Husain Kitabi wrote:
> I tried to use
> <mx:DataGridColumn columnName="classgroupVenue"
> headerText="Classgroup Venue" />
> <mx:DataGridColumn columnName="classgroupCapacity"
> headerText="Classgroup Capacity"/>
> <mx:DataGridColumn columnName="module.moduleName"
> headerText="Module"/>
>
>
> The first 2 columns are fine. But module.moduleName - it does not
> display anything. Has anybody done something like this. Pl advise.
You need to create a custom cell renderer. The default cell renderer
only allows you to go "1 deep" into an object, so you have to createa
cell renderer that can understand column names that use a path to get
deeper into a object.
Heres some partial code to give you an idea.. the entire cell renderer
will be found in Flex By Example with sample usage. This code would go
inside a "PathCellRenderer.as" file that creates a Label component to
render text.
private function setValue( str:String, item:Object, selection:String
):Void
{
if ( item == undefined ) {
label.visible = false;
return;
}
label.visible = true;
// Split up the complex path into pieces
var path = getDataLabel().split(".");
// "dot down" to the item to display
var toDisplay = item[ path[0] ];
for ( var i:Number = 1; i < path.length; i++ ) {
toDisplay = toDisplay[ path[i] ];
}
label.text = toDisplay;
}
Flex by example will ship on October 24th, I believe. :-)
-d
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