asked on 5/18/2011

passing label value on view click

hi guys
I am tring to pass a label from outer mxml to inner mxml

I have a view stack like this
<mx:ViewStack id="workflowViewStack" width="100%" borderColor="#000000" cornerRadius="4" selectedIndex="{modelviewdata.workflowviewstate}">
<workflowNavigation:WorkflowView label="{(modelviewdata.doesWorkflowExist == false ? 'Create New Profile' : (modelviewdata.showWorkFlow == true ? modelviewdata.selectedWorkflowid : ''))}" height="3000" width="3000" />
</mx:ViewStack>

this is my WorkflowView.mxml. When WorkflowView is clicked i want to invoke the init() function and pass the label value to it.

WorkflowView.mxml
<?xml version="1.0" encoding="utf-8"?>
<mx:VBox xmlns:mx="http://www.adobe.com/2006/mxml"
xmlns:viewStackEffects="org.efflex.mx.viewStackEffects.*"
borderStyle="none" height="2000" xmlns:buttons="com.ms.ewq.view.component.buttons.*"
creationComplete="init()">
..
<mx:Script>

<![CDATA[
private function init():void {
here i want to pass the lable value to WorkflowSearchEvent
mx.controls.Alert.show("label",label);
var workflowevent:WorkflowSearchEvent = new WorkflowSearchEvent(label);
workflowevent.dispatch();
}

any idea?
thanks

Apache Flex

Last Comment

Jay Roy

5/23/2011

dgofman

5/18/2011

Implementation is not the best and wrong

You should dispatch from child an event

http://livedocs.adobe.com/flex/3/html/help.html?content=mxmlcomponents_advanced_4.html

this.dispatchEvent(workflowevent);

By before add a metadata in your MXML for handle this event from outside

Lets believe you have class com.mycompany.events.WorkflowSearchEvent
And event type is “searchEvent”
In this case client MXML declaration will be
<mx:Metadata>
[Event(name=" searchEvent ", type="com.mycompany.events.WorkflowSearchEvent ")]
</mx:Metadata>

Now you can handle this event from a parent class

<workflowNavigation:WorkflowView searchEvent=”onSearchEvent(event) " ..

Private var onSearchEvent(event: WorkflowSearchEvent):void{

By before add a metadata in your MXML for handle this event from outside

Lets beleive you have class com.mycompany.events.WorkflowSearchEvent
<mx:Metadata>
[Event(name="eventName", type="eventType")]
</mx:Metadata>

dgofman

5/18/2011

Another option you can call the parent class function and pass label

parentDocument.setLabel(label);

You just need to implement "public function setLabel(value:String):void" in your parent class

Jay Roy

5/19/2011

ASKER

hi
i am trying to understand your code, here are the changes i made
in my parent i added
parent.mxml

public function onSearchEvent(event: WorkflowSearchEvent):void{
var workflowevent:WorkflowSearchEvent = new WorkflowSearchEvent(this.label);
workflowevent.dispatch();
}
<workflowNavigation:WorkflowView label="{(modelviewdata.doesWorkflowExist == false ? 'Create New Profile' : (modelviewdata.showWorkFlow == true ? modelviewdata.selectedWorkflowid : ''))}"
height="3000" width="3000" searchEvent="onSearchEvent(event)" />

In WorkflowView.mxml i added
<mx:Metadata>
[Event(name="searchEvent", type="com.ms.ewq.Events.Workflow.WorkflowSearchEvent")]
</mx:Metadata>

am i correct?
thanks

ASKER CERTIFIED SOLUTION

dgofman

5/20/2011

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Jay Roy

5/23/2011

ASKER

hi...
what is meant by this>>>workflowevent.label = "My Label";

what should My Label be?

thanks