jquery - 动态生成文本框的按键事件

Question

tr.append($("<td/>").html('<input type="text" name="unit_price" id="unit_price"/>'));

这是我动态生成的文本框，我已经尝试了很多像下面这样的解决方案，但它不起作用帮助我极客

$("#unit_price").live("keyup", function(){  
     //Your Code to handle the click.
    }); 

$(staticAncestors).on(eventName, dynamicChild, function() {});

Answer 1

您需要使用event delegation 。

Event delegation allows us to attach a single event listener, to a parent element, that will fire for all descendants matching a selector, whether those descendants exist now or are added in the future.

$("body").on("keyup","#unit_price", function(){  
 //Your Code to handle the click.
});