This article is mainly on the jquery to obtain KeyCode sample code is introduced, the need for friends can come to the reference, I hope to help you.
As follows: The code is as follows: Txtsearch: text box ID $ ("#txtSearch"). KeyUp (function (event) { var keycode = event.whic H if (keycode = { alert (' You have pressed enter '); } }); or Xobj.keyup (function (event) { //get the key value of the current key // jquery's Event object has a which property that can get key values for keyboard keys var keycode = event.which; // Handling carriage return if (keycode==13) { } //handling ESC Situation & nbsp if (keycode =) { } or $ (document). KeyUp (function (event) { //get key value of current key // jquery's Event object has a which property that can get key values for keyboard keys var keycode = event.which; // Handling of carriage returns  if (keycode==13) { } //handling ESC condition  IF ( KeyCode =) { } };