LabVIEW .NET interop assembly target framework

[pawhan11]

I am trying to build Labview library and call it from .NET application.

My app is build in .NET 4.8 but labview builds my library to 3.5. Is there a way to change it?

 

[Bobillier]

Hi pawhan11

Few days ago I have experiment one similar problem about exe and a .NET compoment (look here). I have solved it by adding a small file before my exe to indicate what assembly runtime version using.

I'm not sure than you can use similar thing to solve your problem (LV11 refer natively to  .NET 3.5), but perhaspse that can run. I have see something about that here

Step 1: create a texte file named Labview.exe.config

Step2: Place the text below in it

<?xml version ="1.0"?>
<configuration>
   <startup useLegacyV2RuntimeActivationPolicy="true">
      <supportedRuntime version="v4.8"/>
   </startup>
</configuration>

Take care about supportedRuntime version number because  it must be corresponding to your .NET constructor.

Step3 : Save this file in same directory than your Labview version, and restart LabVIEW

Step4 : Rebuild your assembly.

Edited August 25, 2022 by Bobillier

[pawhan11]

Thanks for comment. I have tried this approach but outcome is the same. Tried full version names like v4.8.4084.0 etc