update listbox on textbox change asp.net
<p>could any one please help me how to accomplish in asp.net my problem? I have a server control textbox and listbox. What I want to happen is than when I type something on the textbox, on keypress, the contents of the listbox is also updated(realtime) and will filter the result accordingly. If textbox has been cleared, all original values from the listbox will come back. </p>
