Thread: Confirmation box before delete
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05-21-2002, 10:40 AM #1
New User
Status- Offline
Join Date- May 2002
Location- Near Chicago
Posts- 8
Confirmation box before delete
<form method=POST action="Delete">
.
.
.
<input type="submit" name="Delete" value="Delete">
</form>
What I would like to do is have a confirmation box pop up when a user presses the "Delete" button and have a message along with 2 buttons on the box, "Yes" and "No".
Thanks!
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05-21-2002, 01:41 PM #2
Senior Member
Status- Offline
Join Date- Mar 2001
Location- Hamburg, NY
Posts- 312
Im not 100% sure on this, put stick this in your head
Now, on your form, you should haveCode:<script language="JavaScript"> var cnf; var last; function cnf(msg) { cnf = confirm(msg); if(cnf) { last = 'TRUE'; } } function send(var) { if(last = "TRUE") { var.submit(); } } </script>
<form name="form">
and your submit button:
<input type="Submit" Value="delete" name="delete" onclick="cnf('Are you sure you want to delete that?'); send(this);">
This isn't tested, and Im new to javascript, so your gonna have to tell me the outcome
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05-21-2002, 02:56 PM #3
New User
Status- Offline
Join Date- May 2002
Location- Near Chicago
Posts- 8
Thanks for trying but it doesn't seem to be working. Here is the entire code for that page. Does anyone see anything wrong?
<script Language="JavaScript"><!--
function y2k(number) { return (number < 1000) ? number + 1900 : number; }
function ValProjectMaint(theForm)
{
if (theForm.ChgProject.value == "")
{
alert("Please enter a value for Title.");
theForm.ChgProject.focus();
return (false);
}
if (theForm.Longd.value == "")
{
alert("Please enter a value for Long Project Desc.");
theForm.Longd.focus();
return (false);
}
if (theForm.Longd.value.length > 250)
{
alert("You can not enter more than 250 characters in Long Description.");
theForm.Longd.focus();
return (false);
}
// checks if date passed is in valid yyyy/mm/dd format
var checkSDate = theForm.StartDate
var checkEDate = theForm.EndDate
var reason = '';
var sep = '-';
if (checkSDate.value != "") {
if (checkSDate.value.length == 10) {
if (checkSDate.value.substring(4,5) == sep && checkSDate.value.substring(7,8) == sep) {
var date = checkSDate.value.substring(8,10);
var month = checkSDate.value.substring(5,7);
var year = checkSDate.value.substring(0,4);
var test = new Date(year,month-1,date);
if (year == y2k(test.getYear()) && (month-1 == test.getMonth()) && (date == test.getDate())) {
reason = '';
}
else {
alert("Start date is invalid. Make sure you use format YYYY-MM-DD.");
checkSDate.focus();
reason = 'valid format but an invalid date';
return (false);
}
}
else {
alert("Please use a date separator of ' - ' in date field.");
checkSDate.focus();
reason = 'invalid spearators';
return (false);
}
}
else {
alert("Please use a 10 position date in the format of YYYY-MM-DD.");
checkSDate.focus();
reason = 'invalid length';
return (false);
}
}
if (checkEDate.value != "") {
if (checkEDate.value.length == 10) {
if (checkEDate.value.substring(4,5) == sep && checkEDate.value.substring(7,8) == sep) {
var date = checkEDate.value.substring(8,10);
var month = checkEDate.value.substring(5,7);
var year = checkEDate.value.substring(0,4);
var test = new Date(year,month-1,date);
if (year == y2k(test.getYear()) && (month-1 == test.getMonth()) && (date == test.getDate())) {
reason = '';
}
else {
alert("End date is invalid. Make sure you use format YYYY-MM-DD.");
checkEDate.focus();
reason = 'valid format but an invalid date';
return (false);
}
}
else {
alert("Please use a date separator of ' - ' in date field.");
checkEDate.focus();
reason = 'invalid spearators';
return (false);
}
}
else {
alert("Please use a 10 position date in the format of YYYY-MM-DD.");
checkEDate.focus();
reason = 'invalid length';
return (false);
}
if (checkEDate.value < checkSDate.value)
{
alert("End Date cannot be earlier than the Start Date.");
theForm.ChgProject.focus();
return (false);
}
}
}
//--></script> <script language="JavaScript">
var cnf;
var last;
function cnf(msg)
{
cnf = confirm(msg);
if(cnf) {
last = 'TRUE';
}
}
function send(var)
{
if(last = "TRUE")
{
var.submit();
}
}
</script>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=windows-1252">
<title>Initial Screen</title>
</head>
<body bgcolor="#EAE8C8">
<table>
</table>
<p align="center" style="margin-left: 0; margin-top: -2; margin-bottom: 10"><b>
<font face="Verdana" color="#993333" size="4">Dynamic Systems Resources, Inc.
</font></b>
</p>
<br>
<table border="1" width="100%">
<tr>
<td width="100%" bgcolor="#0033CC"><b><font size="3" face="Verdana" color="#FFFFFF">Maintain
Project</font></b></td>
</tr>
</table>
<br>
<table border="0">
<p style="margin-top: 2; margin-bottom: 13">
<tr>
<td>
<font color="#008080" face="Verdana"><b>
<font size="3">Client:
</font> </b>
</td>
<td>
</font>
<font face="Verdana" size="3" color="#993333"><b>Butler</b>
</font>
<font face="Verdana">
</font>
</b>
</td>
</tr>
</p>
<p style="margin-top: 2; margin-bottom: 13">
<tr>
<td>
<font color="#008080" face="Verdana"><b>
<font size="3">Project:
</font></b>
</td>
<td>
</font>
<font face="Verdana" size="3" color="#993333"><b>new project</b>
</font>
<font face="Verdana" size="2" color="#008080">
</font>
</td>
</tr>
</p>
</table>
<br><hr><br>
<form method=POST action="Update" onsubmit="return ValProjectMaint(this)">
<table border="0" cellspacing="0">
<tr>
<td> <p align="left">
<font color="#008080" face="Verdana"><b>
<font size="3">Project Description:
</font></b></font>
</p>
</td>
<td>
<p align="left">
<input type=text name=ChgProject size=25 maxlength=25 value="new project"> </p></td>
</tr>
<tr valign=top>
<td> <p align="left">
<font color="#008080" face="Verdana"><b>
<font size="3">Long Project Desc:
</font></b></font>
</p>
</td>
<td> <p align="left"> <textarea name=Longd cols=50 rows=5 wrap=virtual>new project</textarea></p> </td>
</tr>
<tr>
<td> <p align="left">
<font color="#008080" face="Verdana"><b>
<font size="3">Start Date: (YYYY-MM-DD)
</font></b></font>
</p>
</td>
<td> <p align="left"> <input type=text name=StartDate size=10 maxlength=10 value="2002-04-01"> </p></td>
</tr>
<tr>
<td> <p align="left">
<font color="#008080" face="Verdana"><b>
<font size="3">End Date: (YYYY-MM-DD)
</font></b></font>
</p>
</td>
<td> <p align="left"> <input type=text name=EndDate size=10 maxlength=10 value=""> </p></td>
</tr>
<tr>
<td> </td>
<td>
<table>
<tr>
<td>
<input type="hidden" name="new" value="">
<input type="hidden" value="DSR" name="Comp">
<input type="hidden" value="Butler" name="Client">
<input type=hidden value="Butler" name="SaveClient">
<input type="hidden" value="new project" name="Project">
<input type="hidden" value="Joe Schmo" name="Assoc">
<input type="hidden" value="Vacation" name="Hrtyp">
<input type=hidden value="Y" name="Entry">
<input type="submit" value="Update" name="Update">
</form>
</td>
<td>
<form method=POST action="Delete">
<input type="hidden" value="DSR" name="Comp">
<input type="hidden" value="Butler" name="Client">
<input type=hidden value="Butler" name="SaveClient">
<input type="hidden" value="new project" name="Project">
<input type="hidden" value="Joe Schmo" name="Assoc">
<input type="hidden" value="Vacation" name="Hrtyp">
<input type=hidden value="Y" name="Entry">
<input type="submit" name="Delete" value="Delete" onclick="cnf('Are you sure you want to delete that?'); send(this);">
</form>
</td>
</tr>
</table>
</td>
</tr>
</table>
<br>
<br>
</body>
</html>
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05-21-2002, 03:42 PM #4
Administrator
Status- Offline
Join Date- Oct 2000
Location- Bournemouth, UK
Posts- 2,662
Try this -
In JS, its the 'return' that makes the difference. basically, you are saying 'If they answer yes, then submit the form, otherwise, just bail'.Code:<form method="post" action="blah.php" onSubmit="return confirm('Are you sure this is correct?');">
try it. I tested it and it worked.If one of our members helps you, please click the
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05-21-2002, 07:05 PM #5
Senior Member
Status- Offline
Join Date- Mar 2001
Location- Hamburg, NY
Posts- 312
Im glad someone knows some JS ;P
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