Opening two attachments

Question

Can we compare two attachments in the same instance. For Example there are two attchments we are getting as input in the same instance.Now if we want to compare the two attachments is it possible .Please let me know how can that be done.

Answer 1

Hi,
Here's one approach to comparing the attachments with one another. It's a bit of overkill for your needs (it compares every attachment with every other attachment that the instance has), but hope it helps.
Please don't put the "display" statements in production. They're just there to provide a simple example.
comparisonResults as String
if length(attachments) > 1 then
     // are any the same?
     for i in 0..(attachments.length() - 1) do
          for j in 0..(attachments.length() - 1) do
             // do not compare it with itself
             if j != i then
                logMessage "Comparing " + attachments.fileName + " with " + attachments[i].fileName
          using severity = DEBUG
          if String(binary : attachments[i].contents, encoding : "ascii") = String(binary : attachments[j].contents, encoding : "ascii") then
          logMessage "The files " + attachments[i].fileName + " and " + attachments[i].fileName + " match"
          using severity = DEBUG
          comparisonResults = comparisonResults + attachments[i].fileName + " is the same as " + attachments[j].fileName + "\n"
          else
          //display String(binary : attachments[j].contents, encoding : "ascii") + "\n" + String(binary : attachments[i].contents, encoding : "ascii")
          end
          end
          end
     end
     display comparisonResults
else
display "Please add some attachments so you can compare them"
action = REPEAT
endDan