[英]specific e-mail pattern control with javascript
I've a textBox control and would like my users to only be able to enter ....@firm1.com'
or '....@firm2.com'
我有一个textBox控件,希望我的用户只能输入....@firm1.com'
或'....@firm2.com'
How can I do this with a JavaScript function? 如何使用JavaScript函数执行此操作? The function must take a textbox value. 该函数必须采用文本框值。
It doesn't make sense to give the user a textbox but allowing him to write two values only, 给用户一个文本框是没有意义的,而只允许他写两个值,
You should use a dropdown instead: 您应该改用下拉菜单:
<select>
<option value="0"> @firm1.com </option>
<option value="1"> @firm2.com </option>
</select>
Update: 更新:
If you really have to use textbox for some unknown reason: 如果由于某些未知原因您确实必须使用文本框:
$('#textboxId').change(function(){
if (!this.value.match(/(@firm1.com|@firm2.com)$/g))
alert('invalid value');
});
Try this code- 试试这个代码-
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<script type="text/javascript">
var patt1 = "[A-Za-z0-9._%+-]+@firm(1|2).com";
function demoShowMatchClick(str) {
var re = new RegExp(patt1);
var m = re.exec(str);
if (m == null) {
document.getElementById("match").innerHTML = "no match";
} else {
document.getElementById("match").innerHTML = "match";
}
}
</script>
</head>
<body>
<span id="match"></span>
<input type="text" onkeyup="demoShowMatchClick(this.value)" />
</body>
</html>
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