Hi John, Thanks for all your help. I take it I won't be able to disable the button? (Not a big deal if so, it's a "nice to have" not a "must have".)
Again, Thanks! Greg On Dec 1, 3:00 pm, John LaBanca <[email protected]> wrote: > Everything you said sounds correct. > > Here is a code snippet that should work: > ButtonCell cell = newButtonCell(); > // Create a column using the ButtonCell. > Column<RowObject, String> column = new Column<RowObject, String>(cell) { > public String getValue(RowObject object) { > return "Show " + object.getListSize(); // Get a String from the object. > }}; > > // Set a fieldupdater. > column.setFieldUpdater(new FieldUpdater<RowObject, String>() { > public void update(int index, RowObject object, String value) { > Window.alert("You clicked " + object.toString()); > }}); > > myCellTable.addColumn(column); > > Thanks, > John LaBanca > [email protected] > > On Wed, Dec 1, 2010 at 3:33 PM, Greg Dougherty > <[email protected]>wrote: > > > Hi John, > > > I'm pretty sure I'm not following you. Here's my understanding: > > > I currently have an ActionCell in an IdentityColumn. You're saying I > > can replace the ActionCell with a ButtonCell. > > I need to have a class implement FieldUpdater<T, C>, and pass that to > > the IdentityColumn that holds my ButtonCell. T is the class of my row > > object. C is ??? > > So you're saying that clicking on the button will fire a ValueChange > > call that will cause my FieldUpdater to have update (int, T, C) > > called, which can then use the T parameter to fire off my command? > > > Other problem: ButtonCell implements Cell<String>. But I need to pass > > it my row object, so that it can change its title based on non-string > > information in the row. (i.e. I want one button that will say "Show > > 'x'", where x is the number of items in a list in the row object, or > > to disable the button and put "Nothing" as the title if the list is > > empty. I don't see how I can do that with a ButtonCell. Am I missing > > something? > > > Thanks, > > > Greg > > > On Dec 1, 1:43 pm, John LaBanca <[email protected]> wrote: > > > ButtonCell triggers a ValueChangeHandler when it is clicked. Add a > > > FieldUpdater to your Column and FieldUpdater#update() will be called. > > > > Thanks, > > > John LaBanca > > > [email protected] > > > > On Wed, Dec 1, 2010 at 2:29 PM, Greg Dougherty > > > <[email protected]>wrote: > > > > > What, then, do I have to implement so that the button will fire an > > > > action when it's clicked. Does this require me to extend ButtonCell? > > > > > Thanks, > > > > Greg > > > > > On Dec 1, 12:48 pm, John LaBanca <[email protected]> wrote: > > > > > You can use a ButtonCell instead. ButtonCell takes a String to > > display > > > > in > > > > > the Button, but otherwise it looks just like ActionCell. > > > > > > Thanks, > > > > > John LaBanca > > > > > [email protected] > > > > > > On Wed, Dec 1, 2010 at 12:30 PM, Greg Dougherty > > > > > <[email protected]>wrote: > > > > > > > Is it possible to change teh title of an ActionCell based on the > > > > > > contents of the row it's in? > > > > > > > It looks like the answer is no, but I figured I'd check here before > > I > > > > > > gave up. > > > > > > > Greg > > > > > > > -- > > > > > > You received this message because you are subscribed to the Google > > > > Groups > > > > > > "Google Web Toolkit" group. > > > > > > To post to this group, send email to > > > > [email protected]. > > > > > > To unsubscribe from this group, send email to > > > > > > [email protected]<google-web-toolkit%[email protected]> > > <google-web-toolkit%[email protected]<google-web-toolkit%[email protected]> > > > > > <google-web-toolkit%[email protected]<google-web-toolkit%[email protected]> > > <google-web-toolkit%[email protected]<google-web-toolkit%[email protected]> > > > > > > > . > > > > > > For more options, visit this group at > > > > > >http://groups.google.com/group/google-web-toolkit?hl=en. > > > > > -- > > > > You received this message because you are subscribed to the Google > > Groups > > > > "Google Web Toolkit" group. > > > > To post to this group, send email to > > [email protected]. > > > > To unsubscribe from this group, send email to > > > > [email protected]<google-web-toolkit%[email protected]> > > <google-web-toolkit%[email protected]<google-web-toolkit%[email protected]> > > > > > . > > > > For more options, visit this group at > > > >http://groups.google.com/group/google-web-toolkit?hl=en. > > > -- > > You received this message because you are subscribed to the Google Groups > > "Google Web Toolkit" group. > > To post to this group, send email to [email protected]. > > To unsubscribe from this group, send email to > > [email protected]<google-web-toolkit%[email protected]> > > . > > For more options, visit this group at > >http://groups.google.com/group/google-web-toolkit?hl=en. -- You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group. 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