jquery trigger event

问题:

How can we call the trigger click event on a live object.

$("#continue").live("keypress",function(){
 if (e.which == 32 || e.which == 13) {
    $(this).trigger("click");
  }
});

when i press enter on the button it is coming into if block but it is not triggering the button. can u please help me in this. Thanks in advance.

回答1:

You use the argument "e", but never actually pass it in as an argument.

$("#continue").live("keypress",function(){

needs to be:

$("#continue").live("keypress",function(e){

回答2:

Try this:

$("#continue").live("keyup",function(e){
 if (e.keyCode == 32 || e.keyCode == 13) {
    $(this).trigger("click");
  }
});

I covered this in this post a bit: EnterKey is not working sometimes in IE8, using jQuery's keyPressed

But basically there are "Special Keys" that won't fire on keypress and you have to use keydown or keyup.

Example here: http://jsfiddle.net/uS4XK/1/

Though I have to be honest this is a strange behavior to want. You want a click event on #continue when they press enter in it?

回答3:

You need to check if the $(this) really matches your button.

Try replacing :

$(this).trigger('click')

With

$('#continue').trigger('click')