how to store in a database Access but using a datagridview?

I am new to C#, so I am developing an application using a datagridview, I am supposed to retrieve data from the database(Access) and put in in the first column of the datagridview?, and store the data of the other columns in the database (the user puts in the other 2 columns)? I dont know how to use the datagridview ? Its very important, I have used alot of code I have found on internet, but it doesnt work, I used a acces database accdb

Help, tips, code, is very appreciated is a VERY important project

Bye