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I would like to create a set of custom controls that call Manipulate[] and return the value(s) set during the Manipulate session.

I can easily make a version that uses something like:

MyControl[] := Manipulate[...{a, -10,10}, {b,-1,1}]

This works but variables a, b and any additional variables set by Manipulate are global.

Is it possible to do something like this (Return a Dataset with the selected values for a and b when a "Set" button is clicked and Return Null if "Forget" is clicked):

MyControl[]:= Module[ {a, b},
                      Manipulate[...{a, -10, 10}, {b, -1, 1},
                                 Button["Set", Return[Dataset[Association @ {aValue->a, bValue->b}]]],
Button["Forget", Return[]]]]
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Are you certain that a and b in the first example are Global? In version 10 they do not appear to be:

enter image description here

(The sliders of one Manipulate do not affect those of the other.)

A look at the Cell Expression for one of these shows:

. . . DynamicModuleBox[{$CellContext`a$$ = -3.3999999999999995`, $CellContext`b$$ = 
0.21999999999999997`, . . .] . . .

It would seem that these are already localized with DynamicModule.

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  • $\begingroup$ Hi Mr. Wizard - I see them as global because I can see the values of a and b from the notebook that calls MyControl[]. I would like a and b to only be visible as a Dataset returned from MyControl[]. I would like a and b to only have definition inside MyControl[]. $\endgroup$ – Doug Kimzey Sep 3 '14 at 20:52
  • $\begingroup$ I'm using DynamicModule[...] around my Manipulate[] and all Manipulate[] variables are visible and settable in the notebook calling MyControl[]. I have set LocalizeVariables->True and all variables used by Manipulate are visible and settable from the calling notebook. $\endgroup$ – Doug Kimzey Sep 3 '14 at 21:18

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