如何在onblur事件中验证空文本框？

问题描述：

我的页面中有2个文本框，我想验证TextBoxes在onblur事件。但onblur事件是为这两个文本框连续执行的，

请检查以下代码 -

< head runat =" server">

&NBSP; < title>< / title>

&NBSP; < script>

&NBSP; &NBSP; &NBSP;功能验证（c）{

&NBSP; &NBSP; &NBSP; &NBSP; &NBSP; if（c.value ==''）{

&NBSP; &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; &NBSP;提示（c.id +"是空的。"）;

&NBSP; &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; c.select（）;

&NBSP; &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; &NBSP;返回false;

&NBSP; &NBSP; &NBSP; &NBSP; &NBSP; }¥b $ b &NBSP; &NBSP; &NBSP; }

&NBSP; < / script>

< / head>

< body>

&NBSP; < form id =" form1" runat =" server">

&NBSP; &NBSP; &NBSP; < div>

&NBSP; &NBSP; &NBSP; &NBSP; &NBSP; < input type =" text" ID = QUOT;文本1&QUOT; onblur =" return validate（this）" />

&NBSP; &NBSP; &NBSP; &NBSP; &NBSP; < input type =" text" ID = QUOT;文本2&QUOT; onblur =" return validate（this）" />
$

&NBSP; &NBSP; &NBSP; < / div>

&NBSP; < / form>

< / body>

< / html>

<head runat="server">
<title></title>
<script>
function validate(c) {
if (c.value == '') {
alert(c.id + " is empty.");
c.select();
return false;
}
}

</script>
</head>
<body>
<form id="form1" runat="server">
<div>
<input type="text" id="Text1" onblur="return validate(this)" />
<input type="text" id="Text2" onblur="return validate(this)" />

</div>
</form>
</body>
</html>

请告诉我，如何解决这个问题？

Please let me know, How to solve this problem?

提前致谢。

答

你可能最好做所有检查onSubmit（），而不是onBlur（），然后捕捉空白字段
你可能最好不要对onBlmit（）进行所有检查，而不是onBlur （），然后捕捉空白字段并提醒用户.. 和
提醒用户..

如何在onblur事件中验证空文本框？

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