Button error

[senordhuff]

Haven't figured out how to recreate this problem yet. But, we had a user report this error to us with a recent 8.2 nightly

08:36:09.785:TMR7:WARN:Log:TypeError: Cannot read property '0' of undefined
    unnamed() @ 
    Button.getTitleCell()
    Button.setTableClassName()
    Button.stateChanged()
    StatefulCanvas.setBaseStyle()
    [c]Hover.show()
    DynamicForm._showItemHover()
    FormItem._handleTitleHover()
    Hover._doAction()
    [c]Class.fireCallback()
    Timer._fireTimeout()

Could it be related to this snippet needing a null check on rows and cells?


,isc.A.getTitleCell=function isc_Button_getTitleCell(){if(!this.getHandle())return null;var _1=this.getHandle().firstChild.rows[0].cells[0];return _1}

[Isomorphic]

The stack trace definitely indicates that an unexpected DOM structure was encountered, so a null check would get rid of this.
We've modified the source to include a null check, so this error should go away.
However it does imply that the app code is somehow attempting to manipulate the DOM elements within a Button in a way that is possibly invalid, so we would be interested in seeing the test case that led to this error for you.

Regards
Isomorphic Software

[senordhuff]

Thanks, is that fix in both 8.2 and 8.3 nightlies?

[Isomorphic]

Yes - the fix is in both branches