Dear list,

For a tool that I'm writing I would like to show or hide certain parameters 
based on what the user entered in other parameters. Normally I would use the 
conditional tag combined with a select menu which works fine in most cases.

However, I also use a selectbox with the following settings:
  <param name="report_options" type="select" multiple="True" 
display="checkboxes" label=".." />

As far as I'm aware, it is impossible to use things like 'refresh_on_change' or 
making a conditional with it since multiple options can be selected.

Optimally what I would like to do is something like this (I know the syntax is 
#if "option1" in $report_options
        #<param name="new_option1" type="text" />
#else if "option2" in $report_options
        #<param name="new_option2" type="integer" />
#end if

But I tested it and the if/else stuff is ignored by Galaxy, is this due to the 
fact that the XML code is evaluated first and the Cheetah template only when 
the 'execute' button is pressed?

Another few small questions:
- When using the (deprecated) <page> tag, can I get a 'Previous' button?
- Where can I find instructions on the alternative of the <page> tag 

Thanks in advance.

Kind regards,


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