Data filtering for XML. Flex

问题

I am trying to filter xml data but right now I there are no data appearing in the list. Am I doing something wrongly? Sorry guys I am still new to this website too. Pardon me If I posted the wrong way.

This is the error.

TypeError: Error #1034: Type Coercion failed: cannot convert mx.collections::ArrayCollection@51443c1 to XMLList.

    xmlns:s="library://ns.adobe.com/flex/spark" title="Malls"

    creationComplete="malls.send()">

<fx:Declarations>
    <!-- Place non-visual elements (e.g., services, value objects) here -->
    <s:HTTPService id="malls" url="assets/details.xml" 
                   result="malls_resultHandler(event)"/>
</fx:Declarations>

<fx:Script>
    <![CDATA[
        import mx.collections.XMLListCollection;
        import mx.rpc.events.ResultEvent;
        [Bindable]
        private var ml:XMLListCollection;

        private function malls_resultHandler(Event:ResultEvent):void
        {
            ml = new XMLListCollection(malls.lastResult.list.mallD);

        }

        private function filterDemo():void{
            ml.filterFunction=searchDemo;
            ml.refresh();
        }

        private function searchDemo(item:Object):Boolean{
            var isMatch:Boolean=false;
            if(item.name.toLowerCase().search(search.text.toLowerCase())!=-1){
                isMatch=true;
            }
            return isMatch;
        }


    ]]>
</fx:Script>


<s:navigationContent/>
<s:titleContent>
    <s:TextInput id="search" change="filterDemo()" x="10" y="10" prompt="Search"/>
</s:titleContent>

<s:List id="list" top="0" bottom="0" left="0" right="0"
        dataProvider="{ml}"
        change="navigator.pushView(MallsDetails, list.selectedItem)">
    <s:itemRenderer>
        <fx:Component>
            <s:IconItemRenderer
                label="{data.name}"/>
        </fx:Component>
    </s:itemRenderer>
</s:List>

回答1:

Try this,

We needn't mention XML root tag name here so just get rid of list tag name when access XML.

Add resultFormat="e4x" to HTTPService component.

<s:HTTPService id="malls" url="assets/details.xml" resultFormat="e4x"
                   result="malls_resultHandler(event)"/>


ml = new XMLListCollection(malls.lastResult.mallD);

var response:XML = malls.lastResult as XML;

var mallIDXMLList:XMLList = response.mallD;             
m1 = new XMLListCollection(mallIDXMLList);

回答2:

You can try to replace

ml = new XMLListCollection(malls.lastResult.list.mallD);

var xmllist:XMLList = XMLList (malls.lastResult.list.mallD);
ml = new XMLListCollection(xmllist);

来源：https://stackoverflow.com/questions/21817375/data-filtering-for-xml-flex

标签

xml

apache-flex

flash-builder

flex4.5

flexbuilder