private void QueryResultGrid_RMA_LoadingDataSource(object sender, Newegg.Oversea.Silverlight.Controls.Data.LoadingDataEventArgs e)
 {
     queryRMAFilter.PageInfo = new ECCentral.QueryFilter.Common.PagingInfo()
     {
         PageSize  = QueryResultGrid_RMA.PageSize,
         PageIndex = QueryResultGrid_RMA.PageIndex,
         SortBy    = e.SortField
     };
     //TODO:根据权限,获取PMList:
     serviceFacade.QueryPurchaseOrdersRMAList(queryRMAFilter, (obj, args) =>
     {
         if (args.FaultsHandle())
         {
             return;
         }
         QueryResultGrid_RMA.TotalCount  = args.Result.TotalCount;
         QueryResultGrid_RMA.ItemsSource = args.Result.Rows;
     });
 }