Front Panel objects do not stay in place after saving, closing, and reopening the VI.

[Miguel1021]

I have been working with a couple of versions of a main VI. The original VI was given to me so that I could add additional functionalities to it. I had been designing the front panel of the latest version of the VI on a Dell laptop running Windows 7 and LabView 2011 SP1 using a monitor with a resolution of 1920x1080. My booleans, numerics, and plots on the front panel had always stayed in place after saving, closing, and reopening the VI. Once in the field, I connected my laptop to a cRIO9073 and used my laptop screen with a resolution of 1366x768 to operate the VI. I made some changes to the VI, saved it, and reopened it. This time I noticed that the front panel objects had become overlapped, resized, and generally rearranged. I tried fixing the objects but I noticed that they reverted back to the incorrect positions after saving and reopening the VI. I was successful in keeping the objects in position a couple of times, but when I would open the VI at a later time, the objects were again rearranged. This is happening on both my monitor and laptop screen. The original version of the VI, however, does not behave this way and I have opened it on both my monitor and laptop screen. In this version, the front panel objects always stay in place. Both VI's have the same window size properties. Could I have corrupted the latest version of my VI somehow? Below are screenshots of the front panels of both VI's.

[0utlaw]

Hello Miguel,

You've likely already checked this, but do you have a non-default setting for the Window Position VI Property.  I've seen similar behavior in VIs set to Maximize on different screen sizes. 

Regards,

[Miguel1021]

Hello Tom,

In the VI Properties under Window Size, my Minimum Panel Size is Width = 0, Height = 0. The "Maintain proportions of window..." and "Scale all objects..." boxes are not checked. Under Window Run-Time Position, I have the position set to Unchanged. Is this what you mean?

Regards,

Miguel M.

[0utlaw]

Yes, I was referring to the Position property.

That is quite odd- could you provide a screen capture of what the updated UI is supposed to look like?  It appears a number of things have changed. 

It's possible that something is awry with the tab control or the front panel as a whole, however it's more likely that a setting has changed that's not obvious.

If the front panel is copied and pasted into a new VI and saved & re-opened, do you see the same rearrangement?

Regards,

[Miguel1021]

Tom,

Below is a picture of the updated front panel. I have noticed, now, that my front panel objects rearrange only when I open the VI on my laptop after designing on my monitor. When I go back to my monitor they are still scrambled. I copied the front panel to a new VI and opened this new VI on both my monitor and laptop. There was no rearrangement. Could I have done something programmatically to my front panel objects. I don't think I have.

[K_Joy]

Hi Miguel,

It is possible to programmatically set or change the position of front panel objects. (for example: http://digital.ni.com/public.nsf/allkb/4D0DA06B43195B3F862572F3000AF2D3?OpenDocument) However, if you haven’t intentionally done that, it seems unlikely that it is the problem.

Have you tried copying the entire block diagram in to a new VI to see if the problem persists? While it is unlikely, you are right that it is possible for VIs to become corrupted. I’ve never heard of a situation like this except in the situation where the settings Tom had you check have been changed. Here is some information about those settings:

http://digital.ni.com/public.nsf/allkb/7567EF257B9CFDF986256F630073228F?OpenDocument

Since there was no rearrangement when you copied the front panel to a new VI, you might try copying the block diagram a little bit at a time to see if there is some particular part of it that creates the problem somehow.

K. Johnson

[Ranjeet_Singh]

VI is adjusting itself based on monitor size. This is always the case. Make sure when you create your installer then in VI properties select window size tab as per your requirement.