I am finishing my first program in Wolfram Mathematica 10 and if I have almost completed is essentially thanks to this valuable forum soon where I will try to help too.

Basically, now I have this problem: to make work a routine I used Button["Start", Module[{}, 'routine']]. Unfortunately, in this program you need to change the routine manually and then later by clicking on "Start" I can not consider the changes by not clicking "Shift + Enter". How can I do?

You're right MarcoB.

In reference to the following portion of my program:

enter image description here

when I edit the data and then click on "Risolvi" variable "sol" is not updated, but it remains in the old values. How can I fix without having to click "Shift + Enter"?

Equivalently, because the following code does not work if you click on the button ??

Button["Update", Module[{},
Function[cobj, SelectionMove[cobj, Cell, All];
   TakeWhile[Cells[CellStyle -> "Input"], # =!= EvaluationCell[] &];
  SelectionMove[EvaluationCell[], After, Cell];]]
  • $\begingroup$ Manu, unfortunately I can't quite follow your explanation. Could you please provide examples? A minimal code example showcasing your problem would be best. You can always edit your question by using the "edit" link under the question. $\endgroup$
    – MarcoB
    Aug 19, 2015 at 21:51
  • $\begingroup$ I believe you should explain the following sentence further: "Unfortunately, in this program you need to change the routine manually and then later by clicking on "Start" I can not consider the changes by not clicking "Shift + Enter"" $\endgroup$ Aug 20, 2015 at 1:24

1 Answer 1


I'm guessing that you want to produce an interactive application in which the user changes any of a set of parameters and then clicks on a button to indicate that the new parameters are to applied. That sort of thing is usually done within a Manipulate expression. Here is an simple example of such an expression -- a solver for quadratic equations.

  If[solve, solve = False; solution = update[]];
      Row[{"Equation: ", TraditionalForm[a x^2 + b x + c == 0]}],
      Row[{"Solution: ", solution}]}],
  Style["Coefficients", Bold, 11],
  {{a, 1}},
  {{b, 0}},
  {{c, -1}},
  {{solve, False}, None},
  {{solution, {{x -> -1}, {x -> 1}}}, None},
  Button["Solve", solve = True, ImageSize -> Automatic],
  Initialization :> (update[] := Solve[ a x^2 + b x + c == 0, x]),
  TrackedSymbols :> {solve, solution},
  ControlPlacement -> Bottom]


Making changes to any of the three input fields has no effect until the Solve button is clicked. Since you are working on your first Mathematica program, there is probably a lot in the above example that will be new and strange to you, but I hope you will study it and that it will help you to develop the application you are working on.


$\quad \quad $Introduction to Manipulate

$\quad \quad $Advanced Manipulate Functionality


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