[flexcoders] Re: Trying to use a mx:model populated by XML file and then as source to ArrayCollection to populate datagrid

[Christina Burnham]

--- In flexcoders@yahoogroups.com, "Doug Lowder" <[EMAIL PROTECTED]> 
wrote:
>
> I missed the syntax problem but, interestingly enough, the app 
works 
> without the <mx:Array> tag - although I'm not sure why.  Tracy is 
> correct, the columns property is an Array so it should contain an  
> <mx:Array> tag when declared in mxml.
> 

I added the mx:array even though it works (with more than pet in the 
file) without it, and it still worked, but I was hoping it would 
solve solve the problem I get when there is only one pet in the file. 
Before it was just nothing, but since I added Tracy's mx:array it 
pops up an error window in the browser that says this..
TypeError: Error #1034: Type Coercion failed: cannot convert 
mx.utils::[EMAIL PROTECTED] to Array.
        at MethodInfo-505()
        at Function/http://adobe.com/AS3/2006/builtin::apply()
        at mx.binding::Binding/mx.binding:Binding::wrapFunctionCall()
        at mx.binding::Binding/::innerExecute()
        at Function/http://adobe.com/AS3/2006/builtin::apply()
        at mx.binding::Binding/mx.binding:Binding::wrapFunctionCall()
        at mx.binding::Binding/execute()
        at _popFromXmlFileWatcherSetupUtil/setup()
        at popFromXmlFile/initialize()
        at 
mx.managers::SystemManager/http://www.adobe.com/2006/flex/mx/internal:
:childAdded()
        at mx.managers::SystemManager/::initializeTopLevelWindow()
        at mx.managers::SystemManager/::frameEndHandler()


(This the the source) 
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"; 
layout="absolute">

    <!-- populate datagrid from xml file -->
        <mx:Model id="animalList" source="pets.xml"/>
                                
    <mx:ArrayCollection id="anListAC" source="{animalList.pet}"/>

        <mx:DataGrid x="75" y="98" dataProvider = "{anListAC}">  
                        <mx:columns>
                          <mx:Array>
                                <mx:DataGridColumn headerText="Type" 
dataField="anType"/>
                                <mx:DataGridColumn headerText="Name" 
dataField="anName"/>
                                <mx:DataGridColumn 
headerText="Living" dataField="anLiving"/>      
                           </mx:Array>  
                    </mx:columns> 
        </mx:DataGrid>
</mx:Application>