AS3：用于DataGrid的基于XML的DataProvider使列无序

[Bindable]
public var aColumns:Array;


var myAttribute:DataGridColumn = new DataGridColumn( );
myAttribute.dataField = \'attribute\';
myAttribute.visible = true;

// measure the width of the text to make it pretty
var label:TextField = new TextField();
label.text = \'attribute\';
var metrics:TextLineMetrics = label.getLineMetrics(0);
myAttribute.width = metrics.width + 30;



var myInfo:DataGridColumn = new DataGridColumn( );
myInfo.dataField = \'info\';
myInfo.visible = true;

// measure the width of the text to make it pretty
var label:TextField = new TextField();
label.text = \'info\';
var metrics:TextLineMetrics = label.getLineMetrics(0);
myInfo.width = metrics.width + 30;


aColumns.push( myAttribute);
aColumns.push( myInfo);

this.columns = aColumns;