Put a ClickableTextCell in Header. Override  onBrowserEvent() method
in Header class.  Try the code below.

//code segement

 Header<String> header = new Header<String>(new ClickableTextCell())
 {
      @Override
      public String getValue()
      {
            return "your_header_name";
      }

     Command command = new Command()
      {
          public void execute()
          {
              Window.alert("clicked");
          }
      };

      @Override
      public void onBrowserEvent(Context context, Element parent,
NativeEvent event)
      {
        MenuBar menuBar = new MenuBar();
        MenuItem fileName = new MenuItem("New",command);
        menuBar.addItem(fileName);
        menuBar.setSize("10px", "10ex");
      }

    };

   //add your header to celltable
    cellTable.addColumn(your_column_name, header);

S. Abraham
www.DataStoreGwt.com
Persist objects directly in GAE

On Sep 27, 4:08 pm, Brito <britoscho...@gmail.com> wrote:
> I wana add menu on header of celltable.

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