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I know this is a repeated question, but I cannot make it run. I tried all the solutions I found here in SO and googling...

I have this radio button form in my page. What I want is that when the user selects the 'only one attendee' option a text field appears ONLY for this option. If the user selects another one it dissapears.

Once the user selects only one option, the text box appears.

I've been trying doing with javascript. I use this piece of code

<script>
    $(document).ready(function()
        $("#send_to_one").hide();
        $("input:radio[name="people"]").change(function(){  
          if(this.checked){
            if(this.value =='one'){
              $("#send_to_one").show()
            }else{
              $("#send_to_one").hide();
            }
         }
    }
  });
</script>

The form's code is

  <div id="send_to">
    <input type="radio" id="send_poll" name="people" value="all" checked="checked">all the attendees</br>      
    <input type="radio" id="send_poll" name="people" value="one" >only one attendee<br/>
    <div id="send_to_one">
      <label>Write the attendee's name: </label><input type="text" id="attendeename"><br/><br/>
    </div>
    <input type="radio" id="send_poll" name="people" value="group">a group of attendees</br>              
  </div>

I've checked that the javascript files are loaded. I also tried putting the javascript code inside the html.erb file where the form is, in a separated .js file and in application.htm.erb's <head></head> section, but no luck. Where do I need to put each part of code exactly in order to work?

Using Rails 3.0.4, Ruby 1.8.9. I'm also using JQuery

I know this is a repeated question, but I cannot make it run. I tried all the solutions I found here in SO and googling...

I have this radio button form in my page. What I want is that when the user selects the 'only one attendee' option a text field appears ONLY for this option. If the user selects another one it dissapears.

Once the user selects only one option, the text box appears.

I've been trying doing with javascript. I use this piece of code

<script>
    $(document).ready(function()
        $("#send_to_one").hide();
        $("input:radio[name="people"]").change(function(){  
          if(this.checked){
            if(this.value =='one'){
              $("#send_to_one").show()
            }else{
              $("#send_to_one").hide();
            }
         }
    }
  });
</script>

The form's code is

  <div id="send_to">
    <input type="radio" id="send_poll" name="people" value="all" checked="checked">all the attendees</br>      
    <input type="radio" id="send_poll" name="people" value="one" >only one attendee<br/>
    <div id="send_to_one">
      <label>Write the attendee's name: </label><input type="text" id="attendeename"><br/><br/>
    </div>
    <input type="radio" id="send_poll" name="people" value="group">a group of attendees</br>              
  </div>

I've checked that the javascript files are loaded. I also tried putting the javascript code inside the html.erb file where the form is, in a separated .js file and in application.htm.erb's <head></head> section, but no luck. Where do I need to put each part of code exactly in order to work?

Using Rails 3.0.4, Ruby 1.8.9. I'm also using JQuery

  • javascript
  • jquery
  • ruby-on-rails-3
Share edited Jun 20, 2020 at 9:12 CommunityBot 11 silver badge asked Mar 25, 2013 at 8:44 itzikiitziki 2953 silver badges20 bronze badges 2
  • (OT) </br> != <br /> and <input> != <input /> – Roko C. Buljan Commented Mar 25, 2013 at 8:46
  • off the top of my head: $("input:radio[name="people"]"). should be $("input:radio[name='people']"). – DVM Commented Mar 25, 2013 at 8:46
Add a ment  | 

2 Answers 2

Reset to default 4

LIVE DEMO

HTML:

<div id="send_to">
  <input type="radio" id="send_poll" name="people" value="all" checked="checked" />all the attendees<br/>      
  <input type="radio" id="send_poll" name="people" value="one" />only one attendee<br/>
  <div id="send_to_one">
      <label>Write the attendee's name: </label><input type="text" id="attendeename" /><br/><br/>
  </div>
  <input type="radio" id="send_poll" name="people" value="group" />a group of attendees<br/>              
</div>

jQ:

$(document).ready(function(){

    $("#send_to_one").hide();

    $("input:radio[name='people']").change(function(){  

            if(this.value == 'one' && this.checked){
              $("#send_to_one").show();
            }else{
              $("#send_to_one").hide();
            }

    });

});

$(document).ready(function() {
    $("#send_to_one").hide();
    $("input:radio[name='people']").change(function(){  
         if(this.checked){
            if(this.value =='one'){
              $("#send_to_one").show()
            }else{
              $("#send_to_one").hide();
            }
         } 
    });
});

Your code was right, but a few missing braces, brackets, and unescaped quotes. Are you using any form of smart javascript editor? Because you really should...

http://jsfiddle/7yt2A/

本文标签： javascriptShowhide textfile depending on radio buttons39 selectionStack Overflow

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