Unrecognised custom attribute...

Sten-Erik Björling s-e.bjorling at enviro.se
Sun Apr 22 09:10:31 EDT 2018

Dear Michael,

Thanks for your suggestions - do not solve it though. Might depend on me trying some new stuff…

8.1.5, test system modules for JS web app functions fully on desktop browser system - when using the system using the components in Omnis App this error comes up. Same subforms are called with the same parameters - the only difference is that the subforms in the Omnis App variant are placed in a paged pane for switching between the forms due to the smaller screens of mobile devices. Have tried close to everything to get this to work - obviously there might be a challenge with addressing and calling subwindow methods within subforms in JS applications. I will have to dig deeper… Thanks anyway for your contribution :-).

Take care, all the best…



> On 22 Apr 2018, at 12:05, Michael Monschau <michael at brainydata.co.uk> wrote:
> Hi Stene,
> This error means you are attempting to access a notation property or method that does not exist within the object. It could be the object is undefined/NULL or that a different object is being addressed to the one the code expects.
> If it is right that you may address an object that does not implement the custom attribute you can use the notation $cando for methods or $canassign for properties to avoid the error.
> For example:
> If myObj.$mymethod.$cando
> 	Do myObj.$mymethod()
> Else
> 	; do something else
> End if
> Regards,
> Michael
> MIchael Monschau
> Brainy Data Limited
> visit www.brainydata.com/demos to try the latest Studio external components
>> On 22 Apr 2018, at 07:32, Sten-Erik Björling <s-e.bjorling at enviro.se> wrote:
>> Dear all,
>> In my test systems I get in contact with an error that I cannot solve - because sometimes it works and other times it does not. And close to identical code works flawlessly in other objects and forms.
>> The common denominator here is the error text “Unrecognized custom attribute” and there are no errors in the method call, nor the variable sent as a parameter. As earlier stated - one call gives the error, another is OK.
>> Anyone having any experiences with this type of errors?
>> Take care, all the best…
>> Stene
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