transfer data bewteen forms

Question

hi, i try to write a little DB application, i have my main form with some textfields which are used to view the properties of a dataset, and also can be used to search the DB. as fas as good, im able to send the query string to an other form that only consits of a datagrid, but i can't figure out how to send a selected row of the grid back to my main form. any ideas? thx for your help