【MVVM】 关于 MarkErrorAsHandled 和SetTotalItemCount

public void OnLoadstatistical(LoadOperation<Statistical> op)
        {
            if (op.HasError)
            { 
                op.MarkErrorAsHandled();   //调试错误异常，不执行操作!
            }
            else if(!op.IsCanceled)
            {
                this._sourcestatistical.Source = op.Entities;
                if (op.TotalEntityCount != -1)    //没用找到匹配资源
                {
                    this._viewStatistical_Quarter.SetTotalItemCount(op.TotalEntityCount);     //Page分页 用到的语句。
                }
            }