Extjs 中的grids 一個可編輯的欄位 點擊時 顯示異常

Question

欄位定義：
     dtlGridM2 = new Ext.grid.EditorGridPanel({
store: dtlStoreM2,
columns: [new Ext.grid.RowNumberer({header: "序號",width: 40}),
id:'fd_budgetdepartname',header: "預算來源單位",  sortable: true, dataIndex: 'fd_budgetdepartname'},
{id:'fd_budgetary2',header: "預算科目",  sortable: true, dataIndex: 'fd_budgetary2',editor: fd_budgetnoCombobox},
{id:'fd_budgetController2',header: "預算控管科目",  sortable: true, dataIndex: 'fd_budgetController2',editor:fd_budgetnos2Combobox},
點擊時的異常：
     <DIV class="x-grid3-cell-inner x-grid3-col-fd_oftenobject2" id=ext-gen1157 unselectable="on">&nbsp;</DIV>