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From "Justin Mclean (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (FLEX-34218) Binding error in DataGridColumn
Date Sun, 12 Oct 2014 00:02:47 GMT

     [ https://issues.apache.org/jira/browse/FLEX-34218?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Justin Mclean resolved FLEX-34218.
----------------------------------
    Resolution: Not a Problem

No an issue, we may want to revisit performance of mx:List etc at a later date.

> Binding error in DataGridColumn
> -------------------------------
>
>                 Key: FLEX-34218
>                 URL: https://issues.apache.org/jira/browse/FLEX-34218
>             Project: Apache Flex
>          Issue Type: Bug
>          Components: Data Binding, mx: DataGrid
>    Affects Versions: Apache Flex 4.12.0
>         Environment: Windows 7 64bits
>            Reporter: Fernando Hernandez
>            Assignee: Justin Mclean
>              Labels: DataGridColumn
>   Original Estimate: 8h
>  Remaining Estimate: 8h
>
> The mx:DataGridColumn launch exception when dataField property is used with any getter
function that can be throw a TypeError. The errors aren't catched as expected in mx:DataGridColumn#itemToLabel()
function. The spark GridColumn still ignores errors.
>  
> Existing applications may break.
> In Flex 4.12 you remove the try catch for  mx:DataGridColumn#itemToLabel() for data[datafield]
in this changeset: https://fisheye6.atlassian.com/changelog/flex-sdk?cs=9f8aab8675dc3288be9b1b906da64b5c91728d70
> StackTrace
> TypeError: Error #1009: Cannot access a property or method of a null object reference.
> 	at Item/get count()[C:\desarrollo\workspaces\fluid\flexbuilder7-workspace\asdf\src\Item.as:16]
> 	at mx.controls.dataGridClasses::DataGridColumn/itemToLabel()[/Users/justinmclean/Documents/ApacheFlex4.12.0/frameworks/projects/mx/src/mx/controls/dataGridClasses/DataGridColumn.as:1749]
> 	at mx.controls.dataGridClasses::DataGridBase/makeListData()[/Users/justinmclean/Documents/ApacheFlex4.12.0/frameworks/projects/mx/src/mx/controls/dataGridClasses/DataGridBase.as:1493]
> 	at mx.controls::DataGrid/http://www.adobe.com/2006/flex/mx/internal::setupRendererFromData()[/Users/justinmclean/Documents/ApacheFlex4.12.0/frameworks/projects/mx/src/mx/controls/DataGrid.as:2013]
> 	at mx.controls::DataGrid/commitProperties()[/Users/justinmclean/Documents/ApacheFlex4.12.0/frameworks/projects/mx/src/mx/controls/DataGrid.as:1968]
> 	at mx.core::UIComponent/validateProperties()[/Users/justinmclean/Documents/ApacheFlex4.12.0/frameworks/projects/framework/src/mx/core/UIComponent.as:8751]
> 	at mx.managers::LayoutManager/validateProperties()[/Users/justinmclean/Documents/ApacheFlex4.12.0/frameworks/projects/framework/src/mx/managers/LayoutManager.as:605]
> 	at mx.managers::LayoutManager/doPhasedInstantiation()[/Users/justinmclean/Documents/ApacheFlex4.12.0/frameworks/projects/framework/src/mx/managers/LayoutManager.as:821]
> 	at mx.managers::LayoutManager/doPhasedInstantiationCallback()[/Users/justinmclean/Documents/ApacheFlex4.12.0/frameworks/projects/framework/src/mx/managers/LayoutManager.as:1188]



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