(期待整理)
Row cannot be located for updating的解决方法:

  //---- ADCPROP_UPDATECRITERIA_ENUM Values ----
  //Const adCriteriaKey = 0
  //Const adCriteriaAllCols = 1
  //Const adCriteriaUpdCols = 2
  //Const adCriteriaTimeStamp = 3
  adsPlanGoods.Properties['Update Criteria'].value := 0 ;

参考：

http://support.microsoft.com/default.aspx?scid=kb;EN-GB;q190727&GSSNB=1
How To Control Your Updates in ADO Through "Update Criteria"

http://support.microsoft.com/?scid=kb;zh-cn;300586&spid=2971&sid=global
BUG：如果更改 ADODC 记录集中的数值字段，将出现错误"无法找到要更新的行"

http://blog.csdn.net/dogbear2000/archive/2005/02/03/279600.aspx
转贴：Row cannot be located for updating的解决方法