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.net callback event list is empty

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Hi, I can't get the Events dropdown list to populate in the .NET Reg Events Callback node.

 

My ultimate aim is to connect to my own .NET assembly, but as a basic test I tried to replicate the example : Callback VI

 

The downloaded VI runs fine, but If I try to construct the VI myself from scratch, I run into issues.

 

Everything is fine until I try to pulldown the list of available Events in the Reg Events Callback node. A "No Events" tooltip box is all I get.

 

Properties and methods all populate fine in the relevant nodes.

 

System : Labview Version 2012. Tried on Windows 7 & Windows 8, two different PCs, with and without VS2005 installed. Always the same result.

 

Any suggestions welcome. Cheers.


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