ext3 ajax tree click

ext3 ajax tree click

Ext.onReady(function(){
    // shorthand
    var Tree = Ext.tree;

    var tree = new Tree.TreePanel({
        useArrows: true,
        preloadChildren :true,
        autoScroll: true,
        animate: true,
        containerScroll: true,
        border: false,
        // auto create TreeLoader
        root: {
            nodeType: 'async',
            text: 'Primy 进口',
            draggable: false,
            id: 4
        },
        loader: new Ext.tree.TreeLoader({
            dataUrl:'/home/test_tree_text'
        })
    });

    tree.render('nav-tree');
    tree.getRootNode().expand();
    tree.on('click', function(n, e){
      var sn = this.selModel.selNode || {}; // selNode is null on initial selection
        var el = Ext.getCmp('ct-hd')
        var tb = el.getTopToolbar();

        el.setTitle(n.text);
        tb.addButton({ text: '创建分单', iconCls: 'settings' });
        tb.doLayout();
    });
});