Excel 2007 sorting ribbon is not working with .Net save code
 

I build a visual studio C# for office 2007 excel workbook project. It is for
displaying and updating data which come from a database table. Everything
works fine except €“ after using Ribbon button to sort the data in the excel
column; the data save(update) is not working or the data value has been saved
to another record in the table, and it is only happening at the first time
after the sorting. The same function work fine if the data is sorted through
the column header. It seems is a bug in the excel, Please help.