Posting NC code: file name expression bug

[wheezy11]

This just started today, but I generally use an expression in my file name, so that I would have the program name/number show up and then the program comment afterwards, just to save a bit of typing in the long run. Currently when I try to do anything more than manually typing a file name or one referenced data point, it just says <UNSPECIFIED> in the file name field and I have to manually change it. See attached screenshot, that SHOULD show up as "6565 - Test part". I can manually type that, I'm not using a character that isn't allowed in a file name, and again, this worked until just today. Any ideas anyone, or is this just a bug and I've got to wait for it to be resolved?

[Warmingup1953]

Perhaps use Underscore and no spaces.

[wheezy11]

Thanks for the suggestion. Doesn't work with underscores, doesn't work with a hyphen, no hyphen and a space, no space, or putting the variables on a different line from one another either unfortunately.

[viacheslav.shapilov · Accepted solution]

As I understand, you want to concatenate string parameters. It can be done using "+" operation:

nc_program_name + ' - ' + nc_program_comment

"-" assumes, that you are trying to subtract one number from another. It does not work for strings.

[wheezy11]

Thank you @viacheslav.shapilov ! I know I had set up the parameters right sometime in the past, but it cleared them so I didn't have the format right. That did it.

[aloKVDTB]

'O' + nc_program_name + '(' + nc_program_comment +')'