but the thing is that,when i click on "edit button",then all the data,
which is
coming from database, are seen in the textbox's(in edit mode),now if
the user
either made changes in all data or in few data,then all the records
need to updated.
There are two cases i.e
------------------------------------------------------------------------
1)if the record in textbox is changed,then in that case:
***OldValues shud be replaced with NewValues***
-------------------------------------------------------------------------
2)if the record in textbox is not changed,then in that case:
***OldValues shud be replaced with OldValues***
-------------------------------------------------------------------------
I dont think so, that this thing is achieved,as you said that
make there default as null,but by doing so everything will spoil.
