Doubt in retrive value from database to form in c#

Question

Hi,

   Please I need one help.. I am doing one gift giving project. In that   I already insert one table like, 

   Field name:  amount        Gift

                            10000     Bag

                             20000    Mobile

                             30000    Watch

 

       Now I want to get if my amount in textbox is 25000 mobile gift is fetch to another textbox and also want to check  if my amount in in between 10000 to 19999  gift is bag and same for all....

 Please Help me very urgent.....

 Thanks in advance to all