How to create a strict property node.

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• How to create a specific property node w / script of VI

  I am writing a VI script to work with multi column list boxes.  I need to create a property node that gets a reference to the REF field.  I see that I can create a property via the method invoke Create.Property node node node, but how to get the REF field specifically I have so far can't understand.  Can anyone help?

  To be clear, I write code that looks like this:

  

  .. .and when I run the script, I want to produce this:

  

  At the time current it produced as planned MCL, via the node of the new VI object... but I don't know how to get the Ref created automatcially.  I thought that it would be in the table PropItems, but so far without success.

  Thank you

  "PropItems []" exit will be a table in a single element.  This element of the index and the reference to a node to invoke the wire.  Select the mode "SetProperty".

• How to create a strictly typed control refnum using LabVIEW scripts

  I want to use LabVIEW to create a strictly typed refnum control that is bound to my custom control (a defined cluster), but I'm not familiar with scripts and can't see how to do it.

  If I create a new object of VI, with Refnum of control as the Style, how can I give my custom class object VI control terminal? When I try to use a reference to my control.ctl file customized (using the Open VI reference) I get an error: 'error 1057 occurred... ". Type mismatch: object cannot be cast to the specified type. »

  Alternatively, if I create a new Refnum of control as above, using a standard Cluster as the object of VI class, how I can convert this refnum control to a strictly typed refnum, which is related to my custom cluster control type?

  Thanks in advance for any advice,

  I tried, and as usual, things were slightly different.  The big problem is that a constant control reference becomes a node, not a constant, so cannot be converted to a control.  The good news is that you simply move to the front of the new control, as you would in the dev environment.  Here is the raw code (always needs cleaning to close the refs and add save of the new control, and more, you don't need to show the FP control if you do not want).

  

• Unicode property nodes

  Hello

  I'm struggling with the implementation of Unicode in an application.

  The main question that keeps me is:

  Although I added UseUnicode = true to my LabVIEW.ini (currently using LV2011 SP1) I can't create the necessary property nodes such as 'BoolText.InterpAsUnicode '.

  I checked the Vi scripts display in the vi server options and restarted LabVIEW nothing helps.

  Does anyone know what it is?

  Best regards Florian

  Hi Florian.

  I can't find this in LV 2012 property node either. The developer notes, this is a regression that occurs in all versions past, I think, 2009. I know it must be frustrating - Unicode + LV =

  Best regards

• How to set the property node maximum xscale for several scale XY Chart

  Hello

  I use a graph XY with three X axis and three scales of axis Y to draw the three sets of data. This works well.

  What I do now is to set the Xscale.Maximum property node for one of the x-axis (the other two autoscale). If I click right in the (Create Blockdiagram; Node property; X scale; Maximum) I can not choose what x-axis I want to put the Maximum for.

  So my question: how to select a specific axis allows you to set the XScale.Maximum property node when having several axes?

  Thank you for your help, any suggestions are appreciated!

  Hello

  After some more research and experimentation, I found that using the scale property X Active I can determine/set for which the XScale.Maximum Xscale is used.

  This solved my problem.

  I hope someone else can save themselves a few hours with this thread!

  Thank you

• How to use property nodes?

  Hello world

  I am a beginner of LabVIEW. So I want to know about the property in detail node. Please please someone help me to know the function of each property node...

  Thank you in advance,

  Hi Achuthaperumal

  I understand that you are a beginner of the LabVIEW. But I think it's too difficult to explain the function of each property node.
  Because there are a lot of property node in the LabVIEW.

  The main reason we use a property node is we want to change a LabVIEW action programmatically.

  When you create a LabVIEW program, you can change the behavior of "every indicator/controller etc." by changing the property.

  But in this method, you cannot change during the execution of the program.
  For example, if you want to control "the color of the Boolean indicator."

  You can use this property of node

  => Can I programmatically change the colour of the façade? http://digital.ni.com/public.nsf/allkb/0DDBDB2FE2F54A5286256918006D7BB9.

  If you want to know the function of each property node, I will recommend you to use LabVIEW HELP.

  Tepig

• How can I use the property of a node that is not related in a formula?

  Hello Experts,

  I need help with a formula.  I want to set a property 'Y', according to the following conditions:

  Node = XX_1234 - this is the node whose property we want to update 'Y '.

  Node = 1234 life elsewhere in the same hierarchy.  1234 node has a property called Custom.XX_Account and under certain conditions this property can be null, or it can be "filled with XX_1234 in the case of my example.

  I want to set the property indicator = 'Y' for node XX_1234 when Custom.XX_Account property node 1234 = "XX_1234."

  I know that substring off the "XX_' of my node (XX_1234) but I don't know how to find a property to another node (not related).

  Help and recommendations are greatly appreciated!

  See you soon!

  Hello

  I think that after reading your two previous posts on PQRS account (where P, Q, R, S are many) you have a XX_Account property (where XX_ is a fixed prefix?) and this property can have only two values (NULL or XX_Abbrev()).

  If (and)

  Equals (String, SUBSTRING (ABBREV (), 1, 3), XX_),

  NodeInHier (SubString (Abbrev (), 4, PropValue (Core.HierName), Length (Abbrev (())))).

  If)

  Equals (String, NodePropValue (Substring (ABBREV (), 4, length (ABBREV (())), Custom.XX_Account), ABBREV ()),

  THERE, XXX))

  (Where XXX is the Else condition you specify wana)

  I'm hoping to have read your request correctly and it helps.

  Thank you

  Denzz

• How to change the value of the array element by using the property node

  Hello all :)

  IM using a table in the drop-down list box. the size of the array is not fixed.

  I want property strings [] from the drop-down list box to enter text in selection, but since I placed it inside the table im unable to use this property.

  I used 'arrayelem' reference property and property node connected to it but got no strings [] in the selection.

  so is it possible that I can use property strings]

  
  

• How can I control the elements in the graphic palette (profile line) via the property node?

  Hello everyone,

  Is it possible to control the elements (graphic palette in the profile of the line) via the property node?

  Greetings zapfle

  In general, you must balance only Min/max property, then you can "zoom and Pan" by program:

  

  Andrey.

• How to create a custom control for a button where the look apply to everyone else but not the Boolean text?

  Hi all

  I would like to create a button custom as a master, so that if I change the look of the master all other buttons are changed.

  I did it with a custom control, such as a 'type strict def' otherwise the look will change , BUT if I do this as a strict type def I can't change the Boolean text more which should be different on each button.

  How to create a master control of a button where the look apply to everyone else but not the Boolean text?

  Steve Chandler wrote:

  I don't think that you can do. I just looked and as I suspected the Boolean property text is read only for strict typedefs, you cannot use the nodes property to change the text.

  As a just solution make it a typedef. When you want to change the open look the typedef and strict rendering, make your changes, then make no strict again. You will need to update the text Boolean yet once for all instances. Kind of pain. This is perhaps something for the exchange of ideas.

  Alternatively, remove Boolean text and replace with legend

• The property node reference

  Hello guys,.

  Using the property node, I confused with the terminal of reference there. Can we establish a special reference to the control (button, for example), but obviouly I couldn't connect the button directly to the point of reference. I find an example about which attached in attachment. How can I creat something like that? So enjoy!

  Phyyu,

  VI server references follow the structure of object-oriented class. A VI server reference can refer to a wide range of objects, such as a control, etc. variable indicator, VI. Server of VI References can be as strict or not strictly typed as you wish. A control/light specifically made reference refers to a command that you pass to it. You can request to be more rigorous by right clicking on the reference, and using menus to select the class that you want to reference. A tree of possible class might look like this: Server VI > generic > G object > control > Array. Now this reference requires a pointer to a table control and will not accept any other type of control. If you use this reference control to create a property node, the properties will be specific to the array class.

  A refnum is simply a numeric value that refers to a place in memory. Reference and refnum are used somewhat interchangeably in LabVIEW.

  I hope that answers your questions! See the help files of LabVIEW for VI server references to learn more about them.

  Kind regards

  Alexandra Valiton

  Technical sales engineer

  National Instruments

• used in a Subvi LabVIEW property node

  I have a group of Boolean control front, I want to minipulate the visibility and color (4) in a Subvi.  I created a Boolean refnum cluster and spent by them in VI.  In VI, I created a group of CTLRefnum that I used as entrance pole.  In the Subvi, I am able to control the visibility through the time property node, but the Color property node (4) does not appear as a selection in the Sub - VI.  Any ideas on how I could control the colors in a Subvi.

  Hello HEJ@WR,

  Looks like you may have thrown your refnums Boolean to more generic control refnums - as the Color property is specific to Boolean values, you will need to ensure that you are now the reference type.  Visibility is a property more generic that applies to all types of controls. Refer to this article for more information on casting refnums:

  LabVIEW Help: For more specific class function

  http://zone.NI.com/reference/en-XX/help/371361H-01/Glang/to_more_specific_class/

  LabVIEWWiki also has a very good discussion of types refnum and properties specific to the class here:

  LabVIEWWiki: Control references

  http://labviewwiki.org/Control_References

  Also - if you set the example code showing what you're trying to do is much easier for other users of the forum help!

  Kind regards

• Graphic property node indicator position

  Hello! I have several graphic indicators and I want them to appear on certain positions, so I created property nodes where I define their exact position. I have a tab control in my design to separate the 2 pages front and the problem is that indicators are displayed on both pages. I want them to appear only on one page, how do I solve this problem?

  Thank you for your time.

  Hi cocopa.

  On the front panel, if you drag the graphical indicator in the appropriate page then it should stay there. If the graphical indicator has a shadow, it is on the top of the tab rather than inside a page control. In the block diagram, you must have a business controlled by the tab control structure. When you want to adjust the graphic position, have the indicator and the property node in the box to the right page. That should allow you to move the chart inside your tab control page.

  Kind regards

  Daniel H.

• property node

  HI (sorry for my English) I have the problem of monitoring:

  I have a vi that makes measurement it download a cluster with inside some indicators of number and a photo, I create a property node and a control for the cluster reference.

  In my main vi I create the same cluster and I join with my vi measurement using a command reference.

  the problem is... as vi dynamically change the node properties of zoom factor, left and top of image origin origin. I would like to know how to do the same thing for my core related?

  Thank you

  Roberto

  Hello Roberto,.

  TI turn it che VI ho fatto di prova.

  Great ho added her seconda e modificato it tutto anche known reference quella.

  Let me know is cosi funziona correctly come straight.

  Good day,

  Valerio

• How to create a chain of buttons?

  Hi, I am new to the use of labview and I want to create a simple program such that when a user selects a button would appear another button.

  i.e. If the user selects LED, on the Panel before 2 other buttons would seem to invite the user who led should be lit. If the user selects the engine, 3 buttons would show on the front panel is turning left, right, or stop it.

  I was wondering if this is possible. If so, I was wondering how to do this.

  Thanks for the help in advance!

  bluexdestination wrote:

  Hi, I am new to the use of labview and I want to create a simple program such that when a user selects a button would appear another button.

  i.e. If the user selects LED, on the Panel before 2 other buttons would seem to invite the user who led should be lit. If the user selects the engine, 3 buttons would show on the front panel is turning left, right, or stop it.

  I was wondering if this is possible. If so, I was wondering how to do this.

  Thanks for the help in advance!

  If you rt click the buttons you want to display on the façade, creating > property node... There's a call from the "visible" property make these fake during initialization and then true when your motor or LED buttons are met