String Increment through Do While

I am using this code, this is a help from this forum.

My requirements are

  • put one entry on the system e.g 141921050001.01 then proceed for the further action

  • if that element exist(Trying to avoid and make the string unique) appear again then it will go for 141921050001.02 and so on my following the same method.

  • it will break when the next steps are successful and that element exist not appearing anymore

give a try on on conversion ping pong double-string to handle decimal roundings

@ppr can you please share the design in detail please?