My application grew too large to pull a snippet out of as well. I began to put a sample application together but while doing so found where my error stemmed from. I got the error when the numeric data points on the chart were of values greater than 6 digits. What fixed it for me was setting the canDropLabels property of AxisRenderer to false. It appears that the values were too large so the AxisRenderer was dropping those labels, and when it tried to calculate the vertical gutters to make room for the labels, the labels that were dropped were then null, causing a null object reference error. I hope this helps you as well.
________________________________ From: [email protected] [mailto:[email protected]] On Behalf Of EddieBerman Sent: Wednesday, July 22, 2009 11:47 AM To: [email protected] Subject: [flexcoders] Re: AxisRenderer Error #1009: Cannot access a property or method of a null object reference I have no solution for you, but have come across this problem as well. If you have a simple app that demonstrates this error, you should create a new bug on the Adobe Bug Base and attach the code. My app is too huge at this point, and I haven't yet distilled it down to a submittable size. --- In [email protected] <mailto:flexcoders%40yahoogroups.com> , "Chad Callahan" <chad.calla...@...> wrote: > > I am using a ColumnChart with a ColumnSet of type "stacked". If I > switch this ColumnSet.type property to "100%" then it works just as > expected, but when I use the "stacked" type, I get the following: > > > > > > > > TypeError: Error #1009: Cannot access a property or method of a null > object reference. > > at > mx.charts::AxisRenderer/calcVerticalGutters()[C:\work\flex\dmv_automatio > n\projects\datavisualisation\src\mx\charts\AxisRenderer.as:2055] > > at > mx.charts::AxisRenderer/calcRotationAndSpacing()[C:\work\flex\dmv_automa > tion\projects\datavisualisation\src\mx\charts\AxisRenderer.as:1845] > > at > mx.charts::AxisRenderer/adjustGutters()[C:\work\flex\dmv_automation\proj > ects\datavisualisation\src\mx\charts\AxisRenderer.as:1534] > > at mx.charts::AxisRenderer/set > gutters()[C:\work\flex\dmv_automation\projects\datavisualisation\src\mx\ > charts\AxisRenderer.as:836] > > at > mx.charts.chartClasses::CartesianChart/updateAxisLayout()[C:\work\flex\d > mv_automation\projects\datavisualisation\src\mx\charts\chartClasses\Cart > esianChart.as:2110] > > at > mx.charts.chartClasses::CartesianChart/updateDisplayList()[C:\work\flex\ > dmv_automation\projects\datavisualisation\src\mx\charts\chartClasses\Car > tesianChart.as:1366] > > at mx.core::UIComponent/validateDisplayList() > > at mx.managers::LayoutManager/validateClient() > > at mx.core::UIComponent/validateNow() > > at com.deere.jdlink.view.dashboard.pod::UltimatePod/set > data()[C:\Documents and Settings\chad.callahan\My > Documents\clients\deere\jdlink\repository\trunk\development\flex\src\com > \deere\jdlink\view\dashboard\pod\UltimatePod.mxml:109] > > at spark.components::DataGroup/updateRenderer() > > at > spark.components::DataGroup/http://www.adobe.com/2006/flex/mx/internal:: <http://www.adobe.com/2006/flex/mx/internal::> > itemAdded() > > at spark.components::DataGroup/initializeDataProvider() > > at spark.components::DataGroup/commitProperties() > > at mx.core::UIComponent/validateProperties() > > at mx.managers::LayoutManager/validateProperties() > > at mx.managers::LayoutManager/doPhasedInstantiation() > > at > mx.managers::LayoutManager/doPhasedInstantiationCallback() > > > > > > Which is thrown from AxisRenderer line 2055 > > > > private function calcVerticalGutters(width:Number, > > leftGutter:Number, > > rightGutter:Number, > > firstLabel:ARLabelData, > > lastLabel:ARLabelData, > > adjustable:Object):Object > > { > > var labelAlignOffset:Number = this.labelAlignOffset; > > var axisLength:Number = width - leftGutter - rightGutter; > > > > var LS:Number = firstLabel.height * labelAlignOffset; > > var RS:Number = firstLabel.height * (1 - labelAlignOffset); > > var P1:Number = firstLabel.position; > > var P2:Number = 1 - lastLabel.position; > <-------(line 255) > > > > > > > > The error is being thrown because lastLabel is null. Can anyone think > of how lastLabel could possibly be null? > > > > Thanks, > > Chad >
