js error in an heavily customized grid

[claudiobosticco]

SmartClient Version: v8.2p_2012-06-04/PowerEdition Deployment

In a heaviliy customized grid I have this js error (chrome, ie8) while double clicking to edit a text area:

17:48:01.312:WARN:DynamicForm:isc_PopUpTextAreaItem_0$21t:Attempt to access destroyed widget in the DOM - destroy() called at invalid time (eg: mid-draw) or invalid method called on destroy()d widget. Stack Trace:
    Class.getStackTrace(_1=>undef, _2=>undef, _3=>undef, _4=>undef)
    Canvas.getHandle()
    Canvas.getClipHandle()
    Canvas.getStyleHandle()
    Canvas.getLeft()
    Canvas.moveTo(_1=>819, _2=>401, _3=>undef, _4=>undef)
    PopUpTextAreaItem.placePopUp()
    PopUpTextAreaItem.showPopUp(_1=>true)
    ListGrid.$30x(_1=>[PopUpTextAreaItem ID:isc_PopUpTextAreaItem_0 name:DESCRIZIONE_SERVIZIO], _2=>2, _3=>3, _4=>"Guida per visita impianto")
    [o]CheckboxItem.elementFocus(_1=>false, undef, undef, undef)
    DynamicForm.bubbleItemHandler(_1=>[PopUpTextAreaItem ID:isc_PopUpTextAreaItem_0 name:DESCRIZIONE_SERVIZIO], _2=>"elementFocus", _3=>false, _4=>undef, _5=>undef, _6=>undef)
    DynamicForm.elementFocus(_1=>[AElement]{ID:isc_DS}, _2=>[PopUpTextAreaItem ID:isc_PopUpTextAreaItem_0 name:DESCRIZIONE_SERVIZIO])
    FormItem.$12v(_1=>[AElement]{ID:isc_DS}, _2=>[PopUpTextAreaItem ID:isc_PopUpTextAreaItem_0 name:DESCRIZIONE_SERVIZIO])
    FormItem.$121(_1=>"popUpIcon", _2=>[AElement]{ID:isc_DS})
    [c]FormItem.$120()
        "var _1=this,_2=isc.DynamicForm.$mu(_1),_3=_2.item,_4=_2.overIcon;if(_3){if(_3.iconIsDisabled(_4))_1.blur();else return _3.$121(_4,_1)}"

17:48:01.312:WARN:DynamicForm:isc_PopUpTextAreaItem_0$21t:Attempt to access destroyed widget in the DOM - destroy() called at invalid time (eg: mid-draw) or invalid method called on destroy()d widget. Stack Trace:
    Class.getStackTrace(_1=>undef, _2=>undef, _3=>undef, _4=>undef)
    Canvas.getHandle()
    Canvas.getClipHandle()
    Canvas.getStyleHandle()
    Canvas.getTop()
    Canvas.moveTo(_1=>819, _2=>401, _3=>undef, _4=>undef)
    PopUpTextAreaItem.placePopUp()
    PopUpTextAreaItem.showPopUp(_1=>true)
    ListGrid.$30x(_1=>[PopUpTextAreaItem ID:isc_PopUpTextAreaItem_0 name:DESCRIZIONE_SERVIZIO], _2=>2, _3=>3, _4=>"Guida per visita impianto")
    [o]CheckboxItem.elementFocus(_1=>false, undef, undef, undef)
    DynamicForm.bubbleItemHandler(_1=>[PopUpTextAreaItem ID:isc_PopUpTextAreaItem_0 name:DESCRIZIONE_SERVIZIO], _2=>"elementFocus", _3=>false, _4=>undef, _5=>undef, _6=>undef)
    DynamicForm.elementFocus(_1=>[AElement]{ID:isc_DS}, _2=>[PopUpTextAreaItem ID:isc_PopUpTextAreaItem_0 name:DESCRIZIONE_SERVIZIO])
    FormItem.$12v(_1=>[AElement]{ID:isc_DS}, _2=>[PopUpTextAreaItem ID:isc_PopUpTextAreaItem_0 name:DESCRIZIONE_SERVIZIO])
    FormItem.$121(_1=>"popUpIcon", _2=>[AElement]{ID:isc_DS})
    [c]FormItem.$120()
        "var _1=this,_2=isc.DynamicForm.$mu(_1),_3=_2.item,_4=_2.overIcon;if(_3){if(_3.iconIsDisabled(_4))_1.blur();else return _3.$121(_4,_1)}"

17:48:01.328:WARN:DynamicForm:isc_PopUpTextAreaItem_0$21t:Attempt to access destroyed widget in the DOM - destroy() called at invalid time (eg: mid-draw) or invalid method called on destroy()d widget. Stack Trace:
    Class.getStackTrace(_1=>undef, _2=>undef, _3=>undef, _4=>undef)
    Canvas.getHandle()
    Canvas.getClipHandle()
    Canvas.getStyleHandle()
    Canvas.$q5(_1=>819, _2=>401, _3=>null, _4=>null)
    Canvas.moveBy(_1=>16, _2=>-22, _3=>undef, _4=>undef)
    Canvas.moveTo(_1=>819, _2=>401, _3=>undef, _4=>undef)
    PopUpTextAreaItem.placePopUp()
    PopUpTextAreaItem.showPopUp(_1=>true)
    ListGrid.$30x(_1=>[PopUpTextAreaItem ID:isc_PopUpTextAreaItem_0 name:DESCRIZIONE_SERVIZIO], _2=>2, _3=>3, _4=>"Guida per visita impianto")
    [o]CheckboxItem.elementFocus(_1=>false, undef, undef, undef)
    DynamicForm.bubbleItemHandler(_1=>[PopUpTextAreaItem ID:isc_PopUpTextAreaItem_0 name:DESCRIZIONE_SERVIZIO], _2=>"elementFocus", _3=>false, _4=>undef, _5=>undef, _6=>undef)
    DynamicForm.elementFocus(_1=>[AElement]{ID:isc_DS}, _2=>[PopUpTextAreaItem ID:isc_PopUpTextAreaItem_0 name:DESCRIZIONE_SERVIZIO])
    FormItem.$12v(_1=>[AElement]{ID:isc_DS}, _2=>[PopUpTextAreaItem ID:isc_PopUpTextAreaItem_0 name:DESCRIZIONE_SERVIZIO])
    FormItem.$121(_1=>"popUpIcon", _2=>[AElement]{ID:isc_DS})
    [c]FormItem.$120()
        "var _1=this,_2=isc.DynamicForm.$mu(_1),_3=_2.item,_4=_2.overIcon;if(_3){if(_3.iconIsDisabled(_4))_1.blur();else return _3.$121(_4,_1)}"

17:48:01.343:WARN:Log:Error:
	''this.form' è nullo o non è un oggetto'
	in https://localhost:8443/Eleven/isomorphic/system/modules/ISC_Forms.js?isc_version=SC_SNAPSHOT-2012-06-04_v8.2p.js
	at line 1580
    FormItem.isDisabled()
    FormItem.$15x(_1=>"formCell")
    FormItem.getCellStyle()
    FormItem.$140()
    FormItem.getCellHeight(_1=>undef)
    [c]Canvas.applyTableResizePolicy(_1=>Array[1], _2=>195, _3=>100, _4=>2, _5=>Array[2], _6=>undef, _7=>undef)
    DynamicForm.getInnerHTML(undef)
    Canvas.$px(_1=>undef)
    Canvas.$p8(_1=>true)
    Canvas.draw(_1=>true, undef, undef, undef, undef, undef, undef, undef)
    Class.invokeSuper(_1=>[Class DynamicForm], _2=>"draw", _3=>true, _4=>undef, _5=>undef, _6=>undef, _7=>undef, _8=>undef, _9=>undef, _10=>undef)
    DynamicForm.draw(_1=>true, _2=>undef, _3=>undef, _4=>undef)
    Canvas.show()
    PopUpTextAreaItem.showPopUp(_1=>true)
    ListGrid.$30x(_1=>[PopUpTextAreaItem ID:isc_PopUpTextAreaItem_0 name:DESCRIZIONE_SERVIZIO], _2=>2, _3=>3, _4=>"Guida per visita impianto")
    [o]CheckboxItem.elementFocus(_1=>false, undef, undef, undef)
    DynamicForm.bubbleItemHandler(_1=>[PopUpTextAreaItem ID:isc_PopUpTextAreaItem_0 name:DESCRIZIONE_SERVIZIO], _2=>"elementFocus", _3=>false, _4=>undef, _5=>undef, _6=>undef)
    DynamicForm.elementFocus(_1=>[AElement]{ID:isc_DS}, _2=>[PopUpTextAreaItem ID:isc_PopUpTextAreaItem_0 name:DESCRIZIONE_SERVIZIO])
    FormItem.$12v(_1=>[AElement]{ID:isc_DS}, _2=>[PopUpTextAreaItem ID:isc_PopUpTextAreaItem_0 name:DESCRIZIONE_SERVIZIO])
    FormItem.$121(_1=>"popUpIcon", _2=>[AElement]{ID:isc_DS})
    [c]FormItem.$120()
        "var _1=this,_2=isc.DynamicForm.$mu(_1),_3=_2.item,_4=_2.overIcon;if(_3){if(_3.iconIsDisabled(_4))_1.blur();else return _3.$121(_4,_1)}"

any clue on where to look to find the root cause?

[claudiobosticco]

in this grid I have a field: {isRemoveField:true,frozen:true}

and if I set frozen:false then the problem disappear.

so I think it's related to:
http://forums.smartclient.com/showthread.php?p=87382#post87382