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Home: Perl Programming Help: Beginner:
onClick event is not working in cgi

 


aurora
Novice

Apr 5, 2012, 1:23 AM

Post #1 of 6 (1228 views)
onClick event is not working in cgi Can't Post
hi,
I used a button onClick in cgi as shown below....
Code
$q->button(-name=>'add_details',-id=>"button_id",-value=>"button_val",-onClick=>"Update_database()"));
but its not working as expected....nothing will happen if i click on the button....
Please help me what changes i nee to do for my cgi prg?


Zhris
User

Apr 5, 2012, 1:28 PM

Post #2 of 6 (1206 views)
Re: [aurora] onClick event is not working in cgi [In reply to] Can't Post
Hi,

You haven't provided enough info / code to provide a definitive solution. The only problem I can see with the code you provided is the extra closing parenthesis on the end, which should be reported as a syntax error (could be where you copied and pasted though). My guess is that the Update_database javascript function isn't working correctly.

Chris


(This post was edited by Zhris on Apr 5, 2012, 1:29 PM)


wickedxter
User

Apr 7, 2012, 12:06 PM

Post #3 of 6 (1139 views)
Re: [aurora] onClick event is not working in cgi [In reply to] Can't Post
from what if read the -OnClick is for javascript calls
http://cpansearch.perl.org/src/LDS/CGI.pm-3.43/cgi_docs.html


aurora
Novice

Apr 9, 2012, 9:23 PM

Post #4 of 6 (1100 views)
Re: [Zhris] onClick event is not working in cgi [In reply to] Can't Post
my complete code is:

Code
#!/usr/bin/perl 
use strict; 
use warnings; 
use CGI; 
my $cgi = CGI->new(); 
print STDOUT "Content-type: text/html\n\n"; 
print "<html>\n"; 
print "<head>\n"; 
print "<script type='text/javascript'>\n"; 
print "function CheckForm_onclick() \n"; 
print "{\n"; 
print "var myForm = document.form1;//document.getElementById(\"form1\")"; 
print "var message = \"\""; 
print "alert(1)"; 
print "if (myForm.userid.value == \"\") {"; 
print "alert(1)\n"; 
print "message = \"Please enter your user id.\"\n"; 
print "}\n"; 
print "alert(message)\n"; 
print "if (message != \"\") {\n"; 
print "alert(message)\n"; 
print "return(false)\n"; 
print "}\n"; 
print "else {\n"; 
print "return(true)\n"; 
print "}\n"; 
print "}\n"; 
print "</script> \n"; 
 
print "<title>Ticket Purchases for Special Events</title>"; 
print "</head>"; 
print "<body>"; 
print "<form id=\"form1\" name=\"form1\" >"; 
print "<table><td><p>User ID: <input type=\"text\" name=\"userid\" value=\"\" size=\"7\">"; 
print "<input type='Button' id='val' value='View' align='middle' onclick=\"CheckForm_onclick()\" ></p></td></table></form>"; 
print "</body>"; 
print "</html>";


Zhris
User

Apr 10, 2012, 12:38 PM

Post #5 of 6 (1069 views)
Re: [aurora] onClick event is not working in cgi [In reply to] Can't Post
Hi,

- Your "complete code" does not make use of the code in your original post.
- Running your code instantly produced a javascript error, which was the likely cause of your issue.
- You can print blocks of HTML (see example below).
- If you do want to use individual print statements, its probably best to use quote like operators e.g. q or qq.
- For top marks, use a template module!
- Your code makes no special use of Perl and as it stands would be more suitable in a html file.
etc

Here is my re-write of your code (your javascript was messy therefore I may have adapted it incorrectly):

Code
#!/usr/bin/perl  
use strict;  
use warnings;  
use CGI;  
 
my $cgi = CGI->new();  
print $cgi->header(); 
 
print <<"HTMLcode"; 
	<html> 
	<head> 
	<script type="text/javascript"> 
		function CheckForm_onclick() 
		{ 
			var myForm = document.form1; 
			var userid = myForm.userid.value; 
			if (userid == "") 
			{ 
				alert('Please enter your user id'); 
				return false; 
			} 
			else 
			{ 
				alert('Your user id is ' + userid); 
				return true; 
			} 
		} 
	</script> 
	</head> 
	<body> 
	<form id="form1" name="form1"> 
		<table> 
			<tr> 
				<td> 
					User ID: <input type="text" name="userid" value="" size="7" /> 
					<input type="Button" id="val" value="View" align="middle" onclick="CheckForm_onclick()" /> 
				</td> 
			</tr> 
		</table> 
	</form> 
	</body> 
	</html> 
HTMLcode 
 
1;
Chris


(This post was edited by Zhris on Apr 10, 2012, 12:40 PM)


aurora
Novice

Apr 16, 2012, 12:11 AM

Post #6 of 6 (988 views)
Re: [Zhris] onClick event is not working in cgi [In reply to] Can't Post
Thank u for ur reply...:)Smile

 
 


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