用户导入数据库的最佳方式？

I know this isn't a unique issue but I've not had much luck finding examples of how others have addressed this issue. I have an intranet asp.net application I have inherited and am building upon. One particular page is for data entry to submit a claim for approval and we have a form where one record at a time can be entered and it is validated in realtime against the database for valid product information.I know this isn't a unique issue but I've not h