Rate this code.. related to file IO

Question

I am a newbie to Labview... kindly say possible corrections in this
This VI is an application that is capable of Sync the files between Source path and Target Path.
The following Features are necessary,
 Upon pressing check button the s/w should do the steps 1,2,3.
  1) It should compare the files in the source path (Recursively) with the Target Path Recursively.
  2) It should List all the Missing files (in the target path ).
  3) It should list all the Modified files (based on file properties size and date modified.
  4) Upon pressing copy the software should copy the missing files to the target location
  5) upon pressing update the software should update the modified files only(Replace the old files in the
 target location by the new version from source).
  6) upon pressing Sync it has to do both steps 4 and 5.
  7) Exit - Exits the application.
P.S: In simple words, Assume that you are developing an Application that sync the songs to a MP3 player.
Make all other Assumptions and develop the application.
Attachments:
Jason2.zip ‏55 KB

Answer 1

You already got two sets of excellent answers, so here are some cleanup operations for a few more issues I noticed:
Some of your buttons overlap on the FP. This causes possibly performance problems redrawing the panel. (check,sync)
You don't need a timeout case. It does nothing once you fix point (3) below.
The terminals of latch action booleans belong inside their respective event structures. This way they reset to FALSE when the event fires (In your case, they get read before the event fires and thus don't reset until after the action occured and the timeout event spins the idle loop once more.
If you would replace the big case structure with an event structure, you don't need any state information
Don't use hidden indocators ("Boolean") to keep state information. A shift register will do.
You don't need to check for "=exit", just read the exit button.
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