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Example of carriage return trigger button event function implemented by jQuery

亚连Original: 2018-05-29 09:47:571596browse

This article mainly introduces the enter trigger button event function implemented by jQuery, involving implementation techniques related to jQuery event response and dynamic operation of page element attributes. Friends in need can refer to the following

This article describes jQuery with examples Implemented enter trigger button event function. Share it with everyone for your reference, the details are as follows:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta charset="utf-8"/>
  <title>www.jb51.net jQuery回车触发按钮事件</title>
  <script src="jquery-1.4.2.min.js" type="text/javascript"></script>
  <script language="javascript" type="text/javascript">
    $(function () {
      $(&#39;#Submit&#39;).click(function () {
        var account = $(&#39;#AccountInput&#39;).val();
        var password = $(&#39;#PasswordInput&#39;).val();
        if (account == &#39;&#39;) {
          alert(&#39;Please input account.&#39;);
          $(&#39;#AccountInput&#39;).focus();
          return false;
        }
        if (password == &#39;&#39;) {
          alert(&#39;Please input password.&#39;);
          $(&#39;#PasswordInput&#39;).focus();
          return false;
        }
        if (account == &#39;chad&#39; && password == &#39;123456&#39;) {
          alert(&#39;Login success.&#39;);
        }
        else {
          alert(&#39;Login failed.&#39;);
        }
      });
      $(document).keydown(function (event) {
        if (event.keyCode == 13) {
          $(&#39;#Submit&#39;).triggerHandler(&#39;click&#39;);
        }
      });
    });
  </script>
</head>
<body>
  <form id="form1" runat="server">
  <p>
    <table>
      <tr>
        <td> account</td>
        <td><input id="AccountInput" type="text" style="width: 150px;" /></td>
      </tr>
      <tr>
        <td>password</td>
        <td><input id="PasswordInput" type="text" style="width: 150px;" /></td>
      </tr>
      <tr>
        <td><input id="Submit" type="button" value="submit"/></td>
      </tr>
    </table>
  </p>
  </form>
</body>
</html>

Operation effect:

The above is what I compiled for everyone. I hope it will be helpful to everyone in the future. .

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