?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。
??????????????????????? [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<dgSource.length;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ColumnGroup
?? ??? ??? ?private function getColumnGroupNames(columnsSource:ArrayCollection):Array
?? ??? ??? ?{
?? ??? ??? ??? ?var columnGrouNames:Array=new Array();
?? ??? ??? ??? ?
?? ??? ??? ??? ?if (columnsSource && columnsSource.length > 0)
?? ??? ??? ??? ?{
?? ??? ??? ??? ??? ?for (var i:int=0; i < columnsSource.length; i++)
?? ??? ??? ??? ??? ?{
?? ??? ??? ??? ??? ??? ?var obj:Object=columnsSource.getItemAt(i);
?? ??? ??? ??? ??? ??? ?var column:AdvancedDataGridColumn=new AdvancedDataGridColumn();
?? ??? ??? ??? ??? ??? ?column.headerText=obj.duName;
?? ??? ??? ??? ??? ??? ?column.dataField=obj.duName;
?? ??? ??? ??? ??? ??? ?column.width = 130;
?? ??? ??? ??? ??? ??? ?
?? ??? ??? ??? ??? ??? ?if (obj.hasOwnProperty("duOwner"))
?? ??? ??? ??? ??? ??? ?{
?? ??? ??? ??? ??? ??? ??? ?//检测当前是否存在群组
?? ??? ??? ??? ??? ???????????????? var column_index:int=judgeGroupNameIfExist(columnGrouNames,obj.duOwner);
?? ??? ??? ??? ??? ??? ??? ?
?? ??? ??? ??? ??? ??? ??? ?//判断当前群组是否存在
?? ??? ??? ??? ??? ??? ??? ?//如果存在则添加子列
?? ??? ??? ??? ??? ??? ??? ?if (column_index > -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 < groupSource.length; i++)
?? ??? ??? ??? ?{
?? ??? ??? ??? ??? ?if (groupSource[i].headerText == name)
?? ??? ??? ??? ??? ?{
?? ??? ??? ??? ??? ??? ?return i;
?? ??? ??? ??? ??? ?}
?? ??? ??? ??? ?}
?? ??? ??? ??? ?return -1;
?? ??? ??? ?}
xml数据源
<?xml version="1.0" encoding="utf-8"?> <root> ? <Item> ??? <duName>Name</duName> ??? <value> ????? <string>Name 1</string> ????? <string>Name 2</string> ????? <string>Name 3</string> ????? <string>Name 4</string> ????? <string>Name 5</string> ??? </value> ? </Item> ? <Item> ??? <duName>Owner</duName> ??? <value> ????? <string>HR 1</string> ????? <string>HR 2</string> ????? <string>HR 3</string> ????? <string>HR 4</string> ????? <string>HR 5</string> ??? </value> ? </Item> ? <Item> ??? <duName>Type</duName> ??? <value> ????? <string>Labor 1</string> ????? <string>Labor 2</string> ????? <string>Labor 3</string> ????? <string>Labor 4</string> ????? <string>Labor 5</string> ??? </value> ? </Item> ? <Item> ??? <duName>Department One</duName> ??? <duOwner>Zhang San</duOwner> ??? <value> ????? <string>13.0000</string> ????? <string>14.0000</string> ????? <string>15.0000</string> ????? <string>16.0000</string> ????? <string>17.0000</string> ??? </value> ? </Item> ? <Item> ??? <duName>Department Two</duName> ??? <duOwner>Li Shi</duOwner> ??? <value> ????? <string>4.0000</string> ????? <string>5.0000</string> ????? <string>6.0000</string> ????? <string>7.0000</string> ????? <string>8.0000</string> ??? </value> ? </Item> ? <Item> ??? <duName>Department Three</duName> ??? <duOwner>Wang Wu</duOwner> ??? <value> ????? <string>9.0000</string> ????? <string>10.0000</string> ????? <string>11.0000</string> ????? <string>12.0000</string> ????? <string>13.0000</string> ??? </value> ? </Item> ? <Item> ??? <duName>Department Four</duName> ??? <duOwner>Zhang San</duOwner> ??? <value> ????? <string>5.0000</string> ????? <string>6.0000</string> ????? <string>7.0000</string> ????? <string>8.0000</string> ????? <string>9.0000</string> ??? </value> ? </Item> ? <Item> ??? <duName>Department Five</duName> ??? <duOwner>Wang Wu</duOwner> ??? <value> ????? <string>11.0000</string> ????? <string>12.0000</string> ????? <string>13.0000</string> ????? <string>14.0000</string> ????? <string>15.0000</string> ??? </value> ? </Item> </root>
