Flex根据后台的数据自动生成AdvancedDataGrid

       在企业级应用开发中AdvancedDataGrid 和DataGrid 使用的非常广。当然最基本的也是最常用的就是数据的直接绑定，固定列头和固定数据的列数。而这往往不能满足需求，企业应用的开发常常是以数据为中心，数据会经常变化比如增加了列头，删除某列的数据，群组子类的新增等等。这里就要根据后台数据完全的自动化生成了，也就是完全使用ActionScript来写,其实也很简单，flex的每段mxml标记都对应了相同的AS类，只是在某些细节上的实现有些不同.下面简单的例子供大家参考，相信能解决开发中的大部分问题。

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                        [Bindable]
public var dgSource:ArrayCollection = new ArrayCollection(); 
private var adDG:AdvancedDataGrid = new AdvancedDataGrid();
[Bindable]
public var newSource:ArrayCollection = new ArrayCollection();

protected function httpservice1_resultHandler(event:ResultEvent):void
{
dgSource = event.result.root.Item;

//遍历数据源
var ss:int = 0;
while(ss <((dgSource.getItemAt(0).value.string) as ArrayCollection).length)
{
var newObj:Object=new Object();
for(var s:int=0;s{
newObj[dgSource.getItemAt(s).duName] = dgSource.getItemAt(s).value.string[ss];
}
ss ++;
newSource.addItem(newObj);
}

adDG.dataProvider = newSource;
adDG.groupedColumns = getColumnGroupNames(dgSource);
adDG.sortableColumns = false;
adDG.sortExpertMode = false;
adDG.showInAutomatiOnHierarchy= false;
adDG.height = 400;
adDG.percentWidth = 100;
adDG.horizOntalScrollPolicy= ScrollPolicy.AUTO;
this.addElement(adDG);

}

                        //根据数据源格式生成相应的Column和ColumnGroupprivate function getColumnGroupNames(columnsSource:ArrayCollection):Array{var columnGrouNames:Array=new Array();if (columnsSource && columnsSource.length > 0){for (var i:int=0; i  -1){columnGrouNames[column_index].children.push(column)}else{var groupName:AdvancedDataGridColumnGroup=new AdvancedDataGridColumnGroup();groupName.headerText=obj.duOwner;groupName.children=[column];columnGrouNames.push(groupName);}}else //如果当前列不是群组列则直接添加{columnGrouNames.push(column);}}}return columnGrouNames;}//判断群组是否存在//不存在则添加//存在则返回当前下标private function judgeGroupNameIfExist(groupSource:Array, name:String):int{for (var i:int=0; i 











xml数据源

      Name          Name 1      Name 2      Name 3      Name 4      Name 5            Owner          HR 1      HR 2      HR 3      HR 4      HR 5            Type          Labor 1      Labor 2      Labor 3      Labor 4      Labor 5            Department One    Zhang San          13.0000      14.0000      15.0000      16.0000      17.0000            Department Two    Li Shi          4.0000      5.0000      6.0000      7.0000      8.0000            Department Three    Wang Wu          9.0000      10.0000      11.0000      12.0000      13.0000            Department Four    Zhang San          5.0000      6.0000      7.0000      8.0000      9.0000            Department Five    Wang Wu          11.0000      12.0000      13.0000      14.0000      15.0000