visual basic vb.net local windows , for beggener not the one that has all the complicated codes ""

i have a list box and data grid view , tthe list box has names , when the user choose a name the grid view display all the payment that made by this name

i have 2 tables database

1- first name , last name ,id ,phone ,joind date

2- payment id, payment date ,amount

iits based ,on the karate assignment

((1- how to connect the list with the grid , it should have something called selected value and paramatized quirey @parameter

depend on the common id number between the 2 tables

2 - how to display both the first and last name in the list box like washington,tom i. i only know how to display one colomn not tow

3 - how to display the information in the grid view by typing an ID in a text box (also using quiries )

thank you