仅允许输入标记中的数字而不使用Javascript [英] Only allow Numbers in input Tag without Javascript
本文介绍了仅允许输入标记中的数字而不使用Javascript的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我很新.我正在创建一个向用户询问其ID的网页.我希望它是必填字段,并且只允许输入数字.如果您带领我朝正确的方向前进,我将不胜感激.这就是我到目前为止所拥有的.
I am fairly new. I am creating a webpage that ask a user for their ID. I want it to be a required field and only allow numbers. I appreciate if you lead me in the correct direction. this is what I have so far.
<%@ Page Language="C#" Inherits="System.Web.Mvc.ViewPage<dynamic>" %>
<!DOCTYPE html>
<html>
<head runat="server">
<title>Search</title>
</head>
<body>
<div>
<table align="center">
<tr>
<td class="label">
Enter ID:
</td>
<td>
<input type="text" name="UserId" id="UserId" />
</td>
</tr>
</table>
</div>
</body>
</html>
推荐答案
尽管可能建议通过JS或在服务器上进行更严格的验证,但HTML5
Though it's probably suggested to get some heavier validation via JS or on the server, HTML5 does support this via the pattern attribute.
<input type= "text" name= "name" pattern= "[0-9]" title= "Title"/>
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