Count save file

Hello guys.
Please help.
How to make count saving file & load file in list picker & max count item?
Example:
Maximal number item is 4.
I create item VOLVO,SCANIA,MAN,MERCEDES.
How to assing to individual item number & how to load each item in list picker & how to count max item?


Im worried with it three months. Thanks for answer.

Are the Items Input by user or from somewhere else ?

Items input user in app

Ok So Basically Items will be input by the user in the format
Bus,Car,Bike,Cycle
Right

Learn to work with lists

Taifun

Yes,user input items & items save to file

Ok so now after User input Use text block


Replace  all text:Textbox.text 
                 Segment: , 
                 Replacement: ","

Save all this to a variable let’s say M

Now Use CSV row to list command from list

CSV Row to list: join: " + M + " 

                 

Now u will get the list