Re: [flexcoders] Getting a DataGrid item renderer instance

[Jeremy Lu]

There are many possible ways to approach these two problems, depends on what you want to achive.

A basic approach is : item renderer usually implement several
interfaces, like IListData and a bunch of others, two most important
methods are data() and listData().

If you implement these two methods, there will be an automated-chain
between the item renderer and  the unlerlying data, so whenever
the dataprovider changes, new value will be passed into each item
renderer.

In your case, you might not really need to get the reference of the
item renderer by row(index), you just want the image item renderer to
do something accordingly ?

If so, let both of the columns (item renderer) set data back to the
underlying dataprovider then let data() and listData() do the job
should be enough.

Jeremy.
On 6/19/06, flex8it <[EMAIL PROTECTED]> wrote:









  


    
            I have simple datagrid with 2 columns and 2 rows like this:

column 0   column 1
--------   ---------
image      textfield
image      textfield

Column 0 contains my ImageRenderer component.
Column 1 contains the DataGrid's default item renderer and editor: 
text, textfield.

First Problem:
How do I identify/get a reference to a particular instance of my 
ImageRenderer from, say, column[0], row[1]?

Second (related) Problem:
How do I get the ImageRender instance that corresponds to the row of 
the textfield that fires an event when edited?

I've been wrestling with this problem for days now, and I just can't 
seem to get a grasp on the communication/eventing infrastructure 
that's probably necessary to pull this off. Please help.

Thanks,
Bruce 


      

    
    












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