onsubmit

form onSubmit return false doesn't work in Chrome

由 不想你离开。 提交于 2019-12-10 14:19:51
问题 My return false statement doens't work in Chrome when I want to check the user input through javasript. It fires the action tag even when I return false. Here's my code <script type="text/javascript"> function testInput(){ if(document.getElementById("input1").value == ""){ alert('error'); return false; }else{ return true; } } </script> The HTML <form action="exec.php" method="post" onSubmit="return testInput()"> <input type="text" id="input1" name="input1" /> <input type="submit" value="Exec"

Several submit buttons in a single HTML form

由 人盡茶涼 提交于 2019-12-10 12:04:27
问题 I'll cut to the chase. I wish to have two separate buttons that does two unique functions. However, acquiring data from the same form. The current problem that I'm facing is onSubmit() will always be executed with whatever buttons I attach to the form instead of its own function. checkUser.js : Acquires username from the input field and tries to match it with the database (Oracle) Update 1: I have changed them accordingly. However, pressing Check still forwards me to StaffRegAuth.jsp instead

How to use onsubmit() to show a confirmation if there are multiple submit buttons on the same form?

由 左心房为你撑大大i 提交于 2019-12-09 04:20:25
问题 <form onsubmit="return confirm('Are you sure you want to rollback deletion of candidate table?')"> <input type='submit' name='delete' value='Undo' /> <input type='submit' name='no' value='No' /> when the user clicks on second submit button i.e No i want to display the confirmation dialogue as "Are you sure you want to commit the transaction." 回答1: <form method='post'> <input type='submit' name='undo' value='Undo' onclick="return confirm('Are you sure you want to rollback deletion of candidate

Form confirmation on submit

由 廉价感情. 提交于 2019-12-09 03:43:59
问题 I want to have a confirmation from the user before they submit a form. This will prevent accidental POSTing of the form, that may be incomplete or incorrect. Here is my form element: <form action="manager.php?method=update&id=<?php echo $user->id;?>" onsubmit="return confirm_update();" method="POST" id="user_update"> This calls my function confirm_update() function confirm_update() { if(confirm("Do you wish to update details?")) { return 0; } else { return 1; } } The problem with the script

Form is still submitted even though listener function returns false

由 我怕爱的太早我们不能终老 提交于 2019-12-08 17:39:57
问题 I'm trying to figure out why this JavaScript doesn't stop the form from being submitted: <form action="http://www.example.com" id="form"> <input type="text" /> <input type="submit" /> </form> <script> var code = function () { return false; }; var element = window.document.getElementById("form"); if (element.addEventListener) { element.addEventListener("submit", code, false); } </script> Unless I add the following onsubmit attribute to the form element: <form action="http://www.example.com" id

javascript function in jsp page

由 痞子三分冷 提交于 2019-12-08 08:09:58
问题 I have jsp page - <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> </head> <body> <legend>Create new customer</legend> <script Language="JavaScript"> function checkForm() { alert("YOU ARE IN checkForm FUNCTION !"); return (false); } </script> <form action="CreateCustomerServlet" method="GET" onsubmit="checkForm"> // form fields ... <input type="submit" value="Create customer" /> </form> </body> </html> When I run on server

How to add two “on submit=” values to a form?

由 痞子三分冷 提交于 2019-12-07 19:32:52
问题 I am trying to validate my form using two separate JavaScript functions: <form onsubmit="return formCheck(this); return validate_dropdown();" action="somepage.php" method="post" name="something"> When I add just one on submit value, each function works fine individually, when I add two only the first function's validation works, not the second. What is wrong here? 回答1: Remove the returns from the onsubmit and add them to the functions: onsubmit="return (formCheck(this) && validate_dropdown())

How to add two “on submit=” values to a form?

由 南楼画角 提交于 2019-12-06 07:36:32
I am trying to validate my form using two separate JavaScript functions: <form onsubmit="return formCheck(this); return validate_dropdown();" action="somepage.php" method="post" name="something"> When I add just one on submit value, each function works fine individually, when I add two only the first function's validation works, not the second. What is wrong here? Remove the returns from the onsubmit and add them to the functions: onsubmit="return (formCheck(this) && validate_dropdown())" onsubmit="return (formCheck(this) && validate_dropdown())" user706872 I don't have enough reputation to

React.js: submit form programmatically does not trigger onSubmit event

由 泄露秘密 提交于 2019-12-05 12:24:00
问题 I want to submit a React form after a click on a link. To do so I need to submit the form programmatically if the link is clicked. my problem is : onSubmit handler is not being fired after the form submit . Here is a code snipped that I made for this purpose: var MyForm = React.createClass({ handleSubmit: function(e){ console.log('Form submited'); e.preventDefault(); }, submitForm : function(e){ this.refs.formToSubmit.submit(); }, render: function() { return ( <form ref="formToSubmit"

Javascript not working on submit

由 纵饮孤独 提交于 2019-12-04 06:17:36
问题 In my HTML file, I have the following script: <script language = "javascript"> function validation(){ var x = document.forms["form"]["fieldx"].value; var y = document.forms["form"]["fieldy"].value; var act = document.forms["form"]["action"].value; if(x == null && y == null && act == "delete"){ var z = confirm("Fields have no input. Proceed at your own risk"); if(z==true) return true; else return false; } } </script> And the form: <form name="form" onsubmit="return validation()" action="cgi
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