Question

I want to disable textbox depending on option selected in listbox in rails 3

I have the code for select and text box

 <%= f.select "type_id", options_from_collection_for_select(@types, "type_id","name")%>
 <%= f.text_field :zonetype  %>

• It displays the list of types

• I want to do is if I select no type the text box following the select must be disabled

How to do this please help me….

Answer 1

You will need to use jQuery or similar to find the change event of your select box, something like:

$('selector').on('change', function(){ do-stuff });

The “selector” would be a jQuery selector that finds your select list (probably by ID).

The “do-stuff” would be setting the text field to disabled, this would look something like:

$('selector').prop("disabled", true);

This time the “selector” would be a jQuery selector that finds your text box (probably by ID).