Hello,

I am working on a tool that should load a set of selected files from a group folder. The interface should only display the files in the selected group folder.

I tried to use the code below to read the files as options from an external .xml file in the tool-data directory based on the group selected in the first step but I run into 2 problems:

- How can I pass the information from the parameter “group” to “from_file”.

- Even if I hardcode the xml file to be read from tool-data, the options do not show up. In the tool annotation profiler certain meta data of the input dataset are required for the options to be displayed but in my case I do not start without input dataset.

<inputs>

     <page>

        <param name="group" type="select" label="Group" help="Select your group" >

                <option value="group1_files.xml">group1</option>

                <option value="group2_files.xml">group2</option>

        </param>

    </page>

    <page>

                <param name="selectedfiles" type="drill_down" display="checkbox" hierarchy="recurse" multiple="true"  label="Choose files to upload" help=" "  from_file="${group}"/>

    </page>  

  </inputs>

Thanks for your help in advance

Tim