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From: OmPrakash Muppirala <bigosmallm@gmail.com>
Date: Mon, 15 Jul 2013 11:25:47 -0700
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Subject: Re: Activate a cell for editing
To: users@flex.apache.org
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On Mon, Jul 15, 2013 at 11:17 AM, Jesse Ward-Karet <jwk@tanium.com> wrote:

> I haven't done much with Spark data grid. In a Spark list, you just create
> a custom item renderer and set 'autoDrawBackground' to false. If you want
> to handle any of the various selection states you can add them to your
> ItemRenderer.
>
> I actually don't do it that way anymore myself. I found I wanted more
> separation between item renderer and look/feel, so I created a class:
>
> public calls SkinnableItemRenderer extends SkinnableComponent implements
> IItemRenderer, IDataRenderer
>
> This allows me to create standard spark skins for my item renderer classes.
>
> It is basically a copy of spark.components.supportClasses.ItemRenderer
> with support for autodrawbackground removed. In replacement, it
> instantiates an InteractionStateDetector on creation and whenever the
> interaction state changes it calls invalidateRendererSkin().  In
> invalidateRendererSkin(), make sure to invalidateSkinState(), and in
> getCurrentSkinState(), you can use the state detector to check for the OVER
> state.  My getCurrentSkinState() supports all the 'built in' states, i.e.
> dragging, selectedAndShowsCaret, hoveredAndShowsCaret... etc.
>
> I have another class, SkinnabledEditableItemRenderer that extends the
> available states to include editing states.
>
> Hope that helps.
>
>
This is a pretty good approach as well.  Except for Spark DataGrid, you
will want extend the GridItemRenderer component.  This component gives you
access to the Grid related properties.


>
> On Jul 15, 2013, at 10:33 AM, OmPrakash Muppirala <bigosmallm@gmail.com>
> wrote:
>
> > One way to do it is to attach a selectionChanging event handler to the
> > Spark Datagrid.  In that handler, simply call event.preventDefault()
> >
> > Please keep in mind that there may be other side effects to doing this,
> so
> > consult the documentation [1] before trying this :-)
> >
> > Thanks,
> > Om
> >
> > [1]
> >
> http://flex.apache.org/asdoc/spark/components/DataGrid.html#event:selectionChanging
> >
> > On Mon, Jul 15, 2013 at 10:01 AM, mark goldin <markzolotoy@gmail.com>
> wrote:
> >
> >> How do I do "disable auto drawing of the selected/hover states"?
> >>
> >>
> >> On Mon, Jul 15, 2013 at 11:41 AM, Jesse Ward-Karet <jwk@tanium.com>
> wrote:
> >>
> >>> Why not allow selection but just disable auto drawing of the
> >>> selected/hover states? Then use an editable item renderer.
> >>>
> >>> On Jul 15, 2013, at 8:23 AM, mark goldin <markzolotoy@gmail.com>
> wrote:
> >>>
> >>>> I am working on data editing in Spark dataGrid. Trying to come up with
> >> a
> >>>> solution where I can use selectionMode="none" but still be able to
> >>> activate
> >>>> editing in a cell.
> >>>>
> >>>> Thanks
> >>>
> >>
>
>

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