',  
id: 'sgdw_h1', 
listWidth:300,
tree : {
xtype:'treepanel',
checkModel: 'cascade',   //cascade selection
onlyLeafCheckable: false,//all nodes with checkboxes
animate: true,
rootVisible: true,
autoScroll:true,
loader:treeLoader,
root :treeRoot
},
selectValueModel:'all'
});