datagrid 显示隐藏 工具栏按钮

function loadData(pars, url) {
$('#data').datagrid({
url: url,

........

........

, onLoadSuccess: function (data) {
                     
                    if (comBoxName1 == "1" || comBoxName1=="2") {
                        $('#btnID').hide();
                    }
                    else {
                        $('#btnID').show();
                    }
                  
                    
                }

 , toolbar: [

                    
       
                      
                     { text: '新增', id: 'btnID', name: 'add', iconCls: 'icon-add btn_menu', handler: function () { showAdd('@BaseRes.SPD_COL_013', comBoxName1); } }, '-',
                  
                    {
                        text: '修改', id: 'edt', name: 'edt', iconCls: 'icon-edit', handler: function () {
                            var selectRows = $('#data').datagrid('getSelected');
                            if (!selectRows) {
                                $.messager.alert('@BaseRes.COM_CTL_NOTICE', "@BaseRes.MGC_CTL_031");
                                return;

                            }
                            Edit(selectRows.ID, "修改", true);

                        }

                    }, '-',                     
                    { text: '删除', iconCls: 'icon-remove', handler: function () { DeletCombox(); } }

                ]
            });
        }