modifield field

Hello ,

i written a code in Modified method of “String” field for update a record ,but when ever i enter the data that data is effected to different record in table…i.e

ex…i am update data of record “0099”,(field)

it will effect in for different record -“00199”

please suggest me what is the problem…

Does the string field is a bounded control( If not use an edit method instead(