ok marman her's is what i'm working on

i have program abot that send sentences to chat room
i have table with those sentences which appear in datagrid view
now when i want to add new respond or sentence i have to add it to the table first and reload the datagridview so that the new sentence appear in the datagridview and that take some time and very slow because the table have like 31102 rows

so i been thinking about after loading the datagridview from the table for the first time ..i can add the new sentence to the datagridview directly and save it from the datagridview to the table so that i wont have to reload the datagridview each time i add new sentence...

so when i tryie to make button that show me textbox where i can add the new sentence that i want to add it to the datagridview i get error datagridview is bound

i guess you get what i mean now..so tell me how can i do it