[
https://issues.apache.org/jira/browse/FLEX-34359?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14021727#comment-14021727
]
Saju Thankathurai commented on FLEX-34359:
------------------------------------------
Sample Code to reproduce is mentioned below.
Error occurs in
const dimensions:GridDimensions = grid.mx_internal::gridDimensions; during
runtime on dragging the header
<?xml version="1.0" encoding="utf-8"?>
<s:WindowedApplication xmlns:fx="http://ns.adobe.com/mxml/2009";
xmlns:s="library://ns.adobe.com/flex/spark"
xmlns:mx="library://ns.adobe.com/flex/mx"
initialize="initData()">
<fx:Script>
<![CDATA[
import mx.collections.ArrayCollection;
import mx.core.mx_internal;
import mx.events.FlexEvent;
import spark.components.Grid;
import spark.components.GridColumnHeaderGroup;
import spark.components.gridClasses.GridDimensions;
import spark.events.GridEvent;
private var dgArray:Array = [
{Artist: 'Pavement', Album: 'Slanted and
Enchanted', Price: 11.99},
{Artist: 'Pavement', Album: 'Brighten the
Corners', Price: 11.99}
];
[Bindable]
public var initDG:ArrayCollection;
private var dragging:Boolean;
// Initialize initDG variable from the Array.
public function initData():void {
initDG = new ArrayCollection(dgArray);
this.nativeWindow.maximize();
}
private function
myGrid_creationCompleteHandler(event:FlexEvent):void {
var dg:DataGrid = event.currentTarget as
DataGrid;
dg.removeEventListener(FlexEvent.CREATION_COMPLETE,
myGrid_creationCompleteHandler);
dg.columnHeaderGroup.addEventListener(GridEvent.SEPARATOR_MOUSE_DRAG,
separatorMouseDragHandler);
dg.columnHeaderGroup.addEventListener(GridEvent.SEPARATOR_MOUSE_UP,
separatorMouseUpHandler);
}
private function
separatorMouseDragHandler(event:GridEvent):void {
const headerGroup:GridColumnHeaderGroup =
event.currentTarget as GridColumnHeaderGroup;
if (headerGroup.dataGrid.columnsLength > 1 &&
event.columnIndex < event.grid.columns.length -1) {
dragging = true;
}
}
private static const BOUND_LIMIT:int = 5;
private static const BOUND_SPACE:int = 5;
private function
separatorMouseUpHandler(event:GridEvent):void {
if (dragging) {
dragging = false;
const columnIndex:int =
event.columnIndex;
const headerGroup:GridColumnHeaderGroup
= event.currentTarget as GridColumnHeaderGroup;
const grid:Grid = event.grid;
const visibleColumnIndices:Vector.<int>
= grid.getVisibleColumnIndices();
const isVisible:Boolean =
visibleColumnIndices.indexOf(columnIndex) > -1;
if (visibleColumnIndices.length >=
columnIndex + 1 && isVisible) {
const dimensions:GridDimensions
= grid.mx_internal::gridDimensions;
const
visibleColumnsWidthBeforeOur:Number = dimensions.getContentWidth(columnIndex);
const
visibleColumnsWidthUpToOur:Number = dimensions.getContentWidth(columnIndex + 1);
if (visibleColumnsWidthUpToOur
+ BOUND_LIMIT > grid.width) {
const newWidth:Number =
grid.width - visibleColumnsWidthBeforeOur - BOUND_LIMIT;
event.column.width =
newWidth;
}
}
}
}
]]>
</fx:Script>
<s:DataGrid id="myGrid" x="50" y="50"
width="1000" height="500"
dataProvider="{initDG}"
horizontalScrollPolicy="off"
creationComplete="myGrid_creationCompleteHandler(event)"/>
</s:WindowedApplication>
> RTE when accessing gridDimensions
> ---------------------------------
>
> Key: FLEX-34359
> URL: https://issues.apache.org/jira/browse/FLEX-34359
> Project: Apache Flex
> Issue Type: Bug
> Components: Spark: DataGrid
> Affects Versions: Adobe Flex SDK 4.6 (Release)
> Environment: Windows 7 Enterprise edition, Adobe Flash builder 4.7
> Premium
> Reporter: Saju Thankathurai
> Labels: Apache
>
> Getting a RunTime Error on accessing gridDimensions.
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