# View related question

**URL:** <https://www.ruby-forum.com/t/view-related-question/162372>\
**Category:** Rails\
**Created:** [March 9, 2009, 10:29am UTC](https://www.ruby-forum.com/t/view-related-question/162372 "2009-03-09T10:29:53Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![sudhi](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/dbc845/32.png) [@sudhi](https://www.ruby-forum.com/u/sudhi)\
**Post date:** [March 9, 2009, 10:29am UTC](https://www.ruby-forum.com/t/view-related-question/162372/1 "2009-03-09T10:29:53Z")

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Hi,

I intend to have a view that has 3 boxes with the following  
features

1. One selection change in 1st select box, the second select box has to  
get updated.

2. On selection of 2nd select box, the 3rd select box has to be updated

3. I tried using select\_tag and observe\_field as mentioned in  
[http://brentrubyrails.blogspot.com/2008/02/how-to-dynamically-update-contents-of.html](http://brentrubyrails.blogspot.com/2008/02/how-to-dynamically-update-contents-of.html)  
but the problem is that with select\_tag I cannot configure the   
to be fixed select box. ( I want a fixed select box of size 3)

4. Also my observe field does not work in this case don’t know for what  
reason.

5. Also is there any other easy way to get this implemented

ALl I need is to display this

Class A has Methods A1,B1,C1 and when A1 is clicked I need to display  
A1’s parameters …

All this information is stoed in Database and I need to pick these and  
display

Regards,  
Sudhi