Datagrid question

[Aaron]

I have a query like this

select id, product_name, order_id, date, price from product where
product_name like @searchItem

it stores the results into a dataset

since there are more than one result

how can i highlight the row that is an exact match to the search word
while still displaying the other rows and convert the data of this row
into a string.

i hope this makes sense...

thanks