Trabajar con Multicolumn Listbox

Hola a todos...mi pregunta es la siguiente:
me encuentro realizando una aplicación donde almaceno en una base de datos el nombre de unas variables (temperaturas), mas no el valor.
en la primera columna muestro los datos de un Select que hago a una tabla donde estan los nombres de las variables (select nombre from tabla), mi pregunta es la sigiuente como puedo colocar en la segunda columna del Multicolumn Listbox el valor de las variables que tengo almacenados en un array que lo capturo en tiempo real.
el Multicolumn Listbox quiero que se me vea así:
Multicolumn Listbox
variable valor
Temp1
60
Temp2
80
Temp3
30
Temp3
40
gracias...

Hi pineda,
if you have all the names in one array and your temperature values in an other array you can use the "build array" function to get a 2D Array of it. After that you can use a property node of your multicolumn listbox and write the data into it.
Hope it helps.
Mike
Attachments:
Multi_LV80.vi ‏10 KB

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Regarding Array to Multicolumn Listbox data's manipulation

Hi - I want to display the above mentioned array in muticolumn listbox with 2 columns , first column needs to be belongs to array [0] (Date and time ) and second column needs to be belongs to array [1] and array [2] ( Cone and Vane strings).
I have tried to implement the same, please go through the attached VI and I cannot make the above mentioned array data's into two column multi column listbox data's (that is , can't able to display the array [1] and array [2] data's in single column.
Please let me know the solution to resolve this as soon as possible.
Thanks and Regards,
Dinesh
Attachments:
Cone and Vane Operations_Final.vi ‏60 KB

Well, your VI is a complete mess and has several CPU burner loops that run as fast as the computer allows. There is also a lot of duplicate and overly complex code. Programmed correctly, code with all this functionality could probably fit on a postcard.
Anyway, for just building the multicolumn listbox, here's somewhat simpler code. Hopefully you can adapt it to your problem.
Note that you probably want to add only one row at a time, and you only want to add to the listbox and save to the file when new data arrives and not millions of times per second. Try a queue, for example.
LabVIEW Champion . Do more with less code and in less time .
Attachments:
Cone&Vane.vi ‏8 KB

Adding a single line to a multicolumn listbox?

Hi Community,
I have a multicolumn listbox which tens of thousands of lines where each line is color coded and represent a cycle with a pass/fail status. The only way I have found to add lines to a multicolumn listbox is to read its ItemNames property which is a 2D array of strings, add the new line to the 2D array and then write then new array back to the ItemNames property.
The problem is that after couple thousands of lines this get more and more slow.
Is there any way to speed this process up, maybe by adding the line to the listbox in a different way?
thx.

The Listbox, and Multicolumn listbox controls got many UI performance improvements in 2013, what version are you using?
https://lavag.org/topic/17009-labview-2013-favorite-features-and-improvements/
But even if you are on an old version there are many tricks to making the UI more responsive, like using defer panel updates, and virtual multicolumn listboxes.
https://lavag.org/topic/15289-virtual-multicolumn-listbox/
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How can I automatically word wrap a string placed in a (multicolumn) listbox ?

Hello,
Using LabView 7.0:
I need to automatically wrap text inserted in a multicolumn listbox.
The size of the listbox is fixed and I don't know the legth of the string that will be inserted. But the whole string must be visible, because it's Information is important
I'm not allowed to use a fixed width font. :-(
Has anyone any ideas (or a solution already?)
How can I compute the length of a string in pixel to calculate to position to wrap?
Thanks in advance,
best regards,
Rainer

Hi Veena,
The trick is to use the Get Text Rect.vi to calculate where to wrap your text string. There's no feature to automatically wrap the string for you, so you will have to split you string into sections/lines, that doesn't exceed the width of the column in the listbox.
Good luck!
- Philip Courtois, Thinkbot Solutions

How can I set font size of a column of Multicolumn Listbox at one time in edit mode?

HI,
I want to creat a Multicolumn Listbox with different font size in diffrent columns.
But I can only modify all cells or one cell font size at one time!
How can I do?
THANKS!

My labview version is 7.1.
I can't open the .vi you deliver.
And in LV7.1, I can't find fontsize setting in property node.
thank you all the same!
Attachments:
1111.JPG ‏27 KB

Inserting an image in a column of a multicolumn listbox

Hi,
How can I insert an image in a column and row of a multicolumn listbox? Is it possible?
Thanks,
ToNi.

To change any property of a cell, you must first select it using the Active Cell Property node, a cluster of row and column indexes. Setting the indexes values to -2 select the entire row/column/table, including the headers, setting the indexes to -1 select only the headers.
Changing a column foreground color without affecting the header color is therefore a 3 steps operation :
- set the active cell property to -1, n (n being he column index); read the foreground color
- set the active cell property to -2, n; write the new foreground color
- set the active cell property to -1; write back the previously read foreground color
Since you cannot change programmatically the images in a ring, the pict ring array cannot be used if you want to load new images at run time.
Use instead a picture array, as shown in the attached vi. I still use a pict ring, but that's just as a convenient image source. Replace it with your own source (file dialog for instance...)
CC
Chilly Charly (aka CC)
E-List Master - Kudos glutton - Press the yellow button on the left...
Attachments:
ListBox & Picts.vi ‏1 KB

How to change the text size of a multicolumn listbox ?

I would like to have all text in my multicolumn listbox biger and bold. I don't find anything with property node.

Hi
Use the Positioning tool to select the entire Multicolumn Listbox. Then use the Text Settings in the LabVIEW toolbar to change the font, style and so on. You will see that the font of all the items in your Multicolumn Listbox (including its label) are changed at once.
If you want to change only one item, than you can use the Text tool.
Luca P.
Application Engineer
National Instruments
Regards,
Luca

How can I justify text in a multicolumn listbox cell dynamically

I use a multicolumn listbox with two columns to display an event list. Then number of events is different and can exceed the number of displayed rows. I need to justify the text in the first column to right dynamically.
Is there any way?

I would split the listbox in two different listboxes, each one with its specific format (make it static).
Doc-Doc
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http://visionindustrielle.ch
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Entries into Multicolumn Listbox/Safing Data in .txt-file

Hello. I haven't found anything helpful for my problem or better to say problems. I have to do a task that I have no idea how to solve. It isn't helping that I was never good with programming. Here is what I have up till now:
I want to write seven strings indivudally into a multicolumn listbox with seven columns. The first shall be a running number, increasing for every row. For this I'm using right now a Case Structure. And there is my first problem. I don't know how to realize that whenever a row is completed the next string is written into the next row instead of overwriting one in the completed row.
This has to go one for as long as the user wants to. Then there has to come a Pop Up Window - if that's the correct term - and shall ask the user if he/she wants to safe the created list into a textfile. And that's my next problem. I have no idea how to program that.
I know it's probably rather easy to program these things in LabVIEW 8.0 (which I'm using) but as I've already said I'm anything but good in programming at all and to make things even more complicated I don't want to do this task, therefore not putting all my energy into it as a result.
Please, can someone here help me?

Does it have to be a multicolumn ListBox?
Seems like a table might be more appropriate, if it's only for display purposes.
Either way, you need to use a FOR loop inside a FOR loop to generate a 2-D array of strings.
The INNER loop generates the strings for each column in a row, the OUTER loop generates each row.
You wire the 2-D array directly to a TABLE indicator, or to the ITEM NAMES property of a ListBox.
Attached is a pic.
Message Edited by CoastalMaineBird on 08-21-2007 01:52 AM
Steve Bird
Culverson Software - Elegant software that is a pleasure to use.
Culverson.com
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Attachments:
TwoLoop.png ‏226 KB

How to read 'clicked header' AND selected row from multicolumn listbox?

I have a multicolumn listbox filled with 6 columns and about 500 rows.
I want the user to be able to click on a column header, and sort the listbox alphabetically on that column. I've written the code for that, and that works. (using the 'itemnames' en 'get clicked col hdr' properties.)
However, I also want to include the option, that when a user highlights a row, and then clicks on the header, that after the listbox gets sorted it scrolls down to the selected row.
(So that the user doesn't have to search for it)
And that's where things go wrong, because the value of the listbox changes to zero when you click on a column header. No I idea why it does that, but it's rather
annoying. Can I change that behaviour somehow?
Or any ideas how to get around it?

My thanks to you and Jared.
Seems I got a working solution now.
Did take a while to figure out why your solution worked. Basicly, you're reading the row from a few iterations before.
As soon as I understood that, I simplified it a little. Look at the attached file... I think it does the same. :-)
Jared asked for the sorting routine. As I don't seem to be able to attach files when replying to comments, I took the liberty to include it here also.
Basicly, I just use the 'sort 1D array' that comes with Labview 6. To be able to sort a 2D array, I convert every row to a cluster. That's something the 'sort 1D array' VI can handle nicely.
To sort on the correct column, I just cut all columns in front, and paste them behind again. A
fter sorting, I reverse the process.
Anthony.
Attachments:
copy2_of_multicolumn.vi ‏26 KB
sort_2d_string_array.vi ‏34 KB

Problem with Multicolumn Listbox Scrolling

Hello...
Can anybody please tell me how to scroll according to row no. in multicolumn listbox?
I'm working on a VI where I have to test some conditions which are depending upon RPMs... For testing ease I have sorted the conditions according to the similar RPM... But the conditions are scattered in the multicolumn listbox ie they are not in sequence... Suppose the conditions are on row no. 1, 7,15,38,56,82,100,139,180 something like that....
Is it possible to scroll down according to row no. While running the VI...? So that the viewer can see which condition is in progress & it's results...
Thanks in advance for any help...

I have seen a property in a scrollbar that limits the scrolling range to it's maximum.
I'm not sure the same property is available in 7.1.
You might need to remove the listbox's own scrollbar and use a seperate one.
Ton
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My LabVIEW Ideas
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Migration of multicolumn listbox from 7.1.1 to 8.5

I recently migrated a VI containing a multicolumn listbox from LV 7.1.1 to LV 8.5. Interestingly the 3D-headers got lost and the hight of the rowes changed.
Left in the picture is the LV 7.1.1 version and right is the LV 8.5 version. The font is set to Lucida Console 14 bold.
I got CAR 119444 for this conversion bug.
Message Edited by waldemar.hersacher on 07-10-2008 09:02 PM
Waldemar
Using 7.1.1, 8.5.1, 8.6.1, 2009 on XP and RT
Don't forget to give Kudos to good answers and/or questions
Attachments:
multicolumnlistbox.png ‏2 KB

Hi Vicky,
No worries my friend
We have not done this upgrade and do not have any current plans to do so. I am
always, always, always slow to move along the upgrade path. This may be a bad thing
but it has saved us some great pain as well over the years. Our current versions are;
CUCM - 7.1(3b)su2
CUC - 7.1(3b)su2
We have found these versions to be very stable. I have spent a fair bit of time looking at people's
migrations to 8.5(x) here @ CSC and have not seen or heard of too many horror stories. This is one bug you'll
want to look out for.
CSCtn61453            Bug Details
Applying 8.5.1 software as patch results in corrupted CUC installation.
Symptom:
After fresh installation of 8.5.1 software, we can notice several problem symptoms.
- Connection services and Connection DB does not start
- System cannot be accessed via web page
- Informix error messages for certain CLI commands
Example :- show cuc cluster status
com.informix.asf.IfxASFException: Attempt to connect to database server (ciscounity) failed.
Command failed
Conditions:
It is observed during fresh installation of Unity Connection product when installation was
started with earlier version of software and 8.5.1 software was applied as a patch during the setup process.
Workaround:
First, perform a fresh installation of earlier version of software using the install media. Then after verifying the installation, proceed with the upgrade to 8.5.1 as a separate process.
Status
Open
Severity
2 - severe
Last Modified
In Last 3 Days
Product
Cisco Unity Connection
Technology
1st Found-In
8.5(1)ES1
Best of luck with your changes.
Cheers!
Rob

Images in Multicolumn Listbox doesn't work as expected

In the attached example, the symbols are getting displayed in the correct order but missing the symbol for the first row. I can manually select the symbol but by default only the 2nd symbol from the provided array list appear.
Any idea what's the issue?
How to display correct symbol?
Thanks in advance.
Cross-post from LAVA: http://lavag.org/topic/15788-images-in-multicolumn-listbox-doesnt-work-as-expected/page__pid__95584#...
Solved!
Go to Solution.
Attachments:
Images & Multicolumn ListBox.vi ‏10 KB

Hello, Vidula
It seems that index 0 is reserved for the empty symbol, no matter what custom symbol you provided. Adding one image in front before setting symbols array and incrementing ItemSyms indexes solves this problem. However, I can't find any information about this in documentation, which would be nice
Attachments:
Images & Multicolumn ListBox.vi ‏12 KB

Drag and drop from Multicolumn listbox to another Multicolumn Listbox

how do i drag and drop from Multicolumn listbox to another Multicolumn Listbox?/...any example..
use LABVIEW 8.2.1
regard's
eyal.

To drag and drop within the target listbox you'll have to add a Drag Starting? event for the target listbox and register that drag data with a different adn unique Drag Data Name, then in the Drag Enter? event check for that data name as well before accepting the event, and then in the Drop? event for the target listbox handle the new data name as well. You can use the Point to Row Column invoke method to determine which row, column, or cell is being manipulated. I've created a VERY crude example of this, but you'll have to get more creative with how you handle the moving of rows, columns, etc. for the target listbox, but I think it gives the general idea. Hope this helps!
-rw
Attachments:
Drag and Drop Example v2 8.2.vi ‏28 KB

How do you drag and drop columns in a multicolumn listbox?

Hello,
Im trying to have a multicolumn listbox setup so that you could select a column, and drag it to another location so that the use would be able to rearrnage the table if they so pleased. I've tried looking for a few different ways to do this, but I havent found anything yet. Is there a way that this can be done?
Thanks,
Mark

Hey, see the attached examples. I modified the example mentioned earlier. You basically use a invoke node to get the position of the mouse cursor when the drag starts. This allows you to know what column you are dragging. Then you do the same when the "drop" event happens. This allows you to know where you want to drop the event. Then you have to program in the change in the listbox's strings. That is at least how I have done it in the past.
Let me know if this helps.
Dan
Daniel Eaton
National Instruments
Systems Engineering
Embedded and Industrial Control
Attachments:
Example FP.JPG ‏61 KB
Example BD.JPG ‏75 KB

Trabajar con Multicolumn Listbox

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