ext4.1 treegrid数据无法显示

liujin9012 2016-03-02 04:31:41



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

        proxy: {

            type: 'ajax',

            url: 'handler/DangerShooting.ashx',

            reader: {

                type: 'json',

                root: 'children',

                totalProperty: "totalCount"

            },

            fields: fields

        }

    });



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

        id: 'treeGrid',

        title: '隐患排查',

        region: 'center',

        height: 500,

        // loadMask: true,

        store: treeStore,

        rootVisible: false,

        tbar: tbar,

        useArrows: false,

        multiSelect: false,

        singleExpand: false,

        selModel: sm,

        columns: [{   //定义tree的列

            xtype: 'treecolumn',

            header: '隐患地点',  //显示的表头列名称

            flex: 2,

            sortable: true,

            dataIndex: 'Hurt_Place'  //对应store的列字段名称

        }, {

            header: '隐患类型',

            align: 'center',

            flex: 1,

            dataIndex: 'Code_Name',

            sortable: true

        }, {

            header: '伤亡人数',

            align: 'center',

            //flex: 1,

            width: 65,

            dataIndex: 'Hurt_People',

            sortable: true

        }, {

            header: '数据来源',

            align: 'center',

            flex: 1,

            dataIndex: 'Source_Type',

            sortable: true

        }, {

            header: '路段类型',

            align: 'center',

            width: 150,

            dataIndex: 'Data_Type',

            sortable: true

        }, {

            header: '录入时间',

            align: 'center',

            flex: 1,

            dataIndex: 'Creation_date',

            sortable: true

        }]

    });

后台返回的json
{totalCount:4,success:true,error:"",children:[{"Creation_date":"2016-02-24 15:30:20","Data_Id":"1","Hurt_People":"0","Code_Id":"1","Code_Name":"设施","Data_Type":"危险路段","Photo_Url":"","Memo":"","Source_Type":"PC","Parent_Id":"0","Hurt_Place":"深南大道1000号","leaf":"true"},{"Creation_date":"2016-02-24 15:30:20","Data_Id":"2","Hurt_People":"0","Code_Id":"1","Code_Name":"设施","Data_Type":"危险路段","Photo_Url":"","Memo":"","Source_Type":"PC","Parent_Id":"0","Hurt_Place":"深南大道1010号","leaf":"true"},{"Creation_date":"2016-02-24 15:30:20","Data_Id":"3","Hurt_People":"0","Code_Id":"1","Code_Name":"设施","Data_Type":"危险路段","Photo_Url":"","Memo":"","Source_Type":"PC","Parent_Id":"0","Hurt_Place":"留仙大道555号","leaf":"true"},{"Creation_date":"2016-02-24 15:30:20","Data_Id":"4","Hurt_People":"0","Code_Id":"1","Code_Name":"设施","Data_Type":"危险路段","Photo_Url":"","Memo":"","Source_Type":"PC","Parent_Id":"0","Hurt_Place":"龙珠大道1111号","leaf":"true"}]}

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