Comments on: Disable selection on some items in a spark List

By: Steven Shongrunden

Steven Shongrunden — Sat, 26 Mar 2011 06:06:01 +0000

If people try using this code in Flex Hero (4.5) you will need to add an additional changeCaret parameter to the setSelectedIndex/setSelectedIndices method signature:

override mx_internal function setSelectedIndex(value:int, dispatchChangeEvent:Boolean = false, changeCaret:Boolean = true):void
…
override mx_internal function setSelectedIndices(value:Vector., dispatchChangeEvent:Boolean = false, changeCaret:Boolean = true):void
…

By: Tink

Tink — Tue, 25 May 2010 14:10:24 +0000

ez Steve

I’ve updated mine and stuck a post here http://www.tink.ws/blog/flex-4-excludeselectionlist/.

It should be easy enough to use in the skin for a DropDownList to achieve the same results.

By: Flex 4: ExcludeSelectionList | Flash Player roundup

Flex 4: ExcludeSelectionList | Flash Player roundup — Fri, 14 May 2010 14:01:36 +0000

[...] tink.ws: This component was in part inspired by some work Steven Shongrunden had done and a task that we had on a [...]

By: Tink » Blog Archive » Flex 4: ExcludeSelectionList

Tink » Blog Archive » Flex 4: ExcludeSelectionList — Thu, 13 May 2010 16:06:16 +0000

[...] component was in part inspired by some work Steven Shongrunden had done and a task that I had for a [...]

By: Steven Shongrunden

Steven Shongrunden — Fri, 07 May 2010 20:47:05 +0000

@Tink - Cool, thanks for sharing the link. I also expanded on this a little differently in "Spark DropDownList equivalent of the HTML optgroup tag" by overriding the List's keyDownHandler.

By: Tink

Tink — Fri, 07 May 2010 18:05:33 +0000

I started this based on your class above

The class enables you to specify data types to excluded from the ability to select, meaning you don’t need to have your data items implement an interface or extend a particular class (i.e. have a selectable property).

I also did a bit of extra work inside adjustSelectionAndCaretUponNavigation to make sure that the keyboard worked as expected.

http://code.google.com/p/tink/source/browse/trunk/ws/tink/spark/controls/SelectableExclusionList.as

By: Flexponential » Spark DropDownList equivalent of the HTML optgroup concept

Flexponential » Spark DropDownList equivalent of the HTML optgroup concept — Sun, 31 Jan 2010 20:41:57 +0000

[...] a previous post I demonstrated how to create a custom List that allows some items to not be selectable. Building on [...]

By: Flexponential » Multiple selection in a spark List without the control key

Flexponential » Multiple selection in a spark List without the control key — Sun, 20 Dec 2009 19:44:43 +0000

[...] This sample uses an item renderer function to use a different renderer based on if the item is a heading or not. You can still select these heading items, but the heading renderer doesn’t look any different when it’s selected. Examining the selectedItems property of the List will show that the heading items are actually selected. If you don’t want to allow these items to be selected check out this post. [...]