How do I call a Function inside of a MXML component from a main application?

Posted on 2009-04-30
Medium Priority
Last Modified: 2012-05-06
I have a main application and with two custom components. Both components have already been instantiated. Lets call the Components A and B. I am am dispatching an event up from Compenent A and capturning it inthe main application. I want to take the data and pass it into Component B. i am new to flex and am having a hard time exposing functions to do this. Can you help a newbie out?
Question by:20lbMonkey
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Expert Comment

ID: 24276690
Okay.. Assuming we are in the main Application and component 1's id is c1 and component 2's id is c2.

// Calling c1's public method

// Calling c2's method assuming c2 lies inside c1

Remember only public methods can be called from outside. Did this help?
LVL 37

Accepted Solution

zzynx earned 2000 total points
ID: 24285767
>> Lets call the Components A and B.
That means that you have given the instances of those MXML components these id's:

<...  id="A"  ... >
<...  id="B"  ... >

>> I am dispatching an event up from Compenent A and capturning it in the main application.
>> I want to take the data and pass it into Component B

Well, the function in the main application triggered when A dispatches the event will contain:

        B.data = A.data;

This line first calls this getter method that is part of A:

public function get data():Object {
     return myData;

and uses the value of it to pass it to the setter method that is part of B:

public function set data(value:Object) {
    _myDataVariable = value;

Remark: I used the universal 'Object' as type but it could be whatever you like/need

Author Closing Comment

ID: 31576678
Thanks this is great!
LVL 37

Expert Comment

ID: 24292894
You're welcome.
Thanx 4 axxepting
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Expert Comment

ID: 24292936

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