How to find ArrayList length after filtered in apache royale

Question

This code snippet is from TDJ List

<j:Card>
   <html:H3 text="Jewel List"/>
   <j:List id="list" width="200" height="300" dataProvider="{simple}" change="onChange(event)"/>
            <j:TextInput width="200">
                <j:beads>
                    <j:TextPrompt prompt="filter list..."/>
                    <j:SearchFilterForList list="{list}"/>
                </j:beads>
            </j:TextInput>
            <j:Label id="selected" html="{describeItem(list.selectedItem)}"/>                               
</j:Card>

There is j:SearchFilterForList

What i want to know is when its work (type some text on the filter textbox), how to find filtered list length?

Thankyou

Answer 1

Just use the new "length" property just recently added. Tour de Jewel was updated as well showing the use of this new bead property in the List examples.

<j:Label html="{'list filtered length: ' + filter.length}"/>
<j:TextInput>
    <j:beads>
        <j:TextPrompt prompt="filter list..."/>
        <j:SearchFilterForList id="filter" list="{iconList}"/>
    </j:beads>
</j:TextInput>

Notice that the filtering performed by this bead is only visual, and the underlaying dataProvider is not filtered itself. To get a filtered view of the dataProvider you should use ArrayListView API, that is similar to flex ListCollectionView with filterFuncion.