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Some controls do not appear to work with Manipulate inside a DialogInput. For example:

DialogInput[{Manipulate[x, {x, {1, 2, 3}}], DefaultButton[]}]

does not work, but the slider version:

DialogInput[{Manipulate[x, {x, 1, 3, 1}], DefaultButton[]}]

does work.

Is this a bug or am I missing a vital option setting?

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1 Answer 1

Reset to default
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Try

DialogInput[{Manipulate[Dynamic[x], {{x, 2}, {1, 2, 3}}, 
   LocalizeVariables -> False], Button["OK", DialogReturn[x]]}]

I'm not sure why Dynamic is required.

LocalizeVariables -> False allows the value of x to be returned (outside of the scope of the Manipulate. LocalizedVariables was shown to be necessary for a Manipulate embedded in DialogInput. See here.

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    $\begingroup$ Do you know why that additional Dyanmic is required only in this case? $\endgroup$
    – rm -rf ♦
    Mar 27, 2012 at 15:41
  • $\begingroup$ No. I haven't a clue. $\endgroup$
    – DavidC
    Mar 27, 2012 at 15:46
  • $\begingroup$ Thank you so much David, this has been driving me nuts. $\endgroup$
    – Simon Woods
    Mar 27, 2012 at 16:00
  • $\begingroup$ @Simon Glad to be of help. I still find it strange that Manipulate[x, {{x, 2}, {1, 2, 3}}] works fine by itself, with x behaving like a dynamic variable within Manipulate when Manipulate is not embedded in DialogInput`. $\endgroup$
    – DavidC
    Mar 27, 2012 at 16:49

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