Read Multiple Selections from a Select Control


File: public\input.html

<html>
  <head>
    <title>Using Select Controls</title>
  </head>
  <body>
    <h1>Working With Select Controls</h1>
    This Ruby on Rails application lets you read data from select controls.
    <br>
    <form action = "/hello/there">
      Select your new car's color.
      <br>
      <select name="select1[]" multiple size="3">
        <option value="red">red
        <option value="green">green
        <option value="blue">blue
      </select>
      <br>
      <br>
      <input type="submit"/>
    </form>
  </body>
</html>

File: app\controllers\hello_controller.rb

class HelloController < ApplicationController
  def there
    @data = params[:select1]
  end
end


File: app\views\hello\there.rhtml

<html>
  <head>
    <title>Reading data from select controls</title>
  </head>
  <body>
    <h1>Reading data from select controls</h1>
    This Ruby on Rails application reads data from select controls.
    <br>
    <br>
    You selected <% for data in @data %>
    <%= data %>
    <% end %>
    <br>
    <br>
  </body>
</html>


Start the WEBrick server: ruby script/server
Navigate to http://localhost:3000/input.html.

readMultipleSelections.zip( 91 k)

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