CSV import data to channel in DIAdem

Hi,

Due to limitations of VBScript language, after much digging, I figured out how to write some channel data to what I will call an 'Excel CSV'. This contains CSV lists as a 'row' and newlines at the end to signify the next row. So it has rows and columns, but does not adhere to the official CSV rfc 4180 so I call it Excel CSV since this is how Excel exports a spreadsheet when saved as CSV.

1,2,3,4\n

1,2,3,4\n

etc

Achieved like so:

Dim oMyChannelList
Set oMyChannelList = Data.GetChannels("*regex-like*_otherID/someChannel_*")
'Call oMyChannelList.Add(Data.Root.ChannelGroups("SomeIDentifier") ' for all channels in group
Call DataFileSaveSel("<filename>" & RootPathName & tmpDir & outputFile & "</filename><delimiter>,</delimiter>", "CSV", oMyChannelList)
' https://forums.ni.com/t5/DIAdem/comma-as-decimal-separator/m-p/726321?query.id=146775#M8851
' ^^ This fails if tmp folder not created.. so we use names #VBSprobs

Which exports to CSV (with commas as delimiters).

The importing into channels has been a major headache, however.

I would like to create channels within a pre-existing channel group. After setting the channelgroup as oGroupChns = Data.Root.ChannelGroups("thenameofchannelgroup").Channels

 I have tried to import from CSV in the same format it was exported ('Excel CSV') using all of the following, separately, at one point:

'Call DataFileLoadSel(RootPathName & "\test\tmp\channels_out.csv", "CSV", ImportSelection, [ImportAction])
' ^^ test row to serve as a template with fields filled in
Call DataFileLoadSel(RootPathName & "\test\tmp\channels_out.csv", "CSV", oGroupChns & "/channelNum*", "Load")
 Call DataFileLoadSel(RootPathName & "\test\tmp\channels_out.csv", "CSV", "[12]/channelNum1", "Load")
Call DataFileLoadSel(RootPathName & "\test\tmp\channels_out.csv", "CSV", "*", "Load")
 Call DataFileLoad(RootPathName & "\test\tmp\stuff.csv", "CSV", "Load")
' ^^ A simple one line test CSV, works but creates its own group, and is test data not real data

It throws an error for an exception, but leaves no clues as to what the exception is for! Not even a name. I cannot seem to reproduce this today, it just doesn't import the data into the created channels: channelNum1 through 9. There are 9 columns in the csv to represent the 9 channels.

I poured over the forums and found some code similar to this:

Dim ch0: set ch0 = DataFileLoadSel(RootPathName & "\test\tmp\test.csv", "CSV", oGroupChns & "/testNum1", "Load")(1)
ch0.Name = "one"
ch0.properties("description").value = "OVER 9000!!!"
call DataFileSelDlg(RootPathName & "\test\tmp\channels_out.csv", "CSV") 
' ^^  Works! but not automatic enough

Call DataFileLoadSel(RootPathName & "\test\tmp\channels_out.csv", "CSV", "[12]/[354]", "Register")
 Dim oMyElementList
 Set oMyElementList = DataFileLoadSel(RootPathName & "\test\tmp\channels_out.csv", "CSV", , "Load")
call ChnSum(oMyElementList, "ChannelStuff")

The DataFileSelDlg, works exactly how I expect my code to work (except that it creates a new ChannelGroup) so I am confident my CSV is ok, but it requires user intervention which is not desireable. I have tried both Load and Register ImportActions, which both seem to do the same thing in the DataFileSelDlg when pushing appropriate buttons. I don't see very many examples of CSV importing out there, and I have been looking for many hours to accomplish a task which is trivial (< 5 min) in a better documented and supported language like Python. Any help is appreciated.

TL;DR

I want to read my CSV data into an existing channelgroup and none of the above that I've tried has worked, and root causing the source of error has been challenging.

 Edit: I have tried DataFileLoad, similar to above:

Call DataFileLoad(RootPathName & "\test\tmp\stuff.csv", "CSV", "Load")

but with my actual data and it works, but creates its own channelgroup. I can copy/rename these in a very convoluted way, but programatically.  I am seeking a more simple solution to read from CSV and write directly into the channels I have created in my oGroupChns ChannelGroup object.

Also, here is a useful link for attempts at error resolution in VBScript&colon;

http://zone.ni.com/reference/en-XX/help/370859J-01/vbs/general/vbs_onerror/

But was not useful in finding my unknown exception described earlier, and is nowhere near as specific or nice as Python.