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How to make jQuery enter trigger button event

php中世界最好的语言Original: 2018-05-03 14:01:131724browse

This time I will show you how to make jQuery enter to trigger a button event, and what are the precautions for jQuery to trigger a button event by pressing enter. The following is a practical case, let’s take a look.

<!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>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 () {
      $('#Submit').click(function () {
        var account = $('#AccountInput').val();
        var password = $('#PasswordInput').val();
        if (account == '') {
          alert('Please input account.');
          $('#AccountInput').focus();
          return false;
        }
        if (password == '') {
          alert('Please input password.');
          $('#PasswordInput').focus();
          return false;
        }
        if (account == 'chad' && password == '123456') {
          alert('Login success.');
        }
        else {
          alert('Login failed.');
        }
      });
      $(document).keydown(function (event) {
        if (event.keyCode == 13) {
          $('#Submit').triggerHandler('click');
        }
      });
    });
  </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>

I believe you have mastered the method after reading the case in this article. For more exciting information, please pay attention to other related articles on the php Chinese website!

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