Accessing Flex’s objects by id

Question

I have a datagrid which has id="myGrid" in my application, from it I call a component. Now from the component I can call parentDocument.myGrid.selectedIndex = 0; and it works fine.

But I want to make the component reusable, and I would like to pass the ID to the component each time, so myGrid will change, how to properly send the ID to the component, and use it in the component?

Answer 1

1. create a new MXML component and put all your DataGrid code inside
2. user the new component instead of the datagrid and assign different ids

Answer 2

I would extend the DataGrid to add the new property that you can pass in. When creating a new component, there is an option to "extend" an existing component; so just extend the DataGrid. This will give you all the properties of the DataGrid. The property can be something like this:

public var myParentDoc : UICpomponent;

However, since you didn't explain what you're doing, I'm not sure I completely understand how you're using parentDocument or for what purpose. Where in your DataGrid are you using parentDocument? In an eventListener? Or in an itemRenderer?