[FLEX-34644] Datagrid - Rectangle bounds problem

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: Apache Flex 4.13.0
• Fix Version/s: Apache Flex 4.14.0
• Component/s: Spark: DataGrid
• Environment: All OS, all Flash Player Version
• Assignee: Unassigned
• Reporter: Anthony
• Created: 25/Nov/14 08:39
• Updated: 12/Dec/14 05:14
• Resolved: 25/Nov/14 18:10

Description

I have a problem with datagrid, when I fill with a big dataprovider, the bounds of datagrid is bigger than that is display. So the elements display on bottom of datagrid and smallest depth are unreachable.

If I select "show redraw regions" options with Flash Player, I can see that the height is bigger than the real height display (red rectangle display in image).

With the Flex SDK 4.6, this problem seems not appear, but with the Flex SDK 4.9 to SDK 4.13, the problem appears.

With this sample, you can test the problem :

[CODE]
<?xml version="1.0" encoding="utf-8"?>
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"
xmlns:s="library://ns.adobe.com/flex/spark"
xmlns:mx="library://ns.adobe.com/flex/mx"
minWidth="955" minHeight="600"
creationComplete="application1_creationCompleteHandler(event)"
>
<fx:Script>

<![CDATA[
import mx.collections.ArrayCollection;
import mx.events.FlexEvent;

protected function application1_creationCompleteHandler(event:FlexEvent):void
{
var provider : ArrayCollection = new ArrayCollection();

for(var i : int = 0; i < 1000; i++)
{
provider.addItem(

{index : i, label : 'test '+i}

);
}

dg.dataProvider = provider;
}

]]>

</fx:Script>
<s:TextInput id="ti" horizontalCenter="0" bottom="50" prompt="sample..." width="300"/>

<s:VGroup horizontalCenter="0" width="50%" paddingLeft="20" paddingRight="20" paddingTop="20" paddingBottom="20">
<s:DataGrid width="100%" requestedRowCount="5" id="dg">
<s:columns>
<s:ArrayList>
<s:GridColumn dataField="index" headerText="Index" />
<s:GridColumn dataField="label" headerText="Test" />
</s:ArrayList>
</s:columns>
</s:DataGrid>
</s:VGroup>
</s:Application>
[/CODE]

Issue Links

• is related to: FLEX-34467 Spark DataGrid performance extremely decreased since "gridView" is introduced.
• is related to: FLEX-34260 s:datagrid cacheAsBitmap caches an itemRenderer for every item in the dataProvider