Question

在flex的AdvancedDataGrid中使用xml作为数据时遇到的问题

var xml:XML = <module>
<modules mod = "module1">
<course courseid = "m1u0" coursename = "教学目标" lastsavetime = "2013-8-1"/>
<course courseid = "m1u1" coursename = "Unit1" lastsavetime = "2013-8-2"/>
<course courseid = "m1u2" coursename = "Unit2" lastsavetime = "2013-8-3"/>
</modules>
<modules mod = "module2">
<course courseid = "m2u0" coursename = "教学目标" lastsavetime = "2013-8-4"/>
<course courseid = "m2u1" coursename = "Unit1" lastsavetime = "2013-8-5"/>
<course courseid = "m2u2" coursename = "Unit2" lastsavetime = "2013-8-6"/>
</modules>
<modules mod = "module3">
<course courseid = "m3u0" coursename = "教学目标" lastsavetime = "2013-8-7"/>
<course courseid = "m3u1" coursename = "Unit1" lastsavetime = "2013-8-8"/>
<course courseid = "m3u2" coursename = "Unit2" lastsavetime = "2013-8-9"/>
</modules>
<modules mod = "module4">
<course courseid = "m4u0" coursename = "教学目标" lastsavetime = "2013-8-10"/>
<course courseid = "m4u1" coursename = "Unit1" lastsavetime = "2013-8-11"/>
<course courseid = "m4u2" coursename = "Unit2" lastsavetime = "2013-8-12"/>
</modules>
<modules mod = "module5">
<course courseid = "m5u0" coursename = "教学目标" lastsavetime = "2013-8-13"/>
<course courseid = "m5u1" coursename = "Unit1" lastsavetime = "2013-8-14"/>
<course courseid = "m5u2" coursename = "Unit2" lastsavetime = "2013-8-15"/>
</modules>
</module>;
这样的一个xml如何绑定到AdvancedDataGrid中？

Answer 1

XML不行，那会只认识一个对象。你至少需要转换成XMLList，然后会默认转换成 XMLListCollection，直接使用。

Answer 2

[Bindable]var xc:XMLListCollection = new XMLListCollection(xml.modules);

<adg dataProvider={xc}/>

追问

我在列中的dataField分别这样写"@mod"，"@courseid"，"@coursename"，"@lastsavetime"但是只能显示第一列，大侠这个怎么搞

追答

哦，如果你要最终显示的数据是每个course，那应该这么写

[Bindable]var xc:XMLListCollection = new XMLListCollection(xml..course); 
<adg dataProvider={xc}/>

这样后面三个可以显示出来了，但是mod那一列不行，可以通过写labelfunction解决，取父节点的@mod值

<mx:AdvancedDataGridColumn labelFunction="modLabelFunction"/>

private function modLabelFunction(item:Object, column:AdvancedDataGridColumn):String
{
    var xx:XML = item as XML;
    return xx.parent().@mod;
}