eivenchan wrote:I have a class extends the Panel class, and i want to design it in GWT Designer. But when i click the "Design" button, it shows a dialog:
Does GWT Designer support this?
Panel should not
be subclassed. If you want to create a custom widget/panel, you should subclass Composite as stated in Google GWT docs
GWT Designer can be used to edit Composites, EntryPoints, DialogBoxes and PopupPanels. It can't be used to edit Panel subclasses. This is intentional
If you modify your class to be a Composite subclass (containing an Panel), you should be able to edit it using GWT Designer.