本示例是基于生产订单列表的执行至下达操作，以下代码是列表插件代码。

public override void AfterDoOperation(Core.DynamicForm.PlugIn.Args.AfterDoOperationEventArgs e)
        {
            base.AfterDoOperation(e);
            if (e.OperationResult.IsSuccess && e.Operation.Operation.ToLower() == "torelease")
            {
                string[] billIds = this.ListView.SelectedRowsInfo.GetPrimaryKeyValues();
                List<SelectorItemInfo> selectKey = new List<SelectorItemInfo>();
                selectKey.Add(new SelectorItemInfo("F_dev_Base"));//销售员
                var objs = BusinessDataServiceHelper.Load(Context, this.View.BillBusinessInfo.GetForm().Id, selectKey,
                           OQLFilter.CreateHeadEntityFilter(string.Format(@"FID IN ({0})", string.Join(",", billIds)))).ToList();
                if (objs != null && objs.Count > 0)
                {
                    List<object> list = new List<object>();
                    object[] salerIds = objs.Where(p => p["F_dev_Base"] != null).Select(p => (p["F_dev_Base"] as DynamicObject)["Id"]).ToArray();
                    var userIds = GetUserIdBySaler(salerIds);
                    foreach (var userid in userIds)
                    {
                        //根据userid构建json
                        string json = "{\"Model\":[{\"FTitle\":\"我是标题\",\"FContent\":\"我是内容,单据id=1\",\"FReceivers\":\"123\",\"FType\":\"1\",\"FObjectTypeId\":\"AM_VOUCHER\",\"FKeyValue\":\"100012\"}]}";
                        WebApiServiceCall.SendMsg(this.View.Context, json);
                    }
                }
            }
            
            /// <summary>
        /// 通过销售员获取用户ID
        /// </summary>
        /// <param name="salerIds"></param>
        /// <returns></returns>
        private long[] GetUserIdBySaler(object[]salerIds)
        {
            //参考一下sql查询
            //select t5.FUSERID 
            //from V_BD_SALESMAN t1 inner join T_BD_STAFF t2 on t1.FSTAFFID=t2.FSTAFFID
            //inner join T_BD_STAFFPOSTINFO t3 on t2.FSTAFFID=t3.FSTAFFID
            //inner join T_BD_PERSON t4 on t2.FPERSONID=t4.FPERSONID
            //inner join T_SEC_USER t5 on t4.FPERSONID=t5.FLINKOBJECT
            //where t1.fid=136513
            return new long[] { 123 };
        }