from表单禁止提交
来源：互联网 发布：html5 canvas js框架 编辑：程序博客网 时间：2024/04/29 07:26
1、JavaScript验证阻止提交表单
- <html>
- <head>
- <meta http-equiv="Content-Type" content="text/html; charset=gbk">
- <title>JavaScript禁止提交表单</title>
- <script type="text/javascript">
- function getObj(id){
- var Obj = document.getElementById(id).value;
- return Obj;
- }
-
- function check(){
- if(getObj("test")==""){
- alert("文本框输入为空，不能提交表单！");
- document.getElementById("test").focus;
- return false;
- }
- }
- </script>
- </head>
- <body>
- <form action="index.htm" method="post" onsubmit="return check()">
- <input type="text" name="test" id="test">
- <input type="submit" value="提交">
- </form>
- </body>
- </html>
2、jQuery验证阻止表单提交
- <html>
- <head>
- <meta http-equiv="Content-Type" content="text/html; charset=gbk">
- <script type="text/javascript" src="/sunchis/script/jquery-1.3.2.js"></script>
- <script type="text/javascript">
- $(document).ready(function(){
- $(":submit[id=tijiao]").click(function(check){
- var val = $(":text[id=test]").val();
- if(val==""){
- alert("文本框输入为空，不能提交表单！");
- $(":text[id=test]").focus();
- check.preventDefault();
- }
- });
- });
- </script>
- <title>jQuery禁止提交表单</title>
- </head>
- <body>
- <form action="index.htm" method="post">
- <input type="text" name="test" id="test">
- <input type="submit" id="tijiao" value="提交">
- </form>
- </body>
- </html>
