先看代码:

private SPListWS.Lists _ws;private int _rowLimit = 100;         //Add by spring yang        /// 
        ///        /// 
        ///         public void UpdateQARelateField(List
     
       listResults)        {            List
      
        listResultsPart = null;            if (listResults != null && listResults.Count > 0)            {                for (int i = 0; i < listResults.Count / _rowLimit + 1; i++)                {                    if (i == listResults.Count / _rowLimit)                    {                        listResultsPart =                            listResults.GetRange(i * _rowLimit, listResults.Count - i * _rowLimit);                    }                    else                    {                        listResultsPart = listResults.GetRange(i * _rowLimit, _rowLimit);                    }                    UpdateQARelateFieldLimit(listResultsPart);                                  }            }        }        private void UpdateQARelateFieldLimit(List
       
         listResults)        {            StringBuilder xml = new StringBuilder();            xml.Append("
        
         ");            foreach (SingleResultBE item in listResults)            {                if (!string.IsNullOrEmpty(item.ListItemId.ToString()) && (!string.IsNullOrEmpty(item.QARelate) || !string.IsNullOrEmpty(item.RelateBy)))                {                    xml.Append("
         
          ");                    xml.Append("
          
           " + item.ListItemId + "
          ");                    if (!string.IsNullOrEmpty(item.QARelate))                    {                        xml.AppendFormat("
          
          ", item.QARelate);                    }                    if (!string.IsNullOrEmpty(item.RelateBy))                    {                        xml.AppendFormat("
          
          ", item.RelateBy);                    }                    xml.Append("
         ");                }            }            xml.Append("
        ");            //Get the Batch node            XmlDocument doc = new XmlDocument();            doc.LoadXml(xml.ToString());            XmlNode batchNode = doc.SelectSingleNode("//Batch");            _logger.Log("Started batch update list Items' readonly fields");            XmlNode result = null;            try            {                //Call the webservice                result = _ws.UpdateListItems(Properties.ListName, batchNode);            }            catch (Exception ex)            {                //_logger.Log(String.Format("Error update Items. Exception: {0}. Stack Trace: {1}", ex.Message, ex.StackTrace));            }            UpdateResultBE insertResult = new UpdateResultBE(result, Properties);            if (Properties.IsNeedApprove)            {                this.ApproveItemsByInsertResult(insertResult);            }        }
       
      
     

把数据分成每次100条分次处理就不会报 webservers错误了.