[英]How to change the CSS property (border color) of input tag of form on button click and also submit data?
我有test2.php文件,该文件在echo“”的php标签内具有html形式; 这样,我在表单内也有一个提交按钮,我的问题是在提交单击时,表单数据通过表单方法发布发送到收件人页面,而且还更改了输入类型的css属性,以便确认特定的表单输入是提交。
test2.php的内容
<!DOCTYPE html>
<html>
<head>
<title></title>
<style type="text/css">
.form-filled{
border: 1px solid #ffff00;
}
</style>
</head>
<body>
<form id='form1' action='test2.php' method='post'>
<label></label>
<input type='text' name='fname' value='Rinku' >
<input type='text' name='lname' value='yadav' >
<input type='text' name='deg' value='BE' >
<input type='text' name='course' value='CSE' >
<label>checkbox: </label>
<input type='checkbox' name='check' onchange='checkfunction()'>
<br>
<input type='submit' name='submit1' value='Submit1' onclick="alert('submit 1 button pressed');">
<input type=submit name='submit2' value='Submit2' onclick='myfunction()'>
</form>
<?php
echo "<form id='form2' action='test2.php' method='post'>";
echo "<label></label>";
echo "<input type='text' name='fname' value='Rinku' >";
echo "<input type='text' name='lname' value='yadav' >";
echo "<input type='text' name='deg' value='BE' >";
echo "<input type='text' name='course' value='CSE' >";
echo "<label>checkbox: </label>";
echo "<input type='checkbox' name='check' onchange='checkfunction()'>";
echo "<br>";
echo "<input type='submit' name='submit1' value='Submit1' onclick="."alert('submit 1 button pressed');".">";
echo "<input type=submit name='submit2' value='Submit2' onclick='myfunction()'>";
echo "</form>";
?>
<script type='text/javascript'>
function myfunction(){
alert('Submit 2 is clicked!');
$('input').addClass("form-filled");
}
function checkfunction(){
alert('checkbox is check/unchecked');
}
</script>
</body>
</html>
您错误地应用了jQuery的CSS。 最好在输入元素上添加类,然后在该类上应用CSS。
更改此行:
$('input').css({'border: 1px solid #ffff00;'});
用这一行:
$('input').addClass("form-filled");
顺便说一下,这行中的elm
是什么:
document.elm.style.border = "3px solid #FF0000";
它还未定义elm
而引发错误。
这是我刚刚在课堂上更改边界的演示。
function myfunction(){ alert('Submit 2 is clicked!'); $('input[type=text]').addClass("form-filled"); } function checkfunction(){ alert('checkbox is check/unchecked'); } $("form").submit(function(e){ e.preventDefault(); });
.form-filled{ border: 1px solid #ffff00; }
<!DOCTYPE html> <html> <head> <title></title> <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script> </head> <body> <form id='form1' action='test2.php' method='post'> <label></label> <input type='text' name='fname' value='Rinku' > <input type='text' name='lname' value='yadav' > <input type='text' name='deg' value='BE' > <input type='text' name='course' value='CSE' > <label>checkbox: </label> <input type='checkbox' name='check' onchange='checkfunction()'> <br> <input type='submit' name='submit1' value='Submit1' onclick="alert('submit 1 button pressed');"> <input type=submit name='submit2' value='Submit2' onclick='myfunction()'> </form> <hr> <form id='form2' action='' method='post'> <label></label> <input type='text' name='fname' value='Rinku' > <input type='text' name='lname' value='yadav' > <input type='text' name='deg' value='BE' > <input type='text' name='course' value='CSE' > <label>checkbox: </label> <input type='checkbox' name='check' onchange='checkfunction()'> <br> <input type='submit' name='submit1' value='Submit1' onclick="."alert('submit 1 button pressed');"."> <input type=submit name='submit2' value='Submit2' onclick='myfunction()'> </form> </body> </html>
仅突出显示单击的表单字段的示例:
$("form .submit2").click(function() { alert('Submit 2 is clicked!'); var formId = $(this).parent().attr("id"); $('#' + formId + ' input[type=text]').addClass("form-filled"); }); function checkfunction(){ alert('checkbox is check/unchecked'); } $("form").submit(function(e){ e.preventDefault(); });
.form-filled{ border: 1px solid #ffff00; }
<!DOCTYPE html> <html> <head> <title></title> <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script> </head> <body> <form id='form1' action='test2.php' method='post'> <label></label> <input type='text' name='fname' value='Rinku' > <input type='text' name='lname' value='yadav' > <input type='text' name='deg' value='BE' > <input type='text' name='course' value='CSE' > <label>checkbox: </label> <input type='checkbox' name='check' onchange='checkfunction()'> <br> <input type='submit' name='submit1' value='Submit1' onclick="alert('submit 1 button pressed');"> <input type=submit name='submit2' value='Submit2' class="submit2"> </form> <hr> <form id='form2' action='' method='post'> <label></label> <input type='text' name='fname' value='Rinku' > <input type='text' name='lname' value='yadav' > <input type='text' name='deg' value='BE' > <input type='text' name='course' value='CSE' > <label>checkbox: </label> <input type='checkbox' name='check' onchange='checkfunction()'> <br> <input type='submit' name='submit1' value='Submit1' onclick="alert('submit 1 button pressed');"> <input type=submit name='submit2' value='Submit2' class="submit2"> </form> </body> </html>
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