I figured out the optional part (RTFM to myself) <param name="factorSheet" type="data" label="Factor Sheet" help="Select a factor sheet (if any)." optional="true" /> On Fri, Aug 5, 2016 at 6:54 PM, Ryan G <ngsbioinformatics@gmail.com> wrote:
Hi all - I have a custom tool that can optionally take a file as input.
Right now, users have to upload the file into their history, then select the file when running the tool.
Is there a way to let the user select a file local on their computer as input to the tool, then when run, the file is uploaded?
And (second question), how can I make this field optional, such that the user does not need to provide a file at all when running the tool?
Right now, my input field is:
<param name="factorSheet" type="data" label="Factor Sheet" help="Select a factor sheet (if any)." />