topic Re: Include NI-VISA .NET API in Visual Studio 2017 project in Measurement Studio for .NET Languages

Include NI-VISA .NET API in Visual Studio 2017 project

Tevildo — Mon, 28 Jan 2019 16:41:44 GMT

This is a follow-up to the question asked here. How do I go about including a reference to the NI-VISA .NET API in my Visual Studio 2017 C# project? My earlier projects have used VisaNS.dll, but I gather from the documentation that this has been deprecated in favour of the .NET API.

It would be helpful if someone could go through in detail the steps involved in downloading the new API (if necessary) and adding a reference to it in a C# project. All the documentation I can find on this site still refers to VisaNS.dll.

Re: Include NI-VISA .NET API in Visual Studio 2017 project

Kelly_Chan — Wed, 30 Jan 2019 09:40:42 GMT

Hi,

You need to reference assembly "Ivi.Visa" to use the new "IVI-compliant NI-VISA .NET API". See here for more info and the differences between NI VISA .NET and VisaNS API.

Regards,

Kelly

Re: Include NI-VISA .NET API in Visual Studio 2017 project

Tevildo — Wed, 30 Jan 2019 12:37:43 GMT

Kelly, thanks. There appears to be a link missing from your message.

Re: Include NI-VISA .NET API in Visual Studio 2017 project

Kelly_Chan — Fri, 12 Jul 2024 13:41:40 GMT

My apologies, below is the link:

https://www.ni.com/en/support/documentation/supplemental/15/national-instruments-visa--net-library.html

Re: Include NI-VISA .NET API in Visual Studio 2017 project

Tevildo — Fri, 12 Jul 2024 13:42:21 GMT

Kelly, thanks.

That page links to this page, which states (in Part 3) that the NI-VISA .NET API is "included in the driver installer". I assume that this is the standard installer for NI-VISA. Where do I find the Ivi.Visa library, after installing NI-VISA? If I select ".NET 4.5 Development Support" in the NI-VISA installer, that just installs the old VisaNS.dll.

Re: Include NI-VISA .NET API in Visual Studio 2017 project

cymrieg — Wed, 30 Jan 2019 17:23:57 GMT

IVI.Visa dll is installed here: C:\Program Files (x86)\IVI Foundation\VISA\Microsoft.NET\Framework32\v2.0.50727\VISA.NET Shared Components 5.8.0

It should also show up in Visual Studio references see attachment.

Re: Include NI-VISA .NET API in Visual Studio 2017 project

Tevildo — Wed, 30 Jan 2019 17:52:38 GMT

cymrieg, thanks.

Perhaps I should have asked this question earlier - what's the first version of NI-VISA to include the .NET API? It may just be that I don't have a new enough version.

Re: Include NI-VISA .NET API in Visual Studio 2017 project

cymrieg — Fri, 12 Jul 2024 13:43:11 GMT

according to this 15.0: https://www.ni.com/pdf/manuals/374899j.html

Re: Include NI-VISA .NET API in Visual Studio 2017 project

Tevildo — Thu, 31 Jan 2019 14:51:11 GMT

cymreig, thanks. I have 15.5 installed on my system, so that isn't the problem. I'll try uninstalling VISA altogether and re-installing it.

Re: Include NI-VISA .NET API in Visual Studio 2017 project

Tevildo — Wed, 06 Feb 2019 18:58:16 GMT

Just a quick note to let everyone know that reinstalling NI-VISA fixed the problem. The required element is .NET 4.0 - 4.5.1 Development Support (IVI). For some reason, this didn't come up in the "Modify" menu from Control Panel.