How to show up the records in the listbox through textfield ??

take a look at the eddie electronic exemple

Where can i find it ?

In Xojo select New Project from the file menu - Click on Examples in the sidebar of the “Choose a Project” window - Open Sample Applications in the list and you will see Eddies Electronics.

Of if the number of fields in a Record (of your database) will never change, you can create a new window,
Add as TextField(s) as needed (rs.FieldCount)
Then - for example - a double click open the Record (as Card) window and display the selected Row data into each TextField.