You can use represent

db.table.field = lambda value, row: 
SPAN(value[:10],DIV(value,_class='tooltip'))

and than JS

jQuery(function(){
   jQuery('.tootip').each(function(){
      var t = jQuery(this); 
      t.hide().css('position','relative').css('z-index','200');
      t.parent.mouseover(function() {t.fadeIn();}); 
      t.parent.mouseout(function() {t.fadeOut();});      
   });
});

Mind I did not try it.

On Tuesday, 24 September 2013 15:21:31 UTC-5, wb wrote:
>
> With some fields truncated in a grid, it would be nice to show the full 
> value in a tooltip when the mouse is over it.  Offhand, I think that 
> will take a calculated field.  Is there an example anywhere?  For that 
> matter, examples of general examples of grid use would be really nice. 
>
> Thanks! 
>

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