Shift regsiter pass file reference problem

Hi, I met some problem when I use shift register to store file reference, please refer to attachement.
I want to implent the function that every hour a new file would be create, and close the old file. but the close file.vi reported error message, said error source is can't close file. other parts in the diagarm works well.
Solved!
Go to Solution.
Attachments:
chkDatalogDir_drv.vi ‏23 KB

Are you testing this VI by itself or as a called subvi? LabVIEW will automatically close the file reference once the top level caller stops running, even if you don't close it in code. The ref info will remain in the shift register but it's no longer valid. This means it passes the not a ref test but Close File can't use it. I threw a loop around your code to keep it running(as if it were a subvi) and everything worked.
--Using LV8.2, 8.6, 2009, 2012--

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Load_Directory_of_vi's.vi ‏57 KB

Several problems with your code:
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Attachments:
Stikstofdroger.vi ‏50 KB

I'm wondering about that this works at your development machine.
You should think about attending a LabVIEW Style Guidline and LabVIEW Performance class.
But to fix you issues regarding the tdms file path you have to change a few things:
1. There is only a valid path when "Datalog OFF/ON" is set to true before you start the vi. You should change this by creating a new event case for the "Datalog OFF/ON" where the user then is able to start datalogging when the vi is allready running.
2. When "Show Measurements" is set to False you write an emtpy path constant into the shift register. Why? Either you wire the path from the left tunnel to the right or you think about if it is even necessary to wire the path through the case structure at all.
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Attachments:
PROCESS SH TO DLOG.vi ‏84 KB

The problem is that you are creating a different type of datalog file in cases 2 and 3 than you are in cases 0 and 1.
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Message Edited by Ed Dickens on 03-19-2007 11:39 AM
Ed Dickens - Certified LabVIEW Architect - DISTek Integration, Inc. - NI Certified Alliance Partner
Using the Abort button to stop your VI is like using a tree to stop your car. It works, but there may be consequences.

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I have the detail in the attached Outlook format file.
Attachments:
CPP DLL Integration with Teststand.docx ‏120 KB

If you don't know what a method is, you're going to have a number of problems down the road... A method is a function. It's a member of a class. It sounds like you may need to go through some .NET tutorials to understand the terminology.
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Message Edited by smercurio_fc on 08-15-2008 02:26 PM

Error when opening itunes : iTunes has stopped working ''A problem caused the program to stop working correctly''. When I repaired damaged files the problem still exists and also after uninstalling and redownloading and installing itunes. I have windows 8

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hi guys let me close this thread:
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Thanks again.
flat

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Hello Forum Users…
For those of you who have run into the upload roadblock, getting an error message similar to this:
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Following is a "specific" fix, but the idea of the fix will help you with your specifics too.
I tried for 17 days to upload a book that looked and worked perfectly in iPAD via Preview.
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See Screenshots from InDesign:
Okay... Couldn't add it but it is a Warning Box that says there is overset text. (Characters which exceed the text box.)
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Where I found + signs, I simply deleted some carriage returns from the iBOOK file... (please note… carriage returns and literally empty spaces that caused the overset text) and then erased all previous copies of the Music to Picture Book on my hard drive, iTUNES and iPAD.
The result? A "text-book" upload with no snags! As my Son would say… "Victory!"
So, first make sure that you are using only PNGs, Jpegs and Movie files to iBook Specs. Then... make sure there are no overset text boxes, which you must do manually.
Enjoy & Godspeed!
Steve
Stephen Melillo, Composer
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Java Reference Problem

We are using a Java JLabel class for rendering the cell of a Java JTable.
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DemoPassbyRefWriting, and posting, a class called 'DemoPassbyRef' in Java is a complete waste of time. There is no pass by reference in Java.
However your problem is simply that you have added an object to a collection and then cleared the object, so it is clear when accessed via the collection too. It's the same object. Adding to a collection doesn't perform any copy step. If you don't want the collection item cleared, either don't clear it or do a copy when you add it to the collection. In this particular case clearing paramListTemp is completely pointless anyway, as nobody else uses it by that name.
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Hi, I was wondering if someone could help me.
It seems like a very simple problem but I cant for the life
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I have created a Custom Component that extends from the
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clock face etc….
I want to use this component multiple times within my
application – however feed it different data so for example
each “rev counter” on the page will be displaying
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Jon.

Jon,
jmryan's suggestion is the preferred way to go. This way you
can use the simple MXML syntax that you described in your post.
If your custom component is defined in ActionScript, you can
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when the values are passed in from the tag (they are set *after*
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add [Bindable] to your public field and then bind directly to it in
the custom component's MXML code.
- Peter

Shift regsiter pass file reference problem

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