Please support our JavaScript / DHTML / AJAX advertiser: PostgreSQL or MySQL? Compare and contrast the two most popular open source databases
Reply

•
•
Join Date: Mar 2008
Posts: 14
Reputation: farahphp is an unknown quantity at this point 
Solved Threads: 0
farahphp's Avatar
farahphp farahphp is offline Offline
Newbie Poster

Checkbox Help

 
0
  #1
Nov 11th, 2008
JavaScript / DHTML / AJAX Syntax (Toggle Plain Text) 
  1.  
  2. <html>
  3. <head>
  4. <script language=javascript>
  5. function updateopen()
  6. {
  7. var c_value = "";
  8. var cb = document.getres.checkbox;
  9.     for (var i=0; i < cb.length ; i++)
  10.    {
  11.    if (document.getres.checkbox[i].checked)
  12.       {
  13.       c_value = c_value + document.getres.checkbox[i].value + "\n";
  14.       }
  15.    }
  16. alert(c_value);
  17. //window.opener.document.getElementbyId(numbe33).value = c_value
  18. //window.close();
  19. }
  20. </script>
  21. </head>
  22. <body>
  23. <?
  24. echo '<form name="getres" id="getres">
  25. <p align=center><table border=1 cellpadding=3 cellspacing=0><tr>
  26. 		<th width=100px valign=bottom nowrap>
  27. 		<font face=arial size=3><br> Item Number</font></th>
  28. 		<th colspan=2 widht=200px valign=bottom nowrap><font face=arial size=3><br> Item Name </font></th></tr>';
  29.  
  30. for ($g=0;$g < sizeof($a); $g++)
  31. {
  32. echo '<tr><td align=middle name=number[] id=number nowrap><font size=2>'.$a[$g].'&nbsp;</font></td>';
  33. echo '<td align=middle name=itname[] id=itname nowrap><font size=2>'.$b[$g].'&nbsp;</font></td>';
  34. echo '<td><input type=checkbox name=checkbox[] value='.$a[$g].'></td></tr>';
  35. }
  36. echo '</table><br>';
  37. echo '<input type=button value=go onClick="updateopen()"></p>';
  38.  
  39. echo '</form></body></html>';
  40. }
  41.    include('Spec_dbclose.i');
  42. ?>

it gives me "cb is undefined" error dont know what is wrong ?????????
Reply With Quote Quick reply to this message  
•
•
Join Date: Apr 2004
Posts: 167
Reputation: Drew is an unknown quantity at this point 
Solved Threads: 7
Drew's Avatar
Drew Drew is offline Offline
Junior Poster

Re: Checkbox Help

 
0
  #2
Nov 19th, 2008
Here is a new function that actually loops through the checkboxes:

Javascript Syntax (Toggle Plain Text) 
  1. function updateopen() {
  2. 	var c_value = "";
  3. 	var cb = document.getres.checkbox;
  4.  
  5. 	for (var i=0; i < document.getres.length ; i++) {
  6. 		if (document.myForm[i].type=="checkbox" && document.getres.checkbox[i].checked) {
  7. 			c_value += document.getres.checkbox[i].value + "\n";
  8. 		};
  9. 	};
  10.  
  11. 	alert(c_value);
  12. 	//window.opener.document.getElementbyId(numbe33).value = c_value
  13. 	//window.close();
  14. }
Drew Gauderman
ASP / MSSQL Coder
http://www.iportalx.net - My ASP Portal
Reply With Quote Quick reply to this message  
•
•
Join Date: Jan 2007
Posts: 24
Reputation: sasankasekhar is an unknown quantity at this point 
Solved Threads: 3
sasankasekhar's Avatar
sasankasekhar sasankasekhar is offline Offline
Newbie Poster

Re: Checkbox Help

 
0
  #3
Nov 21st, 2008
•
•
•
•
Originally Posted by farahphp View Post
JavaScript / DHTML / AJAX Syntax (Toggle Plain Text) 
  1.  
  2. <html>
  3. <head>
  4. <script language=javascript>
  5. function updateopen()
  6. {
  7. var c_value = "";
  8. var cb = document.getres.checkbox;
  9.     for (var i=0; i < cb.length ; i++)
  10.    {
  11.    if (document.getres.checkbox[i].checked)
  12.       {
  13.       c_value = c_value + document.getres.checkbox[i].value + "\n";
  14.       }
  15.    }
  16. alert(c_value);
  17. //window.opener.document.getElementbyId(numbe33).value = c_value
  18. //window.close();
  19. }
  20. </script>
  21. </head>
  22. <body>
  23. <?
  24. echo '<form name="getres" id="getres">
  25. <p align=center><table border=1 cellpadding=3 cellspacing=0><tr>
  26. 		<th width=100px valign=bottom nowrap>
  27. 		<font face=arial size=3><br> Item Number</font></th>
  28. 		<th colspan=2 widht=200px valign=bottom nowrap><font face=arial size=3><br> Item Name </font></th></tr>';
  29.  
  30. for ($g=0;$g < sizeof($a); $g++)
  31. {
  32. echo '<tr><td align=middle name=number[] id=number nowrap><font size=2>'.$a[$g].'&nbsp;</font></td>';
  33. echo '<td align=middle name=itname[] id=itname nowrap><font size=2>'.$b[$g].'&nbsp;</font></td>';
  34. echo '<td><input type=checkbox name=checkbox[] value='.$a[$g].'></td></tr>';
  35. }
  36. echo '</table><br>';
  37. echo '<input type=button value=go onClick="updateopen()"></p>';
  38.  
  39. echo '</form></body></html>';
  40. }
  41.    include('Spec_dbclose.i');
  42. ?>

it gives me "cb is undefined" error dont know what is wrong ?????????

"cb is undefined"

Your problem is document.getres.checkbox is not giving you a list of checkboxes.
Instead I suggest you to loop through the rows of of the <Table> where you have placed your chekcboxes.
What you have to do
Assign an ID to the TABLE (<TABLE id = "holder">)

and below is your updated function:
JavaScript / DHTML / AJAX Syntax (Toggle Plain Text) 
  1. function updateopen()
  2. {
  3. var c_value = "";
  4. var cb = document.getElementsByName('checkbox'); 
  5. var tbl = document.getElementById("holder");//This will get u the Table
  6. var tbody = tbl.childNodes[0];//This will get u the TBODY tag
  7. var rows = tbody.childNodes;//This will get u the list of all the Rows in the TABLE
  8. //alert(tbl.childNodes[0].tagName); 
  9.  
  10.     //for (var i=0; i < cb.length ; i++)
  11. 	for (var i=1; i < rows.length ; i++)//We start from i=1 not 0 because the first row dows not contain checkboxes
  12.    {
  13.   // if (document.getres.checkbox[i].checked)
  14.   if(rows[i].childNodes[2].childNodes[0].checked)
  15.       {
  16.       //c_value = c_value + document.getres.checkbox[i].value + "\n";
  17.       c_value = c_value + rows[i].childNodes[2].childNodes[0].value + "\n";
  18. 	  }
  19.    }
  20. alert(c_value);
  21. //window.opener.document.getElementbyId(numbe33).value = c_value
  22. //window.close();
  23. }

Regards ...
IF SOMEONE FEELS THAT THEY HAD NEVER MADE A MISTAKE IN THEIR LIFE, THEN  IT MEANS THEY HAD NEVER TRIED A NEW THING IN THEIR LIFE
Reply With Quote Quick reply to this message  
Reply

Quick Reply to Thread
This thread is more than three months old.
Perhaps start a new thread instead?
•
•
•
•
•
•
•
•
Message:
•
•
•
•



Similar Threads
Other Threads in the JavaScript / DHTML / AJAX Forum
Thread Tools Search this Thread



acid2 ajax ajaxexample ajaxjspservlets array beta box browser captchaformproblem cart checkbox child close codes column css date debugger decimal dependent design disablefirebug dom download editor element embed engine enter error events explorer ext file firefox form forms frameworks getselection google gwt gxt hiddenvalue highlightedword hint html ie7 ie8 iframe index internet java javascript javascripthelp2020 jquery jsf jsfile jsp jump libcurl listbox maps masterpage math media menu mimic mp4 object onmouseoutdivproblem onmouseover onreadystatechange parent paypal pdf php position post problem programming prototype redirect runtime safari scale scriptlets scroll search security select shopping size software unicode w3c web window windowofwords wysiwyg \n
About Us | Contact Us | Advertise | DaniWeb | Acceptable Use Policy | RSS Feed

©2003 - 2009 DaniWeb® LLC