Question

I’ve read how to do this but I’m falling short on implementation. I want an updateComplete event to run once then remove the listener.

Here’s the component:

<mx:ComboBox 
            id="templatesCombo" 
            dataProvider="{lendersModel.fileTemplateComposites}"
            prompt="Select Template" 
            width="200" 
            labelFunction="getTemplateName"
            change="onViewTempComboChange(event)"
            updateComplete="checkTemplatesLength(event);"/>

Here’s the handler:

private function checkTemplatesLength( event:FlexEvent ):void{
            if( lendersModel.fileTemplateComposites.length == 1 ){
                this.templatesCombo.selectedIndex = 1;
                this.currentFileTemplate = templatesCombo.selectedItem as FileTemplateCompositeDTO;
                this.templateActions_bb.updateButtonVisibility( 2, true  ); // disable delete button
            }
            var cb:ComboBox = ComboBox( event.currentTarget )
            cb.removeEventListener( FlexEvent.UPDATE_COMPLETE, checkTemplatesLength );
        }

What am I missing? I thought this is how to do it from other posts I’ve read here.

Any tips will be greatly appreciated.

Thanks!

Answer 1

maybe it’s not attached as an event listener in the first place?! but i’m sure it works this way:

private var cb:ComboBox;

private function init():void {
    cb = // get the right combobox
    cb.addEventListener(FlexEvent.UPDATE_COMPLETE, checkTemplatesLength);
}

private function checkTemplatesLength( event:FlexEvent ):void{
    if (lendersModel.fileTemplateComposites.length == 1 ){
        this.templatesCombo.selectedIndex = 1;
        this.currentFileTemplate = templatesCombo.selectedItem as FileTemplateCompositeDTO;
        this.templateActions_bb.updateButtonVisibility( 2, true  ); // disable delete button
    }
    cb.removeEventListener( FlexEvent.UPDATE_COMPLETE, checkTemplatesLength );
}