Comments for User Interface at Workday Inc.

Comment on AutoSizingAdvancedDataGrid that fixes the variableRowHeight issues with mx.controls.AdvancedDataGrid by www.flexdatagrid.com

www.flexdatagrid.com — Tue, 01 Dec 2009 21:13:27 +0000

I made slight modifications that have resulted in better performance atleast for my scenario: just in case someone finds it helpful….

Add below code :

private var calculatedHeight:int=0;
private var calculatedListContentHeight:int=0;
private var calculatedHeightChanged:Boolean=false;

override protected function commitProperties():void{
super.commitProperties();
if(calculatedHeightChanged){
verticalScrollPosition=0;
calculatedHeightChanged=false;
height=calculatedHeight;
listContent.height=calculatedListContentHeight;
if ( height >= maxHeight ) {
this.verticalScrollPolicy = “auto”;
}
else this.verticalScrollPolicy = “off”;

}
}

Change measure height to:
protected function measureHeight():void
{
var buffer:int = ((this.horizontalScrollBar!=null)?this.horizontalScrollBar.height:0);
var maxContentHeight:int = maxHeight – (headerHeight + buffer);
var listContentHeight:int = this.headerHeight + buffer + getMeasuredHeight(maxContentHeight);
var hh:int = listContentHeight + 2;
if ( hh == this.height ) return;
calculatedListContentHeight = listContentHeight;
calculatedHeight = hh;
calculatedHeightChanged=true;
invalidateProperties();
}

Comment on AutoSizingAdvancedDataGrid that fixes the variableRowHeight issues with mx.controls.AdvancedDataGrid by www.flexdatagrid.com

www.flexdatagrid.com — Tue, 01 Dec 2009 17:18:42 +0000

I am also running into the same issue with performance – it looks measureHeight gets callled multiple times when expanding/collapsing.. Is there a way to prevent this?

Comment on AutoSizingAdvancedDataGrid that fixes the variableRowHeight issues with mx.controls.AdvancedDataGrid by Colm

Colm — Mon, 05 Oct 2009 20:26:18 +0000

This is a very useful extension to the AdvancedDataGrid. However, I’ve noticed that the rendering performance deteriorates significantly when using large volumes of Data within a grid with custom renderers. e.g. 500 rows in one of the nested levels. Has anyone else experienced something like this? Have you managed to overcome it/suggestions on how to improve performance?

Comment on AutoSizingAdvancedDataGrid that fixes the variableRowHeight issues with mx.controls.AdvancedDataGrid by Itay Cohen

Itay Cohen — Thu, 24 Sep 2009 13:05:50 +0000

Great solution…. i converted the code to work on Lists objects as well!!! thank you for the post!

Comment on AutoSizingAdvancedDataGrid that fixes the variableRowHeight issues with mx.controls.AdvancedDataGrid by Terry

Terry — Tue, 22 Sep 2009 16:42:19 +0000

Me again. I’ve implemented this solution and it definitely works, however for large result sets I’m losing the default styling on the ADG. i.e. No alternating row colors, no skins on the headers, etc. Any suggestions?

Comment on AutoSizingAdvancedDataGrid that fixes the variableRowHeight issues with mx.controls.AdvancedDataGrid by Terry

Terry — Tue, 22 Sep 2009 14:18:53 +0000

Hello, can’t find the definition of DEFAULT_MAX_HEIGHT.

Comment on Memory Leak in Flex 3.2 Lists & Grids by diaper pee girl

diaper pee girl — Mon, 20 Jul 2009 20:32:24 +0000

emm. thank you ))

Comment on Memory Leak in Flex 3.2 Lists & Grids by Hob

Hob — Wed, 06 May 2009 18:14:02 +0000

The error you’re seeing isn’t coming from StageEventProxy. StageEventProxy is simply calling the event listener which was registered. The error is actually being thrown from AdvancedDataGridBase. Unfortunately you’ll probably just have to spend some time in the debugger to see exactly why this is being thrown. It might be a configuration problem on the grid, but more than likely its simply a bug in the grid. We come across them all the time. Question is: Is this a critical error… Meaning, once you dismiss it, does your app completely stop responding, or do you continue to be able to use it. If the answer is the latter, then I wouldn’t worry too much about it. It’ll only ever be a problem for folks running the Flash debug player. If its the former, you’ve probably got at least a 1/2 day of debugging ahead of you.

Comment on Memory Leak in Flex 3.2 Lists & Grids by Vijay Anand Mareddy

Vijay Anand Mareddy — Wed, 06 May 2009 17:54:40 +0000

Hey all was well until i unintentionally did a mouse drag i think somewhere on the AdvDataGrid…

am getting an error at
[C:\Users\hob.spillane\Documents\Flex Builder 3\SDK_18268_PATCH\src\mx\managers\systemClasses\StageEventProxy.as:40]

TypeError: Error #1009: Cannot access a property or method of a null object reference.
at mx.controls.advancedDataGridClasses::AdvancedDataGridBase/http://www.adobe.com/2006/flex/mx/internal::columnItemRendererFactory()[C:\work\flex\dmv_automation\projects\datavisualisation\src\mx\controls\advancedDataGridClasses\AdvancedDataGridBase.as:1454]
at mx.controls::AdvancedDataGrid/http://www.adobe.com/2006/flex/mx/internal::columnItemRendererFactory()[C:\work\flex\dmv_automation\projects\datavisualisation\src\mx\controls\AdvancedDataGrid.as:2094]
at mx.controls.advancedDataGridClasses::AdvancedDataGridBase/http://www.adobe.com/2006/flex/mx/internal::columnItemRenderer()[C:\work\flex\dmv_automation\projects\datavisualisation\src\mx\controls\advancedDataGridClasses\AdvancedDataGridBase.as:1436]
at mx.controls::AdvancedDataGridBaseEx/columnDraggingMouseMoveHandler()[C:\work\flex\dmv_automation\projects\datavisualisation\src\mx\controls\AdvancedDataGridBaseEx.as:4916]
at mx.managers.systemClasses::StageEventProxy/stageListener()[C:\Users\hob.spillane\Documents\Flex Builder 3\SDK_18268_PATCH\src\mx\managers\systemClasses\StageEventProxy.as:40]

Comment on Memory Leak in Flex 3.2 Lists & Grids by Alexey

Alexey — Tue, 24 Mar 2009 18:28:23 +0000

2Feng
You should download Data Visualization for Flex 3.3 separately and unzip it to Flex 3.3. SDK folder
http://www.adobe.com/products/flex/flexdownloads/#flex_DataVisualization