I think I understand what you are saying.
But I am already extending Flex' s native DataGrid. I thought I could have
added a custom method somehow without creating as many classes as many grids I
am going to have in my project. Am I understanding you correctly? I will need
to extend my base DataGrid for each object in my project?
Frederico Garcia <[EMAIL PROTECTED]> wrote:
mark goldin escreveu:
> Yes, I can create a generic method for my Grid:
> public function doSomethingAfterRowIsAdded():void
> {
> }
> But I can't have any code there because it is specific to an object
> instatiation.
>
>
> */Frederico Garcia <[EMAIL PROTECTED]>/* wrote:
>
> markgoldin_2000 escreveu:
> > I am designing a custom ListGrid. Most of functionality will be
> in the
> > base class. But some will deppend on a specific instatiation. For
> > example, when new row is added to the ListGrid I need to run
> additional
> > code for each object being instatiated from the base class. And
> that
> > code is unique for each object. Any idea how set this up properly
> > meaning keeping everything as generic as possible.
> >
> > Thanks
> >
> >
> >
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> Maybe you could create a function on every object always with the
> same
> name, and when you had a object to the list you check if th function
> exists. If it does you execute it, else you do nothing. You can
> see the
> same principle in clonable objects (having a function called
> /clone()/)
>
> Regards,
>
> Frederico Garcia
>
>
>
>
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What I meant was having a function on the Object added to the grid, not
on the grid itself. Something like this:
public class CustomGrid extends DataGrid {
(...)
override public function addElement(value:Object):void {
super.addElement(value);
executeCustomCode(value);
}
public function executeCustomCode(value:Object):void {
try {
value.customFunction();
}
catch(error:TypeError) {
// ADD YOUR DEFAULT CODE HERE
}
}
}
The syntax is not correct but it gives you the big picture. To improve
this you could had a listener on /added/ to the dataProvider that
triggered the executeCustomCode function.
Hope this helps,
Frederico Garcia
