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Shaun Hayward

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About Shaun Hayward

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  • Birthday 07/21/1982

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    Boston, MA, USA

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  • Version
    LabVIEW 2013
  • Since
    2003

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  1. I think you'll definitely need to write your own parser / serializer as STIL is definitely not JSON.
  2. I use that library very successfully with our embedded devices, for both SSH console access and also for SCP-ing files. The only issue I had (at the time) was needing to recompile it for the correct CLR to match our version of LabVIEW.
  3. +1 for NativeWindow - that property is a godsend!
  4. Could you not just create a static dispatch VI in your parent class that gets used in the ACBR node, and that VI then simply contains a single dynamic dispatch VI - the VI you originally wanted to call from the ACBR node?
  5. That is an interesting idea... I would imagine that being able to work in place could definitely offer better performance for large / nested JSON objects. From the poking around I did, the sorting that takes place is an implicit sort when adding the JSON elements as variant attributes to a containing element. They end up getting stored alphabetically (in the variant attribute tree) so when "Get all attributes" is done in the "flattening to JSON string" VI, the objects come out in alphabetical order. The workaround I threw together kept a list of names so that instead of "get all attri
  6. Sorry for the late reply: I thought I had thread subscription turned on but no emails came up... James, your right in your assessment - this was a very simple implementation that just build a string array of names when the object tree gets built. This was mostly because I didnt want to just throw a request (ie potential work) at someone without at least offering a possible "solution". Using the "Large Test Case.vi" from the source didn't seem to show much of a performance penalty (see below) but if this is a deal breaker could we look into a property for JSON Value.lvclass for "Maintai
  7. Siphos make some pretty nice Ethernet testing equipment: http://www.siphos.net/Products/
  8. I made the modification I suggested to a fork of this library (https://bitbucket.org/shew82/json-api-labview/) . This change, just changes JSON Object.lvclass, and I didnt touch the VIPB configuration file, etc. I also don't have LabVIEW 2011 available, so the changed code is in LabVIEW 2013. Let me know if you want me to do a pull request, etc.
  9. Hi Guys, I'm noticing an issue with this library and I'm not sure the best way to work around it: Problem: For better or worse, the API I'm communicating with needs JSON objects to be in a correct order in addition to correctly named. i.e. {"B":1, "C":2, "A":3} is NOT equal to {"A":3,"B":1,"C":2}. However, when creating the JSON object using "Set from JSON string.vi" the order seems to be getting lost. Any subsequent calls to "Get as JSON string.vi" always seem to end with the elements getting returned in alphabetical order (as opposed to the original structure order). In my example,
  10. Alternatively, if you dont have the command line tools installed (or don't want to use them ), you cou could use TortoiseSVN's COM interface (http://tortoisesvn.net/docs/release/TortoiseSVN_en/tsvn-subwcrev-com-interface.html)
  11. Crestron is looking for a talented individual to fill the position of Test Engineer III at our corporate headquarters in Rockleigh NJ (07647). This position will be part of our Test Framework Development team, and will develop advanced production test platforms using National Instruments’ LabVIEW, TestStand and Visual Studio C#. This role will focus heavily on creating the underlying structure for Crestron’s automated test platforms and on designing modular test systems that can be adapted to a wide variety of applications and products. The systems that you produce will be used by downstream e
  12. I was struggling to explain Notifiers to a C# developer the other day and it got me thinking... Do any of you know if there is a C# construct / class / whatever that offers the equivalent functionality of a LabVIEW Notifier?
  13. You can change the Value from a read to a right by right clicking on the property and choosing to "Change All to Write" or "Change To Write" from the pop-up menu. However, if your literaly just setting the value, right clicking the terminal and creating a local variable instead of the value property will create a faster setup (local variables are much faster than "Value" property nodes)
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