data access child LabVIEW class

Similar Questions

• Private class data accessible parent in the child's class?

  Hello!

  I thought this would be obvious, but my search thing fails to me.  I hope that someone would be kind enough to answer my question LVOOP of beginner.

  I have a a parent class.  This parent class contains a set of private class data.  I have Setup all the data accessor methods.  I create a child class that has functions that need to access the data stored in its parent category.  His legacy is defined, but when I try to separate data from class all that I can't do are what is configured in the cluster of data of the child class.

  I watched a video and it seemed that the DataSet magically appeared and is accessible via the methods of children.  What Miss me?

  Thanks for the input!

  -nic

  To access the data of the parent in the child's class class, you must use the accessor of reading methods you created for the parent class get the parent class data (you must use the same accessor methods in the methods of the child because all the data of the class is private in LabVIEW). I hope this helps.

  -RW

• Why the parent class does not report data for child in LVOOP class?

  Attached is a practical program that I wrote to learn about the legacy with LVOOP.

  I have the impression of OOP is a Parent class describes the type of object.  Then the children inherent description of the parent.  The child may also have additional qualities, but it still contains the description of the parent.  If a child does not have a VI bearing the same name as the parent and the parent VI will be loaded and executed.

  My questions:

  (1) why does the Parent.lvclass:Read.vi not report 'Child' in the channel indicator when the child write VI has been sent?

  2) matches the data of the child, do not at all seen by the parent company even when it has the same definition (that's the String)?  I understand that the Parent do not know anything about the unique child elements, but I think we should know about the common themes which inherited the child.

  Here is my sample code:

  

  These are two different sets of data. The parent class has a data set containing the string, the class of the child also has a data set containing the string, but both of these channels are separated.

  This can be made apparent, by changing the names of the channels based on their respective categories:

  

  What you want is for your children, class VI write to access the data of the parent class. You can do this with a simple data VI member access in VI of the child:

  

• using the structure of the event in the LabVIEW classes

  Hello

  I'm new in the use of LabVIEW classes, so don't know much how I can use them.

  In my main program, I have clusters with five elements in each. The elements are controls two States and in some groups, there are three States controls. The user will press the buttons (controls), and different things will happen. In my first program were I not using classes, I had a structure of the event and the controls were cases of event in the structure.

  Is it possible to somehow use an event of cases in one of the methods that is created in the classes, so that say, that's not in the main program?

  I have attached two photos: I wanted to have a structure of the event in servoTouchEvent (in left.tri.lvclass) who is a child.

  Let me know if my explanation is not clear.

  Grateful for the help!

  Hello

  Yes, you can have a structure of the event in a Subvi rather in your main VI of top-level UI. The trick is to use the 'Save for events' and passing in references to orders that you want to have the event trigger structure for. The refnum output since the function is entered in the terminal of dynamic event of the structure of the event who could live in a Subvi. You can add instances of event where you will see these control events as dynamic events then you can do something with. These excerpts from shows all the code in a simple diagram, but the stuff in the structure of disable diagram could easily transformed into a Subvi:

   

  All this can be done without classes. What will buy classes you include the ability to encapsulate your screws and also perform different code based on what object on the hierarchy of the parent-child classes is on a wire. If the behavior of your code is different between 2-3 State and controls (which I do not know what state controls 3 you are referring), you can take advantage of the classes.

• Data Access Manager and the views HTML

  Can I use Data Access Manager with user interface written for html-bridge? Or is it just a flex library?

  Data Access Manager is a Flex API, so it is not available via the HTML bridge, but you can make calls to application data using rest API as shown in our samples.

  The SDK HTML samples show how to retrieve properties of the object.  This can be extended to more complex queries of your choice.  This idea is to pass parameters but still calls and then bring them to applications in the java class DataAccessController with QueryUtil and DataService

  I can provide more examples later based on specific requests.

• .vi files access using Labview Communication Suite

  I can't access files labview on Comm Design?

  What I see, it's got all the features I could need to program a USRP I have other wise to do with Labview.  Why .vi files are not supported as a result of cmm?

  2. If I want to design a comm suite system is enough or should I still buy Labview package?

  You can download the VI here conversion tool:http://www.ni.com/gate/gb/GB_INFOCODECONVLV/US

• create a definition of ownership vi in LabVIEW class

  Hello forum,.

  I am creating a VI within a property definition file in a class of LabVIEW and I always get the following for the VI error message that is created: component connector invalid accessor VI. I have a 4x2x2x4 but displays pane always error. I go in the property definition folder, right click and select new VI. The new VI is created but with the above error.

  I have now that before I was able to do it before and the VI has an icon of type box (as an icon of labview class) but can't do it anymore. Don't know what has changed.

  I'm using Labview 2013 32bits.

  Thank you for your time.

  
  

• Using gateway requirements with LabVIEW classes

  Does anyone know how to get the gateway requirements NOR read the coverage information of documentation contained in a class of LabVIEW (.lvclass)?

  Requirements gateway seems to load the content of the fine documentation of screws, controls, .llb, .lvlib, .lvproj etc., but not .lvclass? My LabVIEW crash out when I try to bridge point requirements to a project with .lvclass files!

  If this cannot be done then it is a great way to add coverage of the needs information (you know, the field "covers: ID") in the properties of the class, or something close to class perhaps, this gateway requirements can read?

  Thoric-

  I believe that gateway requirements should be able to trace of LabVIEW Classes also covers long classes are added to a LabVIEW project and requirements gateway is configured in order to study the LabVIEW project. Here is a very primitive example that I restored from files in the directories of the prescriptions and example LabVIEW gateway.

  I hope this helps.

• All read old version data file in Labview 8.6 (waveform playback of file.vi)

  Hi, I have a big problem on the use of file.vi in LV8.6 reading waveform to play *.wmf files that were generated LV7.1 program.

  He often appears a message windows, refer to the attached picture file, because I use LV8.6 program to read a considerable number of such files,

  I can't afford all these windows message in my program, please tell me how to get rid of this message.

  Thank you very much

  Hello

  The type of waveform data is in LabVIEW 8.6 differs from the version 7.1, so this conversion is required. This knowledge base article solves the same error: Read Waveform files from old Versions of LabVIEW .

  To prevent the message from appearing, add silentDatalogConvert = true to the LabVIEW.ini file. It is located in the National Instruments\LabVIE 8.6 folder. I hope this helps!

• Have I not Microsoft Data Access Components 2.1 or above on my computer?

  I tried to download a Blackberry user Tools CD. Place the CD in the drive... An error message came up saying that I had to install Microsoft Data Access Components 2.1 or more.  How will I know if it is already on my computer... or if I have to install it?

  Don't have never had this problem before when you place a disc/program/CD in the drive.

  Help!

  Thanks, Lawana

  Hi Lawana,

  You can use the components Checker tool to check the version of Microsoft Data Access Components (MDAC) installed on your computer.

  How to check the version of MDAC?

  Hope the helps of information.
  Please post back and we do know.

• What data access component download Oracle 64-bit should I use?

  Hello

  I have Visual Studio 2013 and I would use the latest data access components Oracle with Entity Framework 6.  There are three 64-bit downloads.  What one do need me?

  • ODP.NET_Managed121020.zip
  • ODAC121021Xcopy_x64.zip
  • ODAC121021_x64.zip

  There is a notice if you want to use DTC Entity Framework features, then the 32-bit Oracle Developer Tools for Visual Studio download is necessary. Okay, I like to use the design-time features, but does that mean I can use the 64-bit versions?

  Thank you

  Peter

  If you use Visual Studio data designers (first model EF or first database, for example) or the Configuration Wizard of TableAdapter, you must install Oracle Developer Tools for Visual Studio, which is 32-bit. This "ODTwithODAC" package includes both the unmanaged driver 32 bit as the ODP.NET ODP.NET, successful pilot.

  So, the first thing you need to decide is if you use ODP.NET, managed driver or ODP.NET, pilot managed. If you choose to use the successful pilot, or the driver for 32-bit unmanaged (at least during development) you can stop here, you have no need of anything else. Note that the successful pilot lacks a few features that the unmanaged driver has. On the other hand, the successful pilot is much easier to deploy.

  If you want to target the ODP.NET 64 - bit unmanaged pilot at design time, you also need to install a 64 bit choice.  At the time of the design, for the sake of simplicity, I would just use the version of installer of Oracle based, not the version of Xcopy. Note that your installation of 32-bit and 64-bit facilities cannot reside in the same Oracle home (directory).

  Versions of Xcopy are there to facilitate the deployment with pilot unmanaged. It allows you to integrate the pilot unmanaged with your application.

  Coming shortly is the version of the successful pilot Nuget. However, this gets you any time tools design and use so it is limited to the work "coding only" or deployment scenarios.

• Definition of changing data Access set in R12

  Hello

  I tried to change DAS in R12. But Oracle does not allow to change or update. This is a standard feature, or miss me something?

  Thank you

  Andréanne

  Hi Manish,

  I have spoken here data access custom only sets.

  The trick is to change all of the access of the data in terms of accounting change or accounting is firstly delete the row and add a new.

  The foregoing is confirmed by Oracle and I tested it. However the header like calendar, costs, or access options set type cannot be changed once it is created. In this case a new complete DAS must be created.

  MOS reference - R12: how to change the definition for the data access sets? (Doc ID 1902182.1)

  Thank you

  Andréanne

• FDMEE VB API introduces not and gives "error of data access.

  Hello FDM gurus.

  While working with the FDMEE data integration tool, I had to test the capabilities of script VB to FDMEE and I tried the sample script of the ERPI Administrator's guide to copy a file from 1 place to another. Unfortunately the VB API does not work and generates an error "clsAppServerDM.fInitializeMainAPI: data access error." I don't know what am I missing here.

  Thank you in advance,

  VChakravarthy

  If you format this SQL query and you attempt to run in the SQL tool like SQL Developer, you can see how there is a SQL syntax error. There is a missing expression in the "BOLD"

  PV. LEVEL_VALUE =

    ),

  He expects something like pv. LEVEL_VALUE = 1005 so the SQL query should return the file application root.

  What I would do:

  -Update FDMEE to 11.1.2.3.510

  -Raise a SR with Oracle's Support.

  SELECT MERGE)

  SELECT pv. PROFILE_OPTION_VALUE

  AIF_PROFILE_OPTION_VALUES PV

  WHERE (PV. PROFILE_OPTION_NAME = p.PROFILE_OPTION_NAME)

  AND the pv. LEVEL_ID = 1010

  AND the pv. LEVEL_ID<=>

  AND the pv. LEVEL_VALUE = 1005

  ), (

  SELECT pv. PROFILE_OPTION_VALUE

  AIF_PROFILE_OPTION_VALUES PV

  WHERE (PV. PROFILE_OPTION_NAME = p.PROFILE_OPTION_NAME)

  AND the pv. LEVEL_ID = 1005

  AND the pv. LEVEL_ID<=>

  AND pv. LEVEL_VALUE =

    ), (

  SELECT pv. PROFILE_OPTION_VALUE

  AIF_PROFILE_OPTION_VALUES PV

  WHERE (PV. PROFILE_OPTION_NAME = p.PROFILE_OPTION_NAME)

  AND the pv. LEVEL_ID = 1000

  AND the pv. LEVEL_ID<=>

  ) PROFILE_OPTION_VALUE

  OF AIF_PROFILE_OPTIONS p

  WHERE p.PROFILE_OPTION_NAME = N 'PROFILE_APP_ROOT_DIRECTORY '.

• Unable to launch the Client Application-vCO and strange error - "exception on Hibernate JDBC data access...". "

  Hello

  We have an integrated vCO 5.5.1 installation with vCAC 6.0.1. The installation worked very well. Recently, we encountered a problem where we were not able to run that any associated workflow vCAC. The following error is thrown " " "JDBC Hibernate data access exception: SQLException for SQL [?]; State SQL [null]; error code [0]; Cannot release the connection; "the nested exception is org.hibernate.exception.GenericJDBCException: cannot release the connection in vCO. Do not know what is happening with the vCO. Can someone help me on this? It's urgent!

  
  

  To resolve this problem, all plug-ins have been recharged and services were restarted. That has not helped.

  There is another issue that is to appear after that. We cannot launch the vCO Client. Fig. 1

  We are not able to access the following URL: https://<vCO-IP-Address>: 8281 Fig. 2

  We are able to access the configuration of the vCO page (https://<vCO-IP-Address>: 8283) and the application of the vCO page (https://<vCO-IP-Address>: 5480)

  Your help would be appreciated. Thank you.

  -SK

  Not many details have been given to us. I just resolution. In the Configuration of the vCO page, under the network tab fair value 0.0.0.0 IP address and restart the Server Configurator vCO. Login back to the Configuration of the vCO page and restart the service. It worked like a charm! It is the resolution for the vCO is not opening in port 8281. Once this is done, even the vCO Client began to open.

  Come to the JDBC error, as soon as this problem has been resolved, did not appear the JDBC error. So, I'm not sure about the exact resolution for this.

  -SK

• level of data access rights

  Hello
  
  In your opinion, what is the best way to implement data access level rights?
  
  Before I used VPD to database 11g. Now, we decided to keep the aggregations in the cube OLAP (AWM 11 g) and I'm looking for the best solution limiting the user access rights to members of special dimension to different levels. For example, we must leave Office Manager to see only its data from team members (and do it dynamically, without having to grant the role of severl hundreds of managers separately), or let product manager see only 3 categories of products.
  
  I am browsing OLAP forum for awhile, most of old son means AW_ATTACH / PERMIT_READ / AUTOGO. Are there other options?

  There are two mechanisms available to control that can see the data by user: cube or dimension according to the strategies of security and private virtual database (DPV). Each have their own forces. Many organizations use a combination of the two.

  Cube security policies allow you to grant access (SELECT, INSERT, UPDATE, DELETE) to a database user or role. You describe what dimension members a user has access. For example, Europe and all descendants. If the security policy is applied to a dimension, that policy is applied on all cubes that use the dimension. If cube security if applied in the context of a policy, the policy is limited to this cube.

  Cube security policies:

  * Are 'hermetic', because they apply to all access methods (SQL querying the views of dimension and cube, SQL, OLAP_TABLE and CUBE_TABLE, OLAP DML, PL/SQL, queries etc.).
  * Are convenient. Apply a policy to a single dimension, and it applies to all cubes. It is very easy to express security policies by selecting the members or the use of hierarchical expressions in Analytic Workspace Manager.
  * Are limited to users and roles, so the applicability may be limited to certain use cases.

  Virtual private database policies are applied to views of dimension, hierarchy and cube. These views using OLAP is not different from any other table or view.

  MEV:

  * Applies only to the objects on which you apply a policy (for example, dimension, hierarchy, and cube views). If you need to make the hermetic policy, you should stop other access methods. For example, revoke execute on DBMS_AW, etc.
  * May take a bit more work to set up, but they offer some additional flexibility because you set the policy with PL/SQL. That's all what you can invent.
  * Can be applied beyond the users and roles.

  The key is that both are quite useful. Learn more about the two and use the feature that best matches your request.