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In Flex, how do I reference a variable in a custom component?

Posted on 2011-02-15
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Last Modified: 2012-05-11
I have a custom component that I am importing in my main.mxml file. In the main.mxml file I create a public var arraycollection. How do I reference values from the arraycollection in the custom component?

Creates array collection in main.mxml:

for (var i:int=0; i<nMastDaysSch; i++) {
	var catchMastDaySch:Object = new Object();
	catchMastDaySch.id = aMastDaysSch[i][0]
	catchMastDaySch.dateS = aMastDaysSch[i][1]
	catchMastDaySch.weekN = aMastDaysSch[i][2];
	catchMastDaySch.day_name = aMastDaysSch[i][3];
	catchMastDaySch.status = aMastDaysSch[i][4];
	catchMastDaySch.notes = aMastDaysSch[i][5];
	acMastDaySch.addItem(i);
}

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adds custom components in main.mxml:

<s:DataGroup id="showDays" dataProvider="{acMastDaySch}" itemRenderer="myComps.schedulingComps.MastSchDayPanel" width="1165" height="480">
	<s:layout>
		<s:HorizontalLayout/>
	</s:layout>
</s:DataGroup>

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in the custom component file:
<s:Panel id="myPan1" width="250" height="480" chromeColor="#B8CCBB" title="{acMastDaySch.day_name}">

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This throws an error.
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Question by:skibama1
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ChristoferDutz earned 500 total points
ID: 34901551
Ok, I think I will be able to assist you with this one.

If your custom component is somehow related to DataRenderer, then is automatically possesses a "data" property which is automatically set by the container.

I would suggest you change your custom component to the following (notice the "data" instead of the "acMastDaySch"):
<s:ItemRenderer>
    <s:Panel id="myPan1" width="250" height="480" chromeColor="#B8CCBB" title="{data.day_name}">
</s:ItemRenderer>

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If you use this, you should be able to do what you want.
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