无法将数据加载到extjs4的treepanel中

| 我是extjs的新手,正在创建MVC应用程序。 我正在尝试如下创建树面板。 以下是我的模型文件
Ext.define(\'rt.model.userinproject\', {
extend: \'Ext.data.Model\',

proxy: {
    type: \'memory\'
},


fields: [
    { name: \'text\', type: \'string\'},
    { name: \'id\',  type: \'Number\'}

]
});
以下是我的商店文件
Ext.define(\'rt.store.userinproject\', {
extend: \'Ext.data.TreeStore\',

model: \'rt.model.userinproject\',

root: {
        text: \'Project 1\',
        id: 1,
        expanded: true
    },

folderSort: true,

sorters: [{
        property: \'text\',
        direction: \'ASC\'
    }],

data: [
        {
            text: \"Project 1\",
            id: 1, 
            expanded: true,
            children: [
                        {
                            text: \"Department 1\",
                            id: 1,
                            cls: \"folder\",
                            children:[
                                        {
                                            text: \"User 1\",
                                            id: 1,
                                            leaf:true
                                        },
                                        {
                                            text: \"User 2\",
                                            id: 2,
                                            leaf:true
                                        },
                                        {
                                            text: \"User 3\",
                                            id: 3,
                                            leaf:true
                                        },
                                        {
                                            text: \"User 4\",
                                            id: 4,
                                            leaf:true
                                        },
                                        {
                                            text: \"User 5\",
                                            id: 5,
                                            leaf:true
                                        }
                                    ]

                        },
                        {
                            text: \"Department 2\",
                            id: 2,
                            cls: \"folder\",
                            children:[
                                        {
                                            text: \"User 6\",
                                            id: 6,
                                            leaf:true
                                        },
                                        {
                                            text: \"User 7\",
                                            id: 7,
                                            leaf:true
                                        },
                                        {
                                            text: \"User 8\",
                                            id: 8,
                                            leaf:true
                                        },
                                        {
                                            text: \"User 9\",
                                            id: 9,
                                            leaf:true
                                        },
                                        {
                                            text: \"User 10\",
                                            id: 10,
                                            leaf:true
                                        }
                                    ]


                        },
                        {
                            text: \"Department 3\",
                            id: 2,
                            cls:\"folder\",
                            children:[
                                        {
                                            text: \"User 11\",
                                            id: 11,
                                            leaf:true
                                        },
                                        {
                                            text: \"User 12\",
                                            id: 12,
                                            leaf:true
                                        },
                                        {
                                            text: \"User 13\",
                                            id: 13,
                                            leaf:true
                                        },
                                        {
                                            text: \"User 14\",
                                            id: 14,
                                            leaf:true
                                        },
                                        {
                                            text: \"User 15\",
                                            id: 15,
                                            leaf:true
                                        }
                                    ]
                        }

                    ]
        },
        {
            text: \"Project 2\",
            id: 1, 
            expanded: true,
            children: [
                        {
                            text: \"Department 1\",
                            id: 1,
                            cls: \"folder\",
                            children:[
                                        {
                                            text: \"User 1\",
                                            id: 1,
                                            leaf:true
                                        },
                                        {
                                            text: \"User 2\",
                                            id: 2,
                                            leaf:true
                                        },
                                        {
                                            text: \"User 3\",
                                            id: 3,
                                            leaf:true
                                        },
                                        {
                                            text: \"User 4\",
                                            id: 4,
                                            leaf:true
                                        },
                                        {
                                            text: \"User 5\",
                                            id: 5,
                                            leaf:true
                                        }
                                    ]

                        },
                        {
                            text: \"Department 2\",
                            id: 2,
                            cls: \"folder\",
                            children:[
                                        {
                                            text: \"User 16\",
                                            id: 16,
                                            leaf:true
                                        },
                                        {
                                            text: \"User 17\",
                                            id: 17,
                                            leaf:true
                                        },
                                        {
                                            text: \"User 18\",
                                            id: 18,
                                            leaf:true
                                        },
                                        {
                                            text: \"User 19\",
                                            id: 19,
                                            leaf:true
                                        },
                                        {
                                            text: \"User 20\",
                                            id: 20,
                                            leaf:true
                                        }
                                    ]


                        },
                        {
                            text: \"Department 3\",
                            id: 2,
                            cls:\"folder\",
                            children:[
                                        {
                                            text: \"User 21\",
                                            id: 21,
                                            leaf:true
                                        },
                                        {
                                            text: \"User 22\",
                                            id: 22,
                                            leaf:true
                                        },
                                        {
                                            text: \"User 23\",
                                            id: 23,
                                            leaf:true
                                        },
                                        {
                                            text: \"User 24\",
                                            id: 24,
                                            leaf:true
                                        },
                                        {
                                            text: \"User 25\",
                                            id: 25,
                                            leaf:true
                                        }
                                    ]
                        }

                    ]
        }
    ]
});
以下是我的查看文件
Ext.define(\'rt.view.project.projectuser\', {
extend: \'Ext.tree.Panel\',
alias: \'widget.projectuser\',

disabled: true,
border: false,
cls: \'projectuser\',
autoScroll: true,

initComponent: function() {
    Ext.apply(this, {
        store: this.store,

        items: {
        title: \'User in project\',
        }
    });

    this.callParent(arguments);
},


});
当我运行代码时,树面板似乎没有树就空了。 我想做的是,我想根据上面商店中的项目ID显示树 如果您需要我提供任何其他信息,请告诉我。 谁能帮助我解决这个问题。 提前致谢。     
已邀请:
        我可以通过替换视图文件中的以下行来解决上述问题
store: this.store,
如下
store: Ext.data.StoreManager.lookup(\'userinproject\'),
希望这会帮助某人。 谢谢。     

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