Javascript Form - 如何處理TextField焦點(diǎn)丟失事件
我們想知道如何處理TextField焦點(diǎn)丟失事件。
<html>
<head>
<script type="text/javascript" language="javascript">
function ChangeStatus(){
console.log("focus lost");
if (document.MyForm.MyTextField.value!==""){
document.MyForm.Comments.readOnly = false;
document.MyForm.Comments.select();
} else{
document.MyForm.MyTextField.focus();
}
}
</script>
</head>
<body>
<table>
<form name="MyForm" action="" method="Post">
<tr>
<td><input type="text" name="MyTextField" onblur="ChangeStatus()"/></td>
<td>Enter your name</td>
</tr>
<tr>
<td><textarea name="Comments" rows="6" cols="40">Please enter your name first</textarea></td>
<td>Enter your comments.</td>
</tr>
<tr>
<td><input type="submit" value="Click to Submit"/></td>
<td> </td>
</tr>
</table>
</form>
</body>
</html>
The code above is rendered as follows:
【text_input】
