Type def boolean button.

hi, i'm korean.
my english is it' too bad. that why i'm sorry.
first i wanna make type def boolean button.
it's not problem. but make triangle shape.
happen problem. like that
red box is notihing. but if i click there, that is change to true or false.
i don't know how to make flexible area setting.
plz help me
GOOD
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Here is one way to do what you are asking: link
This thread has a VI (post # 12) that uses triangle butons that may be a good start for you.

Similar Messages

What is the difference between "System" buttons and boolean buttons?

I'm writing a VI with an event structure that allows me to push different buttons to control external instruments, but I found two types of buttons worked: "System" buttons and "Boolean" buttons. On the surface, the functionality seems the same: I can write the VI so that either one works, and they work in the same way, but which one is right?
Here is a little more info on what I'm doing. I have a case structure that has one "timeout" case, which just measures the position of a movable stage. Another case, if a "system"-type button is pressed, moves the stage to an absolute position. Another case activated by a "boolean"-type button moves the stage to the zero point. I could switch these and it would still work, but I don't understand how the buttons are different.
Also, right now I'm using the "run continuously" function so that the loop just repeats. Is this the right way to do it? I could put everything inside a loop, and make my own stop button for it. Would that be better? Worse? --> I think I found the answer to my own question: run continuously will stop and start the code at each instance, so a while loop will be better because it doesn't start and stop repeatedly. (True?)
Thanks,
Karl
Message Edited by Karl T. on 03-31-2008 05:43 PM

Karl,
You never want to design your program to have to use the run continuously button. It is more for debugging than anything else. Using a while loop with your own stop button is the preferred method of doing things.
The System, 3-D, and Classic Booleans all basically work the same. The appearance is different. The System buttons look like your OS buttons that you see on all your other programs. The 3-D were introduced in LV6 and remain standard across different OS's and are not affected by System color changes or System theme changes. The classics behave similarly to the 3-D, but they are the older controls that existed prior to LV6 and have been kept for legacy's sake.
There are arguments for using system controls vs. 3-D controls (I don't think most people use the classic controls much anymore). So, you really have to make a personal decision as to which you prefer to use. NI pushes the system controls, but you'll notice there is a large number of controls which are not available in the system pallette. I have made versions that look like system controls, but they do not automatically update for theme or system color changes.

Boolean button changes color briefly when pressed

Hi, I am using Boolean button as a toggle, so I only want text changes when it is pressed with no changes to button appearance.
I am able to change the color for On in properties to match the Off color (I am using the Silver palette so normally On is yellow), however when the boolean button is changes to On, there's a brief changes of color still. Is there any way I can get rid of it?
In fact some of my buttons blink black while others blink yellow. I have no idea where that is set.
Thak you very much.
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There are 4 colors for booleans ON and OFF plus going from ON to OFF and going from OFF to ON
You only see the transition color when you have the Mech latching set to "latch when released"
Set it to "Latch when pressed" and you will not see the transition colors
You can set all 4 colors by using the Colors [4] Property
Colors [4] Property
Short Name: Colors[4]
Requires: Base Development System
Class: Boolean Properties
To Use: Create a property.
Array of up to 4 (Foreground Color, Background Color) pairs, where Foreground Color is the foreground color of the Boolean control and Background Color is the background color of the Boolean control. Color pairs include False, True, True to False, and False to True.
You can set the color of the front panel object by wiring a hexadecimal number with the form RRGGBB or by wiring the color box constant to the property.
This property is similar to the Colors option on the Appearance page of the Boolean Properties dialog box.
If the Boolean control has four (Foreground Color, Background Color) pairs for the four states, this property always returns an array of four (Foreground Color, Background Color) pairs when reading. When writing, you can pass in an array of length 1, 2 or 4. If you pass in only one element, this property uses that element value for all four states. If you pass in two elements, this property uses the first element value for the False and True to False states. Similarly, this property uses the second element for the True and False to True states.
If the Boolean control has only one (Foreground Color, Background Color) pair for all four states, this property returns an array of one (Foreground Color, Background Color) pair when reading, and uses the first array element when writing. You cannot change a Boolean control with one (Foreground Color, Background Color) pair to a Boolean control with multiple (Foreground Color, Background Color) pairs.
This property only uses the True to False and False to True states when you set the Boolean control to latch or switch when released. You can get and set these (Foreground Color, Background Color) pairs even if you do not have the control set to latch or switch when released; they just are not used.
Because this property does not change the data of the Boolean control, you can set it at any time.
You can use the this property for Boolean controls on the Classic, Express, Modern, and Silver palettes. You cannot use this property for Boolean controls on the System palette.
Omar

How can I Change data in a type def control containing a Xcontrol with a local variable

Hello
I made a Xcontrol and I inserted this control in a type def.
When I want to change the control's data with a local variable in a VI, the VI change nothing. The change of data isn't perform
How can I correct this issue?
Thanks for your help
Solved!
Go to Solution.

Hello,
What's your LabVIEW version ? Do you have a simple example program which demonstrates this behavior ?
I found another discussions related to your issues with Xcontrols:
updating type defs in Xcontrol Facade
No Data Change event generated for a XControl in a Type Def
XControl facede.vi
Hope this helps.
Regards,
Steve M.
National Instruments France
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>> Vidéo-t'chats de l'été : présentations techniques et ingénieurs pour répondre à vos questions

How to use one boolean button to control many boolean buttons?

I would like to create a LabView control interface with boolean buttons.
As my attachment picture shown, there are four boolean buttons.
The button1 is the main power, if I press ON button1, other three
buttons also turned to ON at the same time.
How do I build up the LabView program in the block diagram?
What should I do???
Attachments:
booleans.bmp ‏722 KB

Controls and indicators function as variables. In a text based language, you could just write the name of the variable again. In LV, since each control only has one terminal, you need local variables to do this. To create a local variable, right click on the control and from the popup menu select Create>>Local Variable. You can have a local as read or write. Create a local for each of the buttons and wire the data coming out of the first button into the locals.
There is something that is very important to understand here - when you use locals, you can disrupt the dataflow nature of LV and create race conditions. For example - if, after fixing your code, you were to click on one of the buttons, to set it to F, it would immediately be set back to T by the running code. This can be very dangerous. Also, I see you're using the continuous run mode. You should use a loop instead. Try looking for some LV by searching google for "Labview tutorials. Also, here's one you can start with.
Try to take over the world!

No Data Change event generated for a XControl in a Type Def.

Hello,
Maybe I am missing something but the Data Change event of a XControl is not called when the XControl is used in a Type Def. or Strictly Type Def. (see the attached file).
There may be some logics behind it but it eludes me. Any idea of why or any idea of a workaround still keeping the Type Def. ?
Best Regards.
Julian
Windows XP SP2 & Windows Vista 64 - LV 8.5 & LV 8.5.1
Attachments:
XControl No Data Change event.zip ‏45 KB

Hi TWGomez,
Thank you for addressing this issue. It must be a XControl because it carries many implemented functions/methods (though there is none in the provided example).
Also consider that the provided non-working example is in fact a reduction of my actual problem (in a 1000-VI large application) to the smallest relevant elements. In fact I use a typedef of a mix of a lot of different XControls and normal controls, some of them being typedef, strictly typedef or normal controls and other XControls of XControls (of XControls...) in a object oriented like approach...
Hi Prashant,
I use a typedef to propagate its modifications automatically everywhere it is used in the application (a lot of places). As you imply a XControl would do the same, though one would like to construct a simple typedef when no additional functionality is wanted.
The remark "XControl=typedef+block diagram" is actually very neat (never thought of it that way) because it provides a workaround by transforming every typedef into a XControl. Thanks very much, I will explore this solution.
One issue remains: All normal controls update their displayed value when inserted into a typedef but not XControls. Data change event is not triggered. I known that XControls have some limitations (no array of XControls) but I would say, like TWGomez, that this is a “bug” considering the expected functionality.

How to create a table with strings active by boolean button

Good morning.
I have a problem to create a table and did not find any topic in the forum who could help me solve this problem.
I need to create an alarm table.
That is, every time an alarm was activated (boolean button), the table will show the time,date and where that alarm occurred.
For example, when the garage alarm is activated, it will to table:
Date // Time // Garage // Presence ON
And so on, when the alarm is activated the room:
Date // Time // Room // Presence ON
If anyone can help, I'd appreciate it enough.
Thank you.
Solved!
Go to Solution.

Giuliano06 wrote:
So I can show the alarm, but when the button is not selected, it is sending null value (blank string) for the table through the shift register.
Also, when I select for example the 2 bedroom, he is moved to another column in the table and not just below the last alarm obtained.
My VI is attached case someone might have an idea.
your constantly polling the value to your table, ofcoarse this vi is designed according to the mechanical action of the boolean switch...
Attachments:
Sensors table.vi ‏10 KB

How to change the font color in a strict type def programatically

Could someone suggest a way to change the font color of a string indicator in a strict type def cluster programmatically? The cluster contains a label that is color-coded to match the function of the data channel represented by that cluster. The function of each channel is not predetermined, so the font color needs to be changed programmatically. To represent all channels, I have arranged a large cluster that contains 100 instances of the control. This makes it essential that the control be strictly type defined in order to change the layout of the clusters uniformly.
Can anyone suggest either a method by which I can let the control remain a strict type def and change the font color, or a method by which I can programmatically change the control from a strict type def to a type def? Currently, I am saving the control as a strict type def every time I make a change and then saving it again as a type def when I am ready to run the program. This works fine, but just seems inelegant. This color-coding is used throughout the program in various indicators, so a neat solution would be greatly appreciated.

As mentioned in my Nugget on Type definitions you can create strict type-defs that contain type-defs.
If you make your data definition a type and put that definition in a strict type-def (one of each flavor) you can use the appropraite strict type where each is required.
Yes the data structure will have another level of nesting so if you are "too far gone" you may not like this idea.
Otherwise you can write a VI that opens the typed-def and do a "save as..." and use it everytime you edit the type-def.
I hope something helps!
Ben
Message Edited by Ben on 10-06-2008 10:26 AM
Ben Rayner
I am currently active on.. MainStream Preppers
Rayner's Ridge is under construction
Attachments:
Strict_of_Typedefs.PNG ‏30 KB

Setting control to default value when it is a strict type def

If my subVI has a control that happens to be a strict type defined cluster and I have saved the values in the control as the default values, how can I change them back to the default values of the type def (which are empty). Because it is a strict type definition, i cannot click on the elements inside the cluster and modify them (e.g. click on an array inside the cluster and do an empty array operation.)
In the attached screenshot, the control "BLE Meters To Test" is just an array of clusters and I was able to empty the array. The control "Capture Data" is a strict type def. I would like to clear the contents of this control without having to delete the control and add it back with a new instance of the same strict type def.
Solved!
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Attachments:
screenshot.PNG ‏33 KB

are you talking about edit mode or run mode?
You could temporarily add a second instance of the typedef (all empty), then change it to a constant. Whenver you need to reset at run time, write the new digram constant to a local variable of the control.
glstill wrote:
Because it is a strict type definition, i cannot click on the elements inside the cluster and modify them (e.g. click on an array inside the cluster and do an empty array operation.)
Make sure to click on the array container, not on the array elements.
LabVIEW Champion . Do more with less code and in less time .

Change table size and headers in type def cluster

Is is possible to change a table size and headers that is inside a type def cluster?
I have a vi that loads test parameters from a csv file. The original program used an AC load so there was a column for power factor. I now have to convert this same program to be used with a DC load, so there is no power factor column.
I have modified to vi to adjust the "test table" dynamically based on the input file. But the "test table" in the cluster does not update it's size or column headers.
The "test table" in the cluster is used through out the main program to set the values for each test step and display the current step by highlighting the row.
Attachments:
Load Test Parms.JPG ‏199 KB
Table Cluster.JPG ‏122 KB

Nevermind, I figured it out...
I was doing it wrong from the start, in an effort to save time writing the original program I simply copied the "test table" to by type def cluster. This worked but was not really as universal as I thought it would be, as the table was now engraved in stone since the cluster is a type def.
I should not have done that, but rather used an array in the cluster and only used the table in the top level VI where it's displayed on the screen.

Array of strings strict type def not updating

I have defined an Array of Strings (ctrl) as a strict type def. When I update this array (add another string to it) the values don't update where this control is used. Can someone please explain why this is occuring.

Only the size of the array _shell_ is locked, not the size of the array data. The array shell is a window into the data of the array control. If you change the value of the index display you will change the indices visible inside the array shell.
-Jim

About Strict Type def

Hii
i have created a cluster of ring control as a strict type def.Also i have used a constant of that cluster in my program where i need.Now am changing the items in that ring control by opening the strict type def.I am giving Apply changes , save and all.Now the cluster in my program is changed.But my constant remains unchanged.;..How can i update a constant...

The wonders of searching (and that's just one of the results for my simple search).
Try to take over the world!

Sort Second Element in Array of Strict Type Def Clusters

I need to sort the an array of strict type def clusters by the second or third element in the cluster. In the past I have used 1-D array sort and sorted by the first element of the cluster. When I need to sort by the second, third, or fourth element of the cluster I just break down the cluster and rebuild it placing the desired sort element in the first position of the new cluster. This works for simple tasks and clusters, but as the cluster gets more complicated this becomes a pain to do this. There must be a cleaner way to sort by other elements within the original array of strict type def clusters. Has anyone succeeded in doing this a different way?

Hello,
Here's the way I would do it...just create a new cluster array, where each cluster contains two elements...the unbundled item you want to sort by, and the cluster itself. Then sort the new cluster array, then unbundle the sorted cluster array to get the original clusters (now sorted). Here is a screenshot:
There may be a better way, but this is the first thing I thought of.
-D
Message Edited by Darren on 03-16-200610:00 AM
Darren Nattinger, CLA
LabVIEW Artisan and Nugget Penman
Attachments:
Sorted_cluster.jpg ‏30 KB

HOW TO GET REFFERENCE OF INDICATOR OF TYPE DEF CLUSTRE

Have 2 quastions:
1. Have a type def culster of boolian indicators.
how to extract individual references so I can pass them to sub vi.
2. Since bollian indicators dont latch its value.
Can I make an array of boolian indicators that will keep its value hen passes to sub vi.
Thanks.
Solved!
Go to Solution.

Neos wrote:
Actually the example was to just show how to get reference of individual controls of cluster.
whatever the OP wants to do with refrences its his choice.
Firstly, I got a little confused because you had thanked me and so I thought you were the OP for a moment.
Secondly, though - your example added just enough obfuscation that the OP did not understand that this was actually an exercise to get references from a cluster.
I know you used the property nodes to bring out the reference wires. If the wires were connected to indicators that said "control reference" it would probably have been clearer.
One thing you should note is that if a pupil does not get the concept you are trying to teach, 99% of the time it is the teacher's fault.
Bill
(Mid-Level minion.)
My support system ensures that I don't look totally incompetent.
Proud to say that I've progressed beyond knowing just enough to be dangerous. I now know enough to know that I have no clue about anything at all.

Can I use multiple type def enums in 1 VI?

Is it possible to use multiple type def enums each having its own states? In the larger scope of things I want to use it in a QSM.
Thanks
mhaque
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Sure you can have multiple type def enums. I don't know what you mean by "in 1 VI". Each typedef enum will have its own .ctl file.

Type def boolean button.

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