Opening different files within the same loop

Question

Hi folks,
I am currently trying to automate a testing procedure using LabVIEW
that requires the user to select the test from a drop down menu (Ring)
and then clicks a button to start the test. When the button is pressed
an 'open file' window appears asking for a name to save the file as.
This all works fine the first time it is run, but i need to be able to
stop the current test, select a new one, and then choose a different
filename to save it as, without having to restart the program.
I am currently using a timed loop (as the test is time specific) and
case statements for each individual test routine. I can only think of 2
ways to implement this, the first works only once (asking for a
fliename when the program is first run), the second repeatedly asks for
the filename each time the loop frame executes.
So the process is: select test - click button - chose filename - stop
test - select new test - click button - choose new filename -
etc.......
Thanks in advance,
Darren.

Answer 1

There can be many ways to do this
One way would be, to keep the file read operation inside a seperate case stucture ( inside the while loop itself)
and use a boolean switch ( mechanical action>> Latch) and read a new file at each click of this button
look at attached VI, probably you can build on its logic
Attachments:
file read.vi ‏86 KB