HI ALL,
I want do a search function something like i keyin in textbox then the selectbox will auto change the value without refresh the page depend on what i keyin in textbox.
Actually it was using PHP + java script for coding, b'cos after onkeypress, it will go to Database to select the record and return the record to select box.
most dropdowns already possess some key handling, typically they will jump to the first letter you press already. Down and up also typically change the selected item down and up from the current selection.