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How to use hiHighlightField() to highlight a particular field if the input is incorrect

Manikk0501

Hi all,

                 I want to hightlight a particular field in a GUI with multiple tabs if the user input is incorrect(Let say it is a file input and the file name which user mentioned is not existing).

                 I added a ?modifyCallback function which has hiHighlightField() function. 

                 Command line is like this

                 hiHighlightField( Form->TabField->TabName 'Field 2 )

                 As per the intention, Field is hightlighted if the input is wrong, but i am getting an error in CIW as follows

                                     *Error* eval: not a function - 'Field

                                     *Error* car: Can't take car of atom - ERROR

                Can anyone let me know what I am missing here

Thanks and Regards,

Manikandan Kuzandhaivelu

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  • Andrew Beckett

    For anyone interested in the problem...

    From having seen the whole code, the issue was not with hiHighlightField() at all, but in the specification of the ?modifyCallback. The expectation is that ?modifyCallback is the name of the function, not a complete expression - and "hi" will add the arguments to the function call itself. If you specify a complete expression, the arguments will still be added, but these arguments will end up being seen as a second function call, with the name of the function being the quoted field name - hence the error.

    Unfortunately this shows that seeing the whole code is often important to understand bugs - they're not always where you might think they are...

    Regards,

    Andrew.

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  • Andrew Beckett

    For anyone interested in the problem...

    From having seen the whole code, the issue was not with hiHighlightField() at all, but in the specification of the ?modifyCallback. The expectation is that ?modifyCallback is the name of the function, not a complete expression - and "hi" will add the arguments to the function call itself. If you specify a complete expression, the arguments will still be added, but these arguments will end up being seen as a second function call, with the name of the function being the quoted field name - hence the error.

    Unfortunately this shows that seeing the whole code is often important to understand bugs - they're not always where you might think they are...

    Regards,

    Andrew.

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