Auto fill texbox

hay all,

i have project making database for selling item in mart using Barcode. I am scan the barcode then output will shown in textbox1, then textbox2 will showing the item name, and textbox3 for item price.
My question is, how to fill another textbox(textbox 2, 3 and 4) automaticaly?

Flowchart :

1.textbox1 for barcode scanner output (item code)

2. then textbox2 showing the name of the item.

3. then textbox3 showing price of the item.

am try using this command and not working T_T

if textbox1.text = "12345" then textbox2.text = " Owen " else textbox3.text = "1000"
end if




thanks you for help me friends ^^

Attached Images