totc(#LSEL) in notation?

[Das Goravani]

Hmm..

I thought the fact that I couldn’t find $selected popping up as valid from the points I thought it should show up on.. or likely candidates, was reason to ask a question, now I see otherwise..  thought I tried List.Line.$selected… weird.. glad to learn the line zero trick.. will check StudioTips next time for sure. 

I learned a lot right off this page you posted, thanks, I’ll be sure to get into it more.

Das

> On Oct 3, 2021, at 5:29 PM, Mike Matthews - Omnis <omnis at lineal.co.uk> wrote:
> 
> Hello Das,
> 
> The answer is provided in StudioTips.
> 
> Select the ‘Lusts’ tab, and then in the list, look at ‘Lists Notation’, and then on the subject line called $selected.
> 
> Here is the text from that page for you:
> 
> '$selected' tells you whether or not a line is currently selected. Using '$assign' you can select or deselect the line.
> 
>      # Is the current line selected?
>      Calculate bSelected as List.0.$selected
> 
>      # Replace zero with a specific line number to find the selection state any line in the list.
> 
>      # Set the current line to selected.
>      Do List.0.$selected.$assign(kTrue)
>      # Replace zero with a specific line number to set any line in the list.
> 
>      # Select all the lines in the list.
>      Do List.$search(kTrue)
> 
>      # Deselect all the lines in the list.
>      Do List.$search(kFalse)
> 
>      # You can invert selection for all lines in a list using $sendall.
>      Do List.$sendall($ref.$selected.$assign(not($ref.$selected())))
> 
>      # Total selected lines in the list.
>      Calculate %N as List.$totc(#LSEL)
> 
> See $search for some powerful ways to select or deselect list lines.
> 
> Mike Matthews
> 
> Lineal Software Solutions
> Commercial House, The Strand<x-apple-data-detectors://1/1> Barnstaple, Devon, EX31 1EU<x-apple-data-detectors://1/1>
> 
> omnis at lineal.co.uk<mailto:mike.matthews at lineal.co.uk>
> 
> www.lineal.co.uk<http://www.lineal.co.uk/>
> 
> www.sqlworks.co.uk<http://www.sqlworks.co/>
> 
> 
> 
> On 3 Oct 2021, at 19:43, Das Goravani <goravanis at gmail.com<mailto:goravanis at gmail.com>> wrote:
> 
> 
> I am wondering how to do
> 
> Set current list TheList
> Calculate #1 as totc(#LSEL)
> 
> I looked everywhere and could not find anything on the SELECTED state of a line in a list
> 
> How do you ask via notation if a line is selected.. I’m used to #LSEL which relies on the current list
> 
> On another note:
> 
> Is there a way to use the FOR.. loop to go to selected lines only..
> 
> I know how to do it another way, which is fine ie
> 
> Do TheList.$first(1)
> Repeat
>  Some code here
>  Do TheList.$next(,1)
> Until flag false
> 
> That’s how I go through selected lines in a list, is there a slicker way?
> 
> I don’t know why this works
> 
> For TheList.$line from 1 to TheList.$linecount step 1
> End for
> 
> I don’t know how it knows that it should go to the line indicated by the counter, or how you all figured that out as it’s not in the online help.. maybe it’s in the manual
> 
> It seems that the first value.  TheList.$line.   Is just a counter.. a field that tells it how many iterations to perform
> 
> Then again from “from” and “to” argument tells it how many to undertake
> 
> But the online docs say the first value is only a counter.. not a pointer or more active agent
> 
> Somehow when you put TheList.$line it knows it’s a list, and it goes from line to line making the current line current
> 
> It baffles me a bit. But I’m happy to just use it. Thought I’d ask.
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