Shutdown problem reference VI in nested secondary, causing the encountered error 'end of file'.

Hello

I'm relatively new to LabVIEW using LabVIEW 8.0 and am having a strange problem.  My program is such that I have a front panel (A), which opens a secondary (B) by a remote control.  This secondary (B) has a button that, when pressed, runs subvi C AND displays a subgroup of experts containing graphical real-time C.vi.  'C', my code uses a reading of file extent express VI to read a text file in a table that is essential to the vi and in the iterations unique VI there is no problem whatsoever, HOWEVER if the C.vi is not properly closed and he's trying to run again, you receive an "end of file" error encountered.  When I run just B.vi and C.vi access like that, I coded "close after call ' and wired this reference to a narrow File.vi VI.  It works as I can repeatedly run C.vi, and no error occurs. However, when I start at A.i and access the secondary B.vi C.vi, I can run successfully the first time, but if I try to run the second time, I get the error "end of file encountered.  I really don't know what the right course of action here is B-> C works fine, but A-> B-> C is not working even if A is not having a single reference to C.vi whatsoever.

Thank you for your time.

Well, it was a bit confusing to read, but my guess is that the file pointer is remaining at the end of the file if a kind of close file does not correctly when B is executed inside the A. You said when he is not stopped correctly in this case, then all bets are off if the file is not closed. My suggestion is to ensure the folder is closed correctly (make sure you're not abandonment of the VI, but instead they sent a release message) and if you are not reading files measure but rather use the IO file screws, there is a VI to set the file position. You can set it to 'start' each time before play you.

It's just a guess, you can post your VI if you can.

Tags: NI Software

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