Can't edit block diagram.

[jvh75021]

I had been running TestStand and had finished the test and stopped TS. I needed to edit a subVI, one that is several layers deep in the calling sequence. When I try to edit it the white hand appears and I cannot make changes. So I close all sequence files as that usually frees the VI. No good. Close TS, no good. Close the VI and re-open it and still the White Hand of Saruman thwarts me. I tried to close LV and finally had to use Task Manager to kill it. Why does this happen and what should I do different to avoid it? Using version 9.0.1.

Thanks,

jvh

[smercurio_fc]

Perhaps the VI is in run mode. Use Control-M to switch between edit mode and run mode.

Perhaps the VI is read-only and you have the option set in your LabVIEW preferences to treat read-only VIs as locked.

[Norbert_B]

jvh,

Ctrl+m should do the trick.

hope this helps,

Norbert

EDIT:

Possible reason for this is often reentrant setting of the VI and viewing a clone. This is indicated by (clone<clonenumber>) in the VI name display in the windowtitle.

[jvh75021]

Thanks, but ctrl-m has no effect.

[Ben]

ctrl period ?

If it is set to run when opened.

Post an image, it may inspire us.

Ben

[tbob]

In TestStand, click on the menu bar, File - Unload All Modules.  You should now be able to edit the block diagram.

[Norbert_B]

tbob,

since he said that he closed TS, i doubt that this is the solution. Nevertheless, it is a valid point (and good one to know for everyone working with TS) and the first one i thought of too.

So either the OP encountered a bug (so question: how often did this occur?) which presumably was some kind of corruption occuring a single time it seems, or there has to be some other reasons.

I had a similar issue the last couple of days where i wanted to edit a subVI of a X-control and it was not possible to do this until i unloaded the VI which used the X-control. And yes, a surely unlocked the X-control for editing before trying to edit that subVI.......

hope this helps,

Norbert

[Harlequinade]

In the FPGA programming it sometimes happens that if you open a VI by double clicking it opens a clone, which is blocked. Try opening the VI from your project explorer.