ActionCell already returns false for handlesSelection(). If a cell
declares to handle the selection, the default way of (de)selecting, by
clicking in the row, does not work anymore. Then it is the value-
updater's task to do so. I recently wrote something about it in a blog
post. See for more information: 
http://thoughtsofthree.com/2011/02/creating-a-gwt-radiobuttoncell/
(paragraph "Depending on and handling the selection")

On Feb 22, 5:30 am, Patrick Tucker <tucker...@gmail.com> wrote:
> I haven't played with this a whole bunch but have you looked at
> handlesSelection?  I was under the impression that by setting this to
> false you indicate that a particular cell type  is not allowed to
> determine selection state?
>
> Like if you have a checkboxcell it can be the only cell that
> determines whether or not the row is selected.
>
> On Feb 11, 2:09 pm, "Henry H." <djhenr...@gmail.com> wrote:
>
>
>
>
>
>
>
> > yeah, i had the feeling i have to ditch the selectionModel.
> > thanks for your help...
>
> > On Feb 11, 6:28 am, Thomas Visser <thomas.vis...@gmail.com> wrote:
>
> > > This is not possible. In your case, the click event is always also
> > > given to the SelectionModel.
>
> > > See line 971 in CellTable (http://www.google.com/codesearch/p?
> > > hl=en#A1edwVHBClQ/user/src/com/google/gwt/user/cellview/client/
> > > CellTable.java&q=CellTable%20package:http://google-web-toolkit
> > > %5C.googlecode%5C.com&sa=N&cd=1&ct=rc):
>
> > > if (selectionModel != null && "click".equals(eventType) && !
> > > handlesSelection) {
> > >         selectionModel.setSelected(value, true);
>
> > > }
>
> > > As you can see, if you could make the handlesSelection boolean true,
> > > the selectionModel will not be updated. This boolean is true if one
> > > (or more) cell(s) declare(s) to handle the selection. ActionCell does
> > > not do that. What you can do is create your own cell, make it handle
> > > the selection, and use it for all the columns that you want to be
> > > clickable.
>
> > > On Feb 11, 1:42 am, "Henry H." <djhenr...@gmail.com> wrote:
>
> > > > hi,
> > > > i have a celltable with a selectionModel but also a column of
> > > > actioncells.
> > > > the selectionModel and actioncells both handle click events, but when
> > > > i click the action cell, it also triggers the selectionmodel click
> > > > handler.
> > > > is it possible to prevent this? Or do i have to nix the selectionModel
> > > > and go with clickable cells on the row?
>
> > > > thanks.

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