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The following doesn't appear to work:

DynamicModule[{}, Button["Press Me", ChoiceDialog["OK or Cancel?"]]]

When I press the button labelled "Press Me", a dialog window appears, but without buttons, and then Mathematica hangs.

Is this a bug, or am I attempting something that can't or shouldn't be done inside a Dynamic Module? In either case, does anyone know of a workaround? ( In my real code, I have a button-initiated process inside a dynamic module for which I want to get user confirmation ).

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Thanks - sorry for the duplicate. –  Cuboid Dec 3 '12 at 12:20

1 Answer 1

up vote 9 down vote accepted

This is all you need:

Button["Press Me", Print[ChoiceDialog["OK or Cancel?"]], Method -> "Queued"]

Without the queued method the choice dialog clashes with the button, which is in preemptive mode by default, meaning it tries to run as the foremost process.

It also works fine in a dynamic module.

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