Question

I m building a password box that holds three text areas. Each text area has one character. After I type the first character of the password, I have to press tab or use the mouse to get to the second text area to type the second character of the password. I would like to make this happen automatically (cursor movement) just right after I type in the first text area.

我如何能够做到这一点?

If you may ask, I m using Visual Studio .NET 2008 in C# I m a perfect newbie in .net and I don t know how to ask this question with the appropiate words.

谢谢。

Answer 1

Try onKeyPress。这应当照顾你们所期待的东西。

<input type="text" name="password" onKeyPress="autoTab()" />

<script type="text/javascript" language="JavaScript">
   function autoTab() {
     //do stuff
   }
</script>

这里的理论涉及改变一个领域的治疗地位。

http://www.webdeveloper.com/forum/showthread.php?t=91817。

这表明,你的自治职能应当如此。

function autoTab(field,nextFieldID){
  if(field.value.length >= field.maxLength){
    document.getElementById(nextFieldID).focus();
  }
}

Answer 2

你们是否在项目中使用 j子?

<!DOCTYPE html>
<html>
<head>
<title>example</title>
<style type="text/css">
    *
    {
        margin: 0;
        padding: 0;
    }
</style>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js"></script>
<script type="text/javascript">

    $(function () {

        $( #data1 ).keyup(function () {

            if ($(this).val().length == 1) {

                $( #data2 ).focus();
            }

        });

    });

</script>
</head>
<body>
<input id="data1" type="text" value="" style="width: 10px" /><br />
<input id="data2" type="text" value="" style="width: 10px" />
</body>
</html>

Answer 3

if textbox1.text.length > 0 then textbox2.focus();

友情链接