R – flex air datagrid itemRenderer

actionscript-3airapache-flex

I have a datagrid with custom itemRenderer. When I click in a cell, I get its reference. Now I would like to get the reference of the other column in the sae row.
e.g.
In the datagrid I have clicked in 4th column of the 3rd row, I am getting reference of it no problem in that. Now I would like to get the reference of 1st column of the same row i.e 3rd.

Is there a way?

Thanks.

Best Answer

Your custom item renderers should be data driven. In other words everything you care about should be on the renderer's "data" property. If you need to manipulate another cell, you should manipulate the data for the row, and the cell should update itself.

That's the reason you're having a hard time with that -- there isn't a good way to grab a reference to another cell. There are bad ways, but they're bad :)

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Actionscript – Flex dataGrid itemRenderer, access cell width and height

All flex components including cell renderers are aware of their own widths and heights, so you should be able to just access this.width and this.height

If you're looking for events that tell you when a cell has resized you can listen to the ResizeEvent.RESIZE event or override protected function updateDisplayList(unscaledWidth:Number, unscaledHeight:Number):void on the component.

R – flex datagrid focus cell

If you're using a custom itemRenderer, can you have the searchable text for it be derived from the data property? This way you can just set the dataProvider for the dataGrid and search that.

<mx:itemRenderer>
    <mx:Component>
        <ns1:customTextBox searchedText={data.searchedText} text={data.text}/>    
    </mx:Component>
</mx:itemRenderer>

Then you modify data.searchedText, which is linked to your dataProvider (remember to use an ArrayCollection so it will respond to dataChange events).

Best Answer

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Actionscript – Flex dataGrid itemRenderer, access cell width and height

R – flex datagrid focus cell

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