private string delete()
        {
            string sReturnJson = string.Empty;
            string Ids = ParamsofEasyUI.RequstString("id");
            //string sqlexe = string.Format("delete from product where id in ({0})", id);
            //string a = "a";
            if (AllService.DeleteFood(Ids))
                //if (mdb.db.ExecuteUpdate(sqlexe))
                sReturnJson = "{success:true}";
            else
                sReturnJson = "{success:false,msg:'删除失败'}";
            return sReturnJson;
        }

        function del() {
            var arr = getSelectedArr();
            if (arr.length > 0) {

                //$.messager.confirm('提示信息', '您确认要删除吗?', function(data) {
                    //alert(data);
                    //if (data) {
                        $.ajax({
                            //url: 'Handler.ashx?action=del&id=' + arr2str(arr),

                            url: '<%= Url.Content("~/Controllers/JsonBreakfast.ashx?action=del&id=")%>' + arr2str(arr),
                            type: 'GET',
                            timeout: 1000,
                            error: function() {
                                $.messager.alert('错误', '删除失败!', 'error');
                            },

                            success: function(data) {
                                eval('data=' + data);
                                if (data.success) {
                                    //grid.datagrid('acceptChanges');
                                    grid.datagrid('reload');
                                    //grid.datagrid('refreshRow');
                                    grid.datagrid('clearSelections');
                                } else {
                                    $.messager.alert('错误', data.msg, 'error');
                                }
                            }
                        });

                        //grid.datagrid('deleteRow', index);

                    //}
                //});
            }
            else {
                $.messager.show({
                    title: '警告',
                    msg: '请先选择要删除的记录。'
                });
            }
        }