My bad. The description might have been insufficient. I have an overwritten multiselection model because I want to select multiple items. I'm not sure if this makes any difference but I mentioned it just in case.
My problem is how to tick check box when I click on the imageCell when the item is already selected. So once again. I know how to select an item and tick the checkBox by clicking on the image cell - I use custom eventTranslator and make the hasCell with a single checkBox depending on selection and not handle selection on it's own. Now I replaced the hasCell with single checkBoxCell with hasCell containing a cell made of 3 custom checkBoxes ( I added a name attribute describing resolution so that I know which one was selected when change event is fired). I added lastChanged property to the underlying object to remember what fired the event. I set the property in eventTranslator. I want the item to be selected and backgroud color changed if at least one of the checkBoxes is ticked=> unticking single checkbox doesn't necessarily lead to deselecting an item. I also want it to be selected when the imageCell is clicked. In that case the default checkBox should be ticked. Clicking on checkBoxes to select image is simple. I can click on the imageCell and tick the default resolution this way but only if the item hasn't been selected yet. If it's already selected the cell is not rerendered . I thought that the problem was in selectionModel.resolveChanges if (selected) { if (oldValue == null || !oldValue.equals(object)) { ...... It only fired event if there was no selection or other item had been selected. I needed it to fire a changeEvent if other checkBox in the same item was ticked. In other words when property not the object changed. So I replaced that code with if (oldValue == null || object.lastChange()!= null) So my model is firing the event now but it gets lost somewhere. The cellList isn't calling renderRowValues => the cell isn't re-rendered=> box isn't ticked To sum up hacking things is never good idea and my solution doesn't work. How should I implement this properly? regards -- You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.