.NET Framework assembly LabVIEW NXG

[Muaadh7]

Hello,

I have a problem and I ask for your help.

I would like to use a NuGet *.dll (Microsoft.Data.SqlClient.dll; https://www.nuget.org/packages/Microsoft.Data.SqlClient/1.1.3).
I have installed the *.dll on my computer. But I can't find or select the *.dll in the .NET assembly of NXG (see image 1).

On classic LabVIEW I can see or use that (see image 2).

Now my question: Is there a way to add the *.dll to LabVIEW NXG ?.
Can you please help me with this?

Thanks for your help.

Muaadh

[nottilie]

I am not 100% sure but I think I have read that you have to add the .NET dll to the GAC otherwise it is not working with NXG.

You can try it by using this documentation.

https://docs.microsoft.com/en-us/dotnet/framework/app-domains/install-assembly-into-gac

[S.Stock]

They should really concider adding a "browse..." button for selecting .dll files the same way as for LabVIEW 2020, so you don't have to know how to add files to the GAC.
I have myself now used alot of time trying to add a .dll file to GAC, both with Powershell and Developer Command Prompt (gacutil), without any success, so I gave up and went back to LabVIEW 2020 😞!

[minusmagis]

Hey, 

I had the same problem and following the suggestions from nottilie i ended up being able to add the .dll files to the GAC. Here's how I did it:

I installed the community version of Visual Studio 2019 (https://visualstudio.microsoft.com/es/downloads/)

Then I run (As Admin!!) the Developer Command Prompt for VS 2019 (it seems to be different than the command prompt).

Link on how to find it: (https://docs.microsoft.com/en-us/dotnet/framework/tools/developer-command-prompt-for-vs).

Then inside the cmd you change the directory to the directory where you have your .dll files (cd C:\".DLL DIRECTORY HERE")

And in there you add each .dll file by typing: gacutil /i "The_dll_File_you_want_to_add.dll

And that is it 🙂 it worked for me and NXG now recognizes the .dll in the .net interface.

(in case you have a lot of .dll like you can copy them all on an excel with a newline character at the end and paste the whole thing on the cmd and it will execute each and every operation separately)

PS: this is the python script I used to extract all the names of the files:

import os

dir_list = os.listdir('C:\Program Files\Thorlabs\Kinesis')

for item in dir_list:
    if '.dll' in item:
        print('gacutil /i '+str(item))

Cheers 🙂

[wftmac]

Hello，

Is the dll generated by labview? I use sn.exe to achieve a snk file, and insert it when I use labview to generate a net assembly. But when I use gacutil.exe to register it to GAC, error says "Failed to verify strong name signature". How to solve it?

[minusmagis]

Hi,

In my case the Dll files are provided by the manufacturer, so I cannot help with that.

Best