Mobile Flex Serialize Feature Layer Issue

MattSheehan — Tue, 29 Jan 2013 12:53:19 GMT

We attended the Flex holistic lab in September 2012. At the time we were testing a mobile app using the 3.1b Flex build without problems. We've just started looking at the actual 3.1 release for an online/offline mobile app. In the app we are serializing a feature layer for offline use. With 3.0 and the 3.1b build, we were using in the September lab, all worked well, but in 3.1 we are getting the error below. We wondered what might have changed in 3.1 to cause this error:

TypeError: Error #1009: Cannot access a property or method of a null object reference.
    at com.esri.ags.layers::Layer/updateLayerIfInvalid()
    at com.esri.ags.layers::Layer/updateDisplayList()
    at mx.core::UIComponent/validateDisplayList()
at mx.managers::LayoutManager/validateDisplayList()
    at mx.managers::LayoutManager/doPhasedInstantiation()
    at mx.managers::LayoutManager/validateNow()
    at mx.core::UIComponent/commitCurrentState()
    at mx.core::UIComponent/setCurrentState()
    at mx.core::UIComponent/set currentState()
    at spark.components.supportClasses::SkinnableComponent/commitProperties()
    at mx.core::UIComponent/validateProperties()
    at mx.managers::LayoutManager/validateProperties()
    at mx.managers::LayoutManager/doPhasedInstantiation()
    at mx.managers::LayoutManager/validateNow()
    at mx.core::UIComponent/commitCurrentState()
    at mx.core::UIComponent/setCurrentState()
    at mx.core::UIComponent/set currentState()
    at spark.components.supportClasses::SkinnableComponent/commitProperties()
    at mx.core::UIComponent/validateProperties()
    at mx.managers::LayoutManager/validateProperties()
    at mx.managers::LayoutManager/doPhasedInstantiation()
    at mx.managers::LayoutManager/doPhasedInstantiationCallback()

Thanks

--Rory

Re: Mobile Flex Serialize Feature Layer Issue

YannCabon — Tue, 29 Jan 2013 17:39:08 GMT

Hi Rory,

We are aware of this bug, which will be fixed in the 3.2.
In the meantime try to set the layer as not visible when it's not on the map and put it back to visible when the new map is loaded.

Yann

Re: Mobile Flex Serialize Feature Layer Issue

MattSheehan — Tue, 29 Jan 2013 23:17:15 GMT

Thanks Yann. Looking forward to 3.2 particularly for our mobile work.

--Rory

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Mobile Flex Serialize Feature Layer Issue

Re: Mobile Flex Serialize Feature Layer Issue

Re: Mobile Flex Serialize Feature Layer Issue