Performance of the ADG number of columns?

Hi all

I was wondering if there is a correlation between the time it takes for an ADG update itself after the modification of the data and the number of columns. I want to know in case it's just my bad code :-). For example, I noticed that the ADG is much slower under 31 columns as 15 for this simple example. I'm a beginner at this so I guess I don't know what I'm doing, but the difference in speed is an order of magnitude different.

"" < mx:AdvancedDataGrid xmlns:mx = ' http://www.adobe.com/2006/mxml ' rowHeight = "25" sortItemRenderer = "SortItemHider".
"creationComplete =" init () ' allowMultipleSelection = 'true' selectionMode = "single-celled" itemClick = "setStart (event)" xmlns:local = "" * ">"

< mx:columns >
< mx:AdvancedDataGridColumn dataField = 'task' id = "task" headerText = "task" width = "60" textAlign = "center" resizable = "true" / >
< / mx:columns >

...

private function initColumns (): void //This function creates a lot of dynamic columns and adds them to the adg
{
var test1:Array = This.colonnes;
var test2:ArrayCollection = new ArrayCollection (test1);
test2. RemoveAll();
for (var int index = 0; index < this.columns.length; index ++)
{
test2. AddItem (this.) Columns [index]);
}
defaultColumns = test2.length - 1;
for (var x: int = 0; x < MAX_COLS; x ++)
{
var newColumn:AdvancedDataGridColumn = new AdvancedDataGridColumn ("day" +(x+1));
newColumn.dataField = "day" + (x + 1);
newColumn.setStyle ("textAlign", "Center");
var day: Number = todaysDate.getDate ();
newColumn.headerText = String (x);
test2. AddItem (newColumn);
}
This.colonnes = test1;
}

...

private void setStart(event:ListEvent):void //when you click on a cell that is not the first, it will create data in the ADG
{
task of the var: String = event.itemRenderer.data.task;

var selectedRow:int = dataArray.getItemIndex (event.itemRenderer.data);
var selectedItem:Object = dataArray [selectedRow];

var totalHours:int = selectedItem.unscheduled;
selectedItem.unscheduled = 0;
var startDay:int = this.selectedColumnIndex - defaultColumns;
If (startDay > 0 & & selectedRow! = - 1).
{
var HoursPerDay:int = 8;
var dailyHours:int = totalHours / HoursPerDay;
var leftoverHours:int = totalHours HoursPerDay %;
var days: int = dailyHours + (leftoverHours! = 0? 1: 0);
var endDay:int = startDay + days;
selectedItem.start = startDay;
Void var;
for (var int index = startDay; index < endDay; index ++)
{
columnName = 'day' + index;
if(index < This.Columns.Length)
{
If (index == endDay-1 & & leftoverHours > 0)
{
selectedItem [columnName] = leftoverHours;
return;
}
selectedItem [columnName] = HoursPerDay;
}
}
}
}
}

Sorry, wrong forum

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