Re: Variable amount of Buttons in Mathematica

*To*: mathgroup at smc.vnet.net*Subject*: [mg92769] Re: Variable amount of Buttons in Mathematica*From*: Jean-Marc Gulliet <jeanmarc.gulliet at gmail.com>*Date*: Mon, 13 Oct 2008 06:16:10 -0400 (EDT)*Organization*: The Open University, Milton Keynes, UK*References*: <gcscrf$8l3$1@smc.vnet.net>

SDY wrote: > I'm trying to write a function that will create a variable number of buttons (based on some input) and relate each button to a function call with a unique parameter value. For example: > > array = {1, 2, 3, 4, 5}; > Column[{Row[ > Table[Button[array[[n]], Print[n], ImageSize -> {50, 50}], {n, 1,Length[array], 1}]]}] > > Gives me five buttons, labeled 1-5, but each prints 'n' when clicked on. > How would I change this to print the value of n? > > My best guess at this point is that there is a scoping issue with n, but I don't have enough Mathematica experience to know how to assign static values... When creating a list of buttons, you can use the scooping construct *With[]* to ensure the evaluation of n: array = {1, 2, 3, 4, 5}; Row[Table[ With[{n = n}, Button[array[[n]], Print[array[[n]]], ImageSize -> {50, 50}]], {n, Length[array]}]] Regards, -- Jean-Marc