Dan,
After taking a look at the code you posted, I am a little unsure as to how the DataGrid should properly be populated. Would it be possible to provide some comments for the code that you have modified? Was the code you downloaded functioning correctly before your modifications? If we could see a basic example of a working DataGrid, we should then be able to get up and running with your application. Additionally, the .NET container always appears visible when run on my computer. Under what conditions does this control appear invisible for you?
.NET objects are actually Microsoft objects – containers simply allow us to use them in LabVIEW. I would suggest reading through the Microsoft MSDN Library concerning the
DataGrid object. This should detail all the available methods and properties accessible to the .NET object through LabVIEW (or any .NET programming language). This should give you an idea on how to populate and sort the table as you need. I hope this is useful for you! Thanks,
Mike