Const from a 'tab control typedef' crashes lv6.1
LabView crashes with 'failure: datamgr.cpp line 2854' if I do the following:
1/ Make typedef of a TAB Control
2/ Place this typedef control on front panel
3/ create Const on diagram (also depends on typedef)
4/ change in the typedef the 'tab control' (change a page name)
saving this new typedef vi will crash LabView
(as if the const can not be updated correctly)
Seen on Win98 and Win2000. LabView 6.1
(Labview 6.0 doesn't allow "custimise control" with TAB controls, so here no errors)
Verified on XP:
Failure : "datamgr.cpp", line 2854
Have you reported this to NI, or checked out www.ni.com/failure ?
Copyright © 2004-2015 Christopher G. Relf. Some Rights Reserved. This posting is licensed under a Creative Commons Attribution 2.5 License.
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If you can post a simple example VI that shows this behavior I would be glad to take a look at to see what is going on and if this is a bug. If it is a bug I will make a Corrective Action Request (CAR) so that this can be fixed in future iterations of LabVIEW. The post I made earlier, that suggested this may not be a bug, referenced the help documentation for the Rearrange Pages Method. This document is linked below and states that the method is not available for Strict Type Definitions.
http://zone.ni.com/reference/en-XX/help/371361K-01/lvscript/tabcontrol_rearrange_pages/
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Hello,
I am trying to get a good resolution report. I got use export image to EMF file so the graphs look very good resolution. When I appended the image control like png it looked poor quality. Now is ok, now I export image of graphs to emf and then use 'append image to report' using the path of file emf.
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I attached pdf file. IT shows the tab control with append control to report (it is like capture in png file) and one graph append control to report png and emf file of another graph and use the path to input in word report. You can see the diference.
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Report22.pdf 212 KBHi Mike,
Thanks for your reply!.
Well, it was only one example. Check the attached file. It works ok. I split in dataset of 8sec and save the emf files.
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I have another question. I used transparent graph and it works ok. I remove all the scales Y values or labels and customized the graph adding one horinzontal line for X scale (like capture), but in the file emf saved didnt appear. Do you know why?.
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Attachments:
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Hi Allen,
I am currently testing Requirements Gateway. As it seems it does not find any controls placed on a tab control to see if it is covered or not.
Is there any reason not searching for controls placed on tab controls?
We have VIs iterating over complex Front Panel structures to find all controls. Maybe we can add this functionality to NI RG LabVIEW interface.
Is there anyone can help in this?
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I would like to update a tab control, visible page, based on the current state, using the StateChart Module. I first tried creating a reference to the tab control and passing that to a property node within the state in the statechart. However when I drop the reference in the state it pulls every control associated with the tab control into the state, no good. I tried with a property node with same results. My next thought was to use a shared variable, but I dont believe that I can have a shared variable with enum data type. Anyone have a solution for this problem? It seems like someone else must have encountered the same issue at some point. Any thoughts will be appreciated.
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Message Edited by jmcbee on 05-15-2008 10:16 AM
CLA, CLED, CTD,CPI, LabVIEW Champion
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Don't forget Kudos for Good Answers, and Mark a solution if your problem is solved.
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How to save values of a page from tab control??
Good morning!
I have a question about saving the data of one page of the tab control.
In my case, alarms (boolean buttons) can be activated, it will appear in a page called HISTORICO (Date // Time // Room), but when I change to another page and back again to the HISTORICO page, the table back for null value.
Here's some screenshots of my program.
If anyone can help, I will be grateful.
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Tab control shows wrong display for selected tab
My computer crashed when I tried to post this earlier, so I apologize if the first post actually shows up.
I have seen this for years so it is nothing new, but I don't remember seeing it in any release notes (sorry if I missed it).
Upon loading the .vi (or as an executable), the .vi shows the wrong page for the selected tab. After selecting a different tab, the control works fine. Also, if you create a property node to read the tab value, it matches the displayed page....just the selected tab seems to be incorrect.
A work around is to select the default tab before saving the .vi, but why is this happening in the first place?
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tab_example.vi 24 KBHi Stephen,
The erroneous tab display is something I see on most of not all of my code that uses a tab control (each is a typedef).
What change would I make the the typedef? If I disconnect the tab from the typedef then I will loose the advantages of using the typederf...I will stick with the workaround like I have for the past 3+ years.
Isn't this a LabVIEW bug since the displayed tab is not equal to the value read from the control? I have not tried it on this example I posted but in the past, writing to the control does not fix the displayed tab (writing the control may not work since I wrote the same value that LabVIEW thinks is the current value, but the displayed!=actual).
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I found that if I modify the TEST_UUTS string in ModelStrings.ini, I can change the text displayed in my entry point button.
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Similarly, I made changes to UIControlOperatorInterfaceStrings.ini to change what shows up in the tabs for my Top-Level VI in the TestStand 3.5 Operator Interface.
[TSUI_OI_MAIN_PANEL]
EXECUTION = "Test Execution"
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Now for my questions - one specific, one general
1) If I add a page (tab) to my tab control (say Quick BIT), I was told I could just create a contant in CustomStrings.ini and TestStand would grab the text out of that file.
[TSUI_OI_MAIN_PANEL]
QUICK_BIT = "Quick BIT"
How/where does it do that? I assume this constant (QUICK_BIT) would have to be unique and it would have to be specified in one of the properties dialog boxes somewhere?
2) In general, where does TestStand use these contants (say, for example, the one for TEST_UUTS)?Hi,
You have to call the TestStand - localize Front Panel.vi, which is found in the TestStand Palette in your LabVIEW. You need to provide the Engine reference which you can obtain from IAppllicationMgr.GetEngine and also a string containing the section name found in your CustomStrings.ini
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I have a program with 3 tabs using tab control. The first tab is a login
screen (because this will be used for remote fron panel use), the next is a
configuration tab and the last is the execution.
The login tab is an event structure waiting for a value changed on the
"login" bool button.
The config tab is a while loop that updates different settings which are
later being read from the execution tab and is also used for running small
test executions from within the config tab.
The execution tab is a while loop that reads settings from the config tab
controls and actually manipulates I/O ports.
So far so good. Now, when the VI is started, I switch to the login tab and
disable the others by use of a property node and references. Works well.
Once the user is l
ogged in, I disable the login tab and enable the others
and jump to the last tab. Works OK as well.
Problem: If I start the VI when any other tab than the login tab is in
"focus", that tab will continue running and you can never log in because the
login tab will never get "its turn" even though it will actually disable the
other tabs and put the login tab in focus. Also, I would like for the tabs
to stop running when I switch to another tab and continue when I switch back
to them, thereby only having one while loop running at a time.
Right now, if I stop the while loop in one of the tabs the whole program
stops.
Can anyone help me in the right direction?
TIA,
- SorenI never thought of the tab control as an actual control, but more of a
display device. Anyway, you can make a local variable from the tab and
write a constant to it to switch between tabs.
"Soren Maigaard" wrote in message
news:ap284d$c22$[email protected]..
> I have a program with 3 tabs using tab control. The first tab is a login
> screen (because this will be used for remote fron panel use), the next is
a
> configuration tab and the last is the execution.
> The login tab is an event structure waiting for a value changed on the
> "login" bool button.
> The config tab is a while loop that updates different settings which are
> later being read from the execution tab and is also used for running small
> test executions from within the co
nfig tab.
> The execution tab is a while loop that reads settings from the config tab
> controls and actually manipulates I/O ports.
>
> So far so good. Now, when the VI is started, I switch to the login tab and
> disable the others by use of a property node and references. Works well.
> Once the user is logged in, I disable the login tab and enable the others
> and jump to the last tab. Works OK as well.
>
> Problem: If I start the VI when any other tab than the login tab is in
> "focus", that tab will continue running and you can never log in because
the
> login tab will never get "its turn" even though it will actually disable
the
> other tabs and put the login tab in focus. Also, I would like for the tabs
> to stop running when I switch to another tab and continue when I switch
back
> to them, thereby only having one while loop running at a time.
> Right now, if I stop the while loop in one of the tabs the whole program
> stops.
>
> Can anyone help me in the right direction?
>
> TI
A,
>
> - Soren
>
>
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