shared variable .net refnum

[vikramps65]

Hi,

How can I pass .net references between different Vi's in the same project? Is there a way to store the reference in a shared variable?

[tyk007]

You could quite easily store the .NET reference in a global variable (Global VI) or FGV and then dish it out to whoever wants to use it.

Having said that I would encourage you to consider wrapping operations on the reference into some form of singleton to better manage atomic access to the reference in case it isn't entirely thread-safe.

[vikramps65]

Hi,

Sorry, I am new to labview and don't quite understand how I can easily do this. What exactly should be in the global vi that stores this refnum. I have attached pictures of my failed attempt at it.

Thanks for the quick response

[tyk007 · Accepted solution]

You're almost there. Change the type of the .NET reference on your Global VI by right-clicking on the control. This will allow you to hook up to your VI.

[vikramps65]

Well that is awfully easy. I feel foolish to even not try that.

Thanks for the help. Will start using it in another VI's and see if there is a problem. Thanks.