Adding records into a SQL Server database

I have a SQL Server Database in which there is a table. I need to be able to add records to this database by taking the strings from Textboxes and creating a record with them.

I am able to read frm the database using the SQLDataReader.

I beleive SQLDataAdapter is what is required but what SQL command is needed to insert it correctly to the database? Many thanks for any help guys:)

Why don't you use LINQ to SQL?