How to Use combobox to change the values in a textbox through a database

[mercury113]

hello .. im having this thesis project and im new in vb.net i am having a problem in using the combobox and textbox that is connected through a database.. (im using microsoft access)

i want that when i choose in the combobox .. the textbox will automatically update itself that is connected through the data in combobox ..

for example ..

Lesson Number and Lesson Content ..

when i change the lesson number .. the content will change that is related to the lesson number ..

any help will do .. thanks in advance ..