"Show error dialog"

maalvarez
maalvarez New Altair Community Member
edited November 5 in Community Q&A
Hello,

I am developing an operator and I want that a dialog error appears when user enter an invalid data.
How can i do it?

Thanks!
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Answers

  • Marco_Boeck
    Marco_Boeck New Altair Community Member
    Hi,

    you can specifiy the type of the ParameterType, e.g. ParameterTypeDouble. Then RapidMiner makes sure the value entered is at least numeric. Otherwise, if you want for example to make sure a parameter is between 0 and 1, you can make the operator throw an error when it is not.
    However, if you want to add some sort of input verification right when the user has entered something, you will need to create one yourself, there is no mechanism in RapidMiner that you could use for that. I suggest having a look at the ParameterType implementations and the PropertyValueCellEditor interace with its implementations and continue from there.

    Regards,
    Marco
  • radone
    radone New Altair Community Member
    Just throw OperatorException with a particular message (there are also some localized alternatives such as UserException etc.)

    radone

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