Propert nodes using references in subVIs

Does passing a reference to a control in the master VI to a subVI for use of changing the control via property nodes cause the subVI front panel to load in memory? I would think that it would not since the property node does not refer to a control on the front panel of the subVI.

hi there
"..For example, this can occur if the subVI uses Property Nodes, because Property Nodes manipulate state information for front panel controls..."
i think that's true for the front panel that holds the control from which you call properties. the sub-VI calls a property of the control on the Top-Level, NOT of the reference control on the FP of the Sub-VI. rename the executable i posted in the zipfile to *.llb and open it in explorer. then open the Sub-VI and you'll see that the FP is not part of the executable anymore. so it can't be loaded at all.
if you call a property of the reference control you can't remove the frontpanel in the VI-settings any more (see attachment), because now you refer to a control of the Sub-VIs FP.
Best regards
chris
CL(A)Dly bending G-Force with LabVIEW
famous last words: "oh my god, it is full of stars!"
Attachments:
Properties.JPG ‏18 KB

Similar Messages

Labview property node used in a subvi

I have a group of front panel Boolean control I would like to minipulate the visiblity and color(4) in a subvi. I created a cluster of boolean refnum and passed them to the VI. In the VI I created a cluster of CTLRefnum which I used as the input cluster. In the subVI I am able to control the visibility via the visibiliy property node, however the Color(4) property node does not appear as a selection in the subvi. Any ideas on how I could control the colors in a subvi.
Solved!
Go to Solution.

Hello HEJ@WR,
It sounds like you may have cast your Boolean refnums to more generic Control refnums- as the Color property is specific to Booleans you'll need to ensure that you're maintaining the reference type. Visibility is a more generic property that applies to all types of controls. Refer to this article for more information on casting refnums:
LabVIEW Help: To More Specific Class Function
http://zone.ni.com/reference/en-XX/help/371361H-01/glang/to_more_specific_class/
LabVIEWWiki also has a pretty good discussion of refnum types and class-specific properties here:
LabVIEWWiki: Control References
http://labviewwiki.org/Control_References
Also- if you attach example code demonstrating what you're attempting to do it's much easier for other forum users to assist!
Regards,
Tom L.

Vision Builder 7.0(IMAQ) : Using fxs in subVIs with references to image control

When using IMAQ fxs (such as 'Write File') in subVIs, if one wanted to use references to an image control, what property or method would be used to feed into the image terminal in the imaq fx on the subVI? Is this possible?
What did work: I was able to directly use the image control on the main feeding an image control on the subvi panel (which is then fed directly to imaq fx)
What did not work: From a refnum control for the image on the main, I used (within the subVI) the value property fed to a 'Variant to Data' with type as image control, then feeding the output of this into imaq fx.

Typically you would update an Image Display control from a subVI using the Value property nodes. However, this method does not currently work with LabVIEW 7 and Vision 7, but the issue will be resolved in the next release of LabVIEW and Vision.
In the meantime, in addition to the solution you found you could also use a global variable to pass images from one VI to another. Using a global variable works, but not in the same way as a reference or property node would. With a reference or property node, you can pass a reference of the control to a subVI and have the subVI update the control's image. Using global variables, the subVI will update the global variable with the new images, but you need a loop monitoring the global variable in your top level VI.
I hope this
helps! Best wishes.
Regards,
Dawna P.
Applications Engineer
National Instruments

Pass control references to subVI using Invoke Method

Hi guys,
Can I use <Control Value Set invoke method> to pass some control references to a sub VI, then use the <Run VI invoke method> to run the sub VI with the previously passed data? The control refnums are for some frontpanel controls in the Main VI.
I was able to pass other data but the refnum didn’t work.
Thanks

Hi there, There are a couple examples that use the same method. Check them here:
- Set Control Values and Trigger UI Events in Another VI
- Set Values and Properties of Controls in a SubVI
- Save and retrieve front panel control values
Alejandro | Academic Program Engineer | National Instruments

SubVi with feedback nodes used more than once inside a While Loop

All,
I have a subvi that does a set of operations and uses 3 feedback nodes. I am using this subvi inside a While Loop a total of 4 times. I've noticed that all instances used share the same result at each corresponding feedback node but I would like to have an individual result from each of them. Is there an easy way to go around this problem? I have come up with ways to avoid this: a) create a different vi for each time the subvi was used. b) use global variables instead of feedback nodes. Is there any easier way to go around this issue?
ExamplePlease note that both subvi's are the same) If on my first subvi I calculate a maximum value and get 1.29 (then goes to feedback node) on my second subvi i get 1.01 my feedback node at the second subvi still registers the maximum value to be 1.29. (and I want it to be 1.01!)
Hope this is not too confusing, I've been scratching my head with this for a while, can't find the "easy" button. Thanks in advance.
-Pop
Im using 9.0.
Solved!
Go to Solution.

Attaching the code would be helpful. Anyway, I am not sure how multiple feedback nodes are supposed to operate so I will defer that to others to answer. As far as being able to use distinct values or instances if you are using a subVI you could mark it as reentrant. That way each call to it will behave as it it were a copy of the VI and it will have its own memory space. This should include the feedback node. You may be ending up with a single subVI and in reality a single feedback node. If you need to pass data between calls than simply wire the data through. You could also use an Action Engine to store and retrieve values. An AE is a MUCH better solution than a global variable.
Mark Yedinak
"Does anyone know where the love of God goes when the waves turn the minutes to hours?"
Wreck of the Edmund Fitzgerald - Gordon Lightfoot

Passing control reference to subVI crashes labview

Hi,
using a image control (as indicator) provided by imaq Vision, I tried to pass the reference of the control to a subVI. On a computer it works and on a other (same labview version, same vision version, same os, same hardware and hardware drivers!), this crashes labview. I tried to close the control refnum at the end of the subVI, but that changed nothing to the issue. Now I use the reference as a global variable and it seems to work...nevertheless, I would like to understand what the issue and if I should remove any passing to subVI of control ref because this can potentially triggers an error. My correlated question is if this global passing is a "fake" workaround or have real chance of improving (this before going through the whole code for changing all passing of reference to subVI)
thanks a lot

Hi,
thank CoastalMaineBird for your answer
How do you know it's this issue which causes the crash?
When I remove this parameter from and the only property node in the subVi that write to it, I have no longer any problem. Moreover, to ensure that's really the "passing", and made a global variable containing the reference to this control and use my original SubVi that do access the control through its reference number
, and it works! In this last exemple, the only change is the way of transmitting the reference
What LabVIEW version?
8.0.1
up to date according Measurement & Automation update tool
Given that one computer works OK, and another crashes, I would say that
you are seeing the effect of something else, not the cause. If passing
a control ref via terminals was fatal, it would be fatal all the time.
You have some other sort of issue, perhaps timing of the different
machines triggers the bug, perhaps running out of memory, perhaps
LabVIEW is corrupted on one machine.... But I don't think changing all
your code to use globals would solve the real problem. Actually, saying that I wonder about problem of synchronisation. I know from Visual C++ that this kind of error happens if two process try to access the same control at the same time. This is typically an error changing from a computer to an other, and mutex or semaphore are the way to deal nicely with that. But does labview contains already such a securisation? If so, the global variable point on a single object and can "fell" the semaphore/mutex. But passing make a copy that will likely have two different semaphore/mutex but will point to a single control! Do someone know if I'm wrong in this idea or not?
Thanks

ORA-03113 when using references in xmltype

I get an 'ORA-03113: end-of-file on communication channel' if I try to use references in an xml schema on multiple levels. You can find an example below.
Setup:
exec dbms_session.reset_package;
declare
l_schema varchar2(32767) :='<?xml version="1.0" encoding="utf-8"?>
<xs:schema attributeFormDefault="qualified"
elementFormDefault="qualified"
version="1.0"
xmlns:xdb="http://xmlns.oracle.com/xdb"
xdb:storeVarrayAsTable="false"
xmlns:xs="http://www.w3.org/2001/XMLSchema">
<xs:complexType name="T_NODE" xdb:SQLType="T_NODE">
<xs:sequence>
<xs:element name="NODE" type="T_NODE"/>
<xs:element name="LEVEL" type="xs:string"/>
</xs:sequence>
</xs:complexType>
<xs:element name="NODE" type="T_NODE" xdb:defaultTable="T_NODE_REF"/>
</xs:schema>';
l_xml xmltype;
l_url varchar2(1000) := 'NodeTest.xsd';
begin
begin
execute immediate 'drop table T_NODE_REF';
exception
when others then null;
end;
begin
execute immediate 'drop table T_NODE_XML';
exception
when others then null;
end;
begin
dbms_xmlschema.deleteschema(
schemaurl => l_url
,delete_option => dbms_xmlschema.delete_cascade_force
exception
when others then null;
end;
l_xml := xmltype.createxml(l_schema);
dbms_xmlschema.registerschema (schemaurl => l_url
,schemadoc => l_xml
,gentables => true
execute immediate 'CREATE TABLE T_NODE_XML OF XMLTYPE XMLTYPE STORE AS OBJECT RELATIONAL XMLSCHEMA "' || l_url || '" ELEMENT "NODE"';
end;
The script:
declare
l_reference ref xmltype;
function rec(
i_level pls_integer
) return ref xmltype
is
l_url varchar2(1000) := 'NodeTest.xsd';
l_ref ref xmltype := null;
l_new_ref ref xmltype := null;
l_node t_node;
l_level pls_integer;
l_node_xml xmltype;
begin
if i_level > 0 then
l_level := i_level - 1;
l_ref := rec(l_level);
else
l_ref := null;
end if;
l_node := new t_node(null, l_ref, i_level);
l_node_xml := xmltype.createxml(xmlData => l_node, schema => l_url, element => 'NODE', validated => 1);
dbms_output.put_line(dbms_lob.substr(l_node_xml.getClobVal, amount => 200, offset => 1));
insert into T_NODE_XML t values(l_node_xml) returning ref(t) into l_new_ref;
commit;
return l_new_ref;
end;
begin
l_reference := rec(1);
end;
Any idea how to overcome this issue?
Thanks in advance

Your previous reply never said anything about commenting out dbms_output so how was I supposed to see the variations you were trying?<br><br>
You need to continue this discussion with Oracle as to why you getting the specific ORA-0600 that you are. This assumes you have a valid support contract. You are getting an internal Oracle error. I'm not Oracle nor do I know the inner workings of their system. If not, Google and maybe the XML DB forum might be able to help you with this issue. They will want to know your version (4 digits) and may question your hammer use of .delete_cascade_force when deleting the schema. This should only be a last resort to use that level I know. It's probably not related to your issue but may come up.

DMEE: Error in conditions for node Invcr: reference ID IDTP is not permitte

Hi Friends ,
I have problem with nodes in DMEE .
When child node is from a Exit funtion moduel , not from the Payment FPAYH/FPAYP/HX structures, is empty . I dont want the parent node to be displayed .
EX:
<INVCR> -
Should not display when node2 is empty
          <ID> -
empty/or values from Userexit.
I am using No mapping for parent nodes.
trying to give Reference ID for childnode and using it in parent node conditions and i guess using a lower level REFId is not permitted . My DMEE is giving following error.
Error in conditions for node Invcr: reference ID IDTP is not permitted
Message no. DMEE_ABA305
Diagnosis
You have specified type 3 in the conditions, meaning that the argument is a reference ID. Your entry in the argument field, however, is not an existing reference ID.
I did define the Reference NODE ID ,ID

Hello Srikanth,
The problem is with the semantics of the code you are writing.
Refer to the following code to get Account ID from the value node:
data: lv_account type string.
    lv_account = lv_value_node->get_property_as_string( iv_attr_name = 'ACCOUNT_ID' ).
or
data: lv_account type bu_partner.
CALL METHOD lr_value_node->get_property_as_value
    EXPORTING
      iv_attr_name = 'ACCOUNT_ID'                            "#EC NOTEXT
    IMPORTING
      ev_result    = lv_account.
I hope this helps.
Thanks
Vishal

HELP: Assembly Initialization Error: File not found. Something weird about the used reference

I moved one project from solution A to solution B using TFS move (with uncommitted changes). I got compile time errors since the references were not found. There were 2 references used. I removed and added them again and compile time errors were fixed. I
ran a test case and I get file not found exception.
As per the reference properties, the Path of used reference is C:_src\HIP\Out\Debug\CIP\Bin\amd64\DataPipe\MaterializedEntityManagerTest\Caradigm.Platform.Pipeline.MaterializedEntityManager.dll
As per the error below, I think it is looking for this, file:///C:/_src/HIP/Out/Debug/CIP/Test/amd64/DataPipe/MaterializedEntityManager
Note that it is looking for it in the folder structure - CIP\Test instead of
CIP\Bin. This file does not exist in the Test folder. ANyways I decided to copy to the test folder and give it a shot, the folder being...
C:_src\HIP\Out\Debug\CIP\test\amd64\DataPipe\MaterializedEntityManagerTest\Caradigm.Platform.Pipeline.MaterializedEntityManager.dll. Unexpectedly, I still get the same error.
I'm now going crazy with this error. What am i missing???
Test Name: CdcEnableWithNoTableTest
Test FullName: Caradigm.Platform.Pipeline.MaterializedEntityManager.Test.DefiningQueryParserTests.CdcEnableWithNoTableTest
Test Source: c:\_src\HIP\prod\test\DataPipeline\MaterializationTest\EntityViewManagerTest\DefiningQueryParserTests.cs : line 15
Test Outcome: Failed
Test Duration: 0:00:00
Result Message:
Assembly Initialization method Caradigm.Platform.Pipeline.MaterializedEntityManager.Test.UnitTestInitializer.AssemblyInitialize threw exception. System.IO.FileNotFoundException: System.IO.FileNotFoundException: Could not load file or assembly 'Caradigm.Platform.Pipeline.MaterializedEntityManager, Version=3.0.0.0, Culture=neutral, PublicKeyToken=a03c60abe3a7c396' or one of its dependencies. The system cannot find the file specified.=== Pre-bind state information ===
LOG: DisplayName = Caradigm.Platform.Pipeline.MaterializedEntityManager, Version=3.0.0.0, Culture=neutral, PublicKeyToken=a03c60abe3a7c396
(Fully-specified)
LOG: Appbase = file:///C:/_src/HIP/Out/Debug/CIP/Test/amd64/DataPipe/MaterializedEntityManager
LOG: Initial PrivatePath = NULL
Calling assembly : Caradigm.Platform.Pipeline.MaterializedEntityManager.Test, Version=3.0.0.0, Culture=neutral, PublicKeyToken=a03c60abe3a7c396.
===
LOG: This bind starts in default load context.
LOG: Using application configuration file: C:\PROGRAM FILES (X86)\MICROSOFT VISUAL STUDIO 12.0\COMMON7\IDE\COMMONEXTENSIONS\MICROSOFT\TESTWINDOW\vstest.executionengine.x86.exe.Config
LOG: Using host configuration file:
LOG: Using machine configuration file from C:\Windows\Microsoft.NET\Framework\v4.0.30319\config\machine.config.
LOG: Post-policy reference: Caradigm.Platform.Pipeline.MaterializedEntityManager, Version=3.0.0.0, Culture=neutral, PublicKeyToken=a03c60abe3a7c396
LOG: Attempting download of new URL file:///C:/_src/HIP/Out/Debug/CIP/Test/amd64/DataPipe/MaterializedEntityManager/Caradigm.Platform.Pipeline.MaterializedEntityManager.DLL.
LOG: Attempting download of new URL file:///C:/_src/HIP/Out/Debug/CIP/Test/amd64/DataPipe/MaterializedEntityManager/Caradigm.Platform.Pipeline.MaterializedEntityManager/Caradigm.Platform.Pipeline.MaterializedEntityManager.DLL.
LOG: Attempting download of new URL file:///C:/_src/HIP/Out/Debug/CIP/Test/amd64/DataPipe/MaterializedEntityManager/Caradigm.Platform.Pipeline.MaterializedEntityManager.EXE.
LOG: Attempting download of new URL file:///C:/_src/HIP/Out/Debug/CIP/Test/amd64/DataPipe/MaterializedEntityManager/Caradigm.Platform.Pipeline.MaterializedEntityManager/Caradigm.Platform.Pipeline.MaterializedEntityManager.EXE.
. Aborting test execution.
Result StackTrace: at Caradigm.Platform.Pipeline.MaterializedEntityManager.Test.UnitTestInitializer.AssemblyInitialize(TestContext context)

Hi,
Maybe TFS forum is the correct forum for your question, but I'm not sure. I move your question to [where is the forum for...] where the moderators may direct you to the right place.
Thanks for your understanding.
We are trying to better understand customer views on social support experience, so your participation in this interview project would be greatly appreciated if you have time. Thanks for helping make community forums a great place.
Click
HERE to participate the survey.

Restrict Item Category Item Creation using Reference Only

Hi All
Here is the scenario, I want "Restrict Item Category Item Creation using Reference Only"
a.Retrieve document number VBELN from sales order header table VBAK for the current order. Check if the sales order is of type ZAB referencing field AUART in table VBAK.
note : Any changes to existing sales order "ZAB" will be performed in thesame sales order type(ZAB) in VA02 transaction.
b.If step a is passed, check internal table structure for sales order item level as XVBAP-PSTYV for possible item category values of 'ZDEF' for the entered line item and document number (XVBAP-VBELN).
c.If the cancel/change item category values are found on the line item, check internal table structure for document flow (XVBFA) if the cancel/change item category was created as reference:
i.Check if entry exists in XVBFA for the preceding document number field VBELV with value equal to value in the subsequent document number field VBELN. This value must equal the current sales document number VBELN in table VBAK.
ii.The above check must be done in conjunction with the following check:
1.Check if entry exists in XVBFA for the preceding document type field VBTYP_V with value C equals subsequent document type field VBTYP_N with value of C.
d.Once the above checks are passed, collect the item number from internal table XVBAP (Field: POSNR) for the change/cancel item category line item added to the sales order.
e.Check if the item number retrieved in the previous step exists in table VBAP (Field: POSNR) with an item category that is not part of the list of cancel/change item category defined in step b.
f. Check if the item number collected in the previous step exists in the subsequent item number (Field : POSNN) in internal table XVBFA for the row that passed checks in steps b and c.
g.If item number exists, check if this subsequent item number field equals the preceding item number field value (Field: POSNV) in table XVBFA.
h.If step g fails, generate an error message stating that the user needs to the create the cancel/change item category line item with reference to the original line item and do not allow the user to proceed with the transaction.
i.If step g succeeds, allow the user to proceed with the transaction.
can any one send me the logic for this scenario.
Rgds
Chinna

Hi Chinna,
Please use BADI "BADI_SD_SALES_ITEM" to achieve your requirement..
Let me know if you have further questions..
BR
Rakesh

Get the pc name with domain name and add it to my properties file using commands

i want to get the pc name with domain name and add it to my properties file using powershell .
sid

function Get-Environment{
[environment]|Get-Member -Static -MemberType Properties |
ForEach-Object{
if($_.Name -ne 'StackTrace'){
$v=[scriptblock]::Create("[environment]::$($_.Name)").Invoke()
New-Object PsCustomObject -Property ([ordered]@{Name=$_.Name;Value=$v[0]})
Get-Environment
Get-Environment | Out-String | Out-File environment.txt
¯\_(ツ)_/¯

Can't convert string element to XML node using XSL

We have a source XML with a node that contains another XML as string. Like this:
"<imp1:payload><?xml version = '1.0' encoding = 'ISO-8859-15' standalone = 'no'?>
<!DOCTYPE PROCESS_PO_007 SYSTEM "003_process_po_007.dtd"><PROCESS_PO_007><CNTROLAREA>" etc
And we have a target XML that has the schema inside the string in the source file, like this:
"<PROCESS_PO_007>
<CNTROLAREA>"....etc.
How can we "parse" the string to a node using an XSL transformation file?

Hi,
Can you tell me which code are you using currently for transferrring the data? It might help me to figure out what your problem is.

Retrieve xml attribute value of nth xml node using xpath query

I have an xml with following stucture...
<xml>
<header>
<DocumentReference OrderId="order001">
<DocumentReference OrderId="order002">
<DocumentReference OrderId="order003">
I have to loop through this xml and retrieve the orderId values inside Biztalk orchestration.
In the expression shape, I get the count of 'DocumentReference' nodes using an xpath query and then
Added a loopshape to make sure it loops thru all nodes
Loop condition:   n<=nodeCount     (where n is an integer variable, n=0 to begin with, incremented by 1 thru each loop, nodeCount is # of DocumentReference nodes)
I try retrieve to the orderId in the following expression shape using the below xpath query
xpathQuery = System.String.Format("//*[local-name()='OrderReference'][{0}]/@orderID)",n);
sOrderId = xpath(MsgSingleInvoice,xpathQuery);
And I get the following exception:
Inner exception: '//*[local-name()='OrderReference'][1]/@orderID)' has an invalid token.
Exception type: XPathException
Appreciate any help!   thanks!

Thanks for the quick response. I got rid of it.
And I see a different error:
Inner exception: Specified cast is not valid. Exception type: InvalidCastException
Source: Microsoft.XLANGs.Engine
Target Site: System.Object XPathLoad(Microsoft.XLANGs.Core.Part, System.String, System.Type)
Since variable 'n' is of integer type, I suspected it and changed it to n.ToString() and tested again and still see the same error.

How to use "Reference Structure" setting in analysis grid item

Hello expert,
in Bex analyzer, how to use "Reference Structure" setting in analysis grid item by example?
Many thanks,

The variable needs assigned a value, that's why you're getting prompted. When you execute the statement, it's not executing the variable and exec lines.
Having script output available in a grid would be an enhancement request.

How to use Reference type of Data Element

Hi guys, is there anyone could give me a trace how to use reference type of data element.
More details i'm going to reach is:
I create 2 tables:
eq.
1. table ZFIRST has field X with data element ZFX (Data element i declared).
2. table ZSECOND has field Y.
Here at field Y (second table) I'm going to declare a new data element say it ZFY, but in ZFY I'm going to use the data element as i declared before (ZFX). Is it possible if I do it using reference type data element (SE11)?
I already did this way, but I got error :
Field Y: Reference ZFX to class w/o interface cannot be used in DB table ZSECOND
What does it mean?. Did I miss something about using reference data element type?.
This error occurs when I activate ZSECOND table. However in creating ZFY (reference) to data element ZFX, there is no error occur.
The point is I need to RE-declared existing data element and ot put existing data element(ZFX) to my current table (ZSECOND).
Any helpful will be highly appreciated.
Thanks.
Edited by: dinivian dondi on Nov 4, 2010 8:30 AM

Field Y: Reference ZFX to class w/o interface cannot be used in DB table ZSECOND
What does it mean?. Did I miss something about using reference data element type?.
Apparently system doesn't allow you to type a transparent table field with deep type. This refers to references and tables types as components. The RDBMS (Relational DB Management System) cannot interpret this componenets correclty and mapp them to TABLEs in DB.
So I am affraid you won't be able to type table component with reference to other data element.
The point is I need to RE-declared existing data element and ot put existing data element(ZFX) to my current table (ZSECOND).
Sorry but I don't get it, could you please explain this more clearly. Maybe then we can think of some workaround for you.
Regards
Marcin

Propert nodes using references in subVIs

Similar Messages

Maybe you are looking for