www.webdeveloper.com
Results 1 to 6 of 6

Thread: ajax and checkboxes

  1. #1
    Join Date
    Feb 2004
    Posts
    92

    ajax and checkboxes

    Ok, I built a messaging system where we can message each other and it also puts system messages into the system.

    now my inbox has like 50 messages and I am trying to work on a way to delete them all with one big swoop.

    I know the code for the checkboxes and I know the code for the button to check all and uncheck all.

    I want to use ajax though and therefore there lies my problem...

    for example:

    <input type="checkbox" name="msg" value="1">
    <input type="checkbox" name="msg" value="2">
    <input type="checkbox" name="msg" value="3">
    <input type="checkbox" name="msg" value="4">
    <input type="checkbox" name="msg" value="5">

    if the user had all those checked I don't think this would work:
    document.getElementsById('msg')[0].value if they had more than one checked, or at all because there are more than one.
    So how do I get the 'list' of all of them to pass as if the form was submitted?

    I would appreciate any help.
    thankz,
    Richard

  2. #2
    Join Date
    Dec 2003
    Location
    Bucharest, ROMANIA
    Posts
    15,428
    First: document.getElementsById('msg') is not a correct reference. Your elements have a name, not an id. And the id must be unique. But document.getElementsByName() will do the job. This method returns a collection.

    Second, you don't have to send all the pairs name=value with AJAX, you may send only one. In fact, I think the best way is to send the values as a JSON object. See, also:
    http://www.ibm.com/developerworks/xm...axintro11.html

  3. #3
    Join Date
    Feb 2004
    Posts
    92
    thank you.

    So, would I just pass it this way:

    'msg',document.getElementsByName('msg').value
    or like this:
    'msg',document.getElementsByName('msg').values

    the second adding a s behind value to mean all of them...
    I think it would be the first since I did not add ('msg')[0] meaning only the first... but again I am not sure.

    Thanks,
    Richard

  4. #4
    Join Date
    Feb 2004
    Posts
    92
    yeah that did not work... I think I have to do something different. I will search this forum I think there is code to do a for statement to loop through each checkbox and get the value of those checked or something...
    thx,
    Richard

  5. #5
    Join Date
    Feb 2004
    Posts
    92
    I cannot find anything on it.

    Here is what I do for the radio buttons:

    Code:
    function getRadioValue(name)
    {
    	var found = '';
    	var all =	document.getElementsByTagName('input');
    	for(i=0;i<all.length;i++) {
    		if(all[i].getAttribute('name') == name && all[i].checked) {
    			found = all[i].value;
    			break;
    		}
    	}
    	return found;
    }
    So, isn't there a way to do the same thing with checkboxes but just not have a break in there and it gets a list of all of the checked boxes into an array or something to pass in ajax?

    Thanks,
    Richard

  6. #6
    Join Date
    Feb 2004
    Posts
    92
    found it...

    Code:
    function checkboxValues(name){
        var fs = document.getElementsByName(name);
        var n;
        var values = new Array();
        for (var i = 0; n = fs[i]; i++) {
            if (n.checked == true) {
                values[i]=n.value;
            }
        }
        return values;
    }
    thx,
    Richard

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
HTML5 Development Center

"

"

X vBulletin 4.2.2 Debug Information

  • Page Generation 0.43112 seconds
  • Memory Usage 2,891KB
  • Queries Executed 15 (?)
More Information
Template Usage (33):
  • (1)SHOWTHREAD
  • (1)ad_footer_end
  • (1)ad_footer_start
  • (1)ad_global_above_footer
  • (1)ad_global_below_navbar
  • (1)ad_global_header1
  • (1)ad_global_header2
  • (1)ad_navbar_below
  • (1)ad_showthread_firstpost_sig
  • (1)ad_showthread_firstpost_start
  • (1)ad_thread_first_post_content
  • (1)ad_thread_last_post_content
  • (2)bbcode_code
  • (1)footer
  • (1)forumjump
  • (1)forumrules
  • (1)gobutton
  • (1)header
  • (1)headinclude
  • (1)headinclude_bottom
  • (6)memberaction_dropdown
  • (1)navbar
  • (4)navbar_link
  • (1)navbar_moderation
  • (1)navbar_noticebit
  • (1)navbar_tabs
  • (2)option
  • (6)postbit
  • (6)postbit_onlinestatus
  • (6)postbit_wrapper
  • (1)spacer_close
  • (1)spacer_open
  • (1)tagbit_wrapper 

Phrase Groups Available (6):
  • global
  • inlinemod
  • postbit
  • posting
  • reputationlevel
  • showthread
Included Files (26):
  • ./showthread.php
  • ./global.php
  • ./includes/class_bootstrap.php
  • ./includes/init.php
  • ./includes/class_core.php
  • ./includes/config.php
  • ./includes/functions.php
  • ./includes/functions_navigation.php
  • ./includes/class_friendly_url.php
  • ./includes/class_hook.php
  • ./includes/class_bootstrap_framework.php
  • ./vb/vb.php
  • ./vb/phrase.php
  • ./includes/functions_facebook.php
  • ./includes/functions_calendar.php
  • ./includes/functions_bigthree.php
  • ./includes/class_postbit.php
  • ./includes/class_bbcode.php
  • ./includes/functions_reputation.php
  • ./includes/functions_notice.php
  • ./packages/vbattach/attach.php
  • ./vb/types.php
  • ./vb/cache.php
  • ./vb/cache/db.php
  • ./vb/cache/observer/db.php
  • ./vb/cache/observer.php 

Hooks Called (70):
  • init_startup
  • friendlyurl_resolve_class
  • init_startup_session_setup_start
  • database_pre_fetch_array
  • database_post_fetch_array
  • init_startup_session_setup_complete
  • global_bootstrap_init_start
  • global_bootstrap_init_complete
  • cache_permissions
  • fetch_threadinfo_query
  • fetch_threadinfo
  • fetch_foruminfo
  • load_show_variables
  • load_forum_show_variables
  • global_state_check
  • global_bootstrap_complete
  • global_start
  • style_fetch
  • global_setup_complete
  • showthread_start
  • showthread_getinfo
  • strip_bbcode
  • friendlyurl_clean_fragment
  • friendlyurl_geturl
  • forumjump
  • cache_templates
  • cache_templates_process
  • template_register_var
  • template_render_output
  • fetch_template_start
  • fetch_template_complete
  • parse_templates
  • fetch_musername
  • notices_check_start
  • notices_noticebit
  • process_templates_complete
  • friendlyurl_redirect_canonical
  • showthread_post_start
  • showthread_query_postids
  • showthread_query
  • bbcode_fetch_tags
  • bbcode_create
  • showthread_postbit_create
  • postbit_factory
  • postbit_display_start
  • postbit_imicons
  • bbcode_parse_start
  • bbcode_parse_complete_precache
  • bbcode_parse_complete
  • postbit_display_complete
  • memberaction_dropdown
  • tag_fetchbit_complete
  • forumrules
  • navbits
  • navbits_complete
  • build_navigation_data
  • build_navigation_array
  • check_navigation_permission
  • process_navigation_links_start
  • process_navigation_links_complete
  • set_navigation_menu_element
  • build_navigation_menudata
  • build_navigation_listdata
  • build_navigation_list
  • set_navigation_tab_main
  • set_navigation_tab_fallback
  • navigation_tab_complete
  • fb_like_button
  • showthread_complete
  • page_templates