The CellWidget module allows a Cell to contain a Dojo Widget (Dijit). The decorator may return HTML which is parsed by the Dijit parser to create the widget. For example

decorator: function(){
   return [
      '<span data-dojo-type="dijit.form.CheckBox" ',
      'data-dojo-attach-point="cb" ',
      'data-dojo-props="readOnly: true"',
      '></span>'
   ].join('');
},

would create a checkbox widget. Make sure that you also set the property widgetsInCell to be true. To set a value within the widget, the column descriptor has a method called setCellValue(gridData, storeData, widget) added to it. When this function is called, it is the responsibility of the function to set the widget to contain the data value. Notice that in the widget description, we can add the data-dojo-attach-point option. This creates a variable which can be accessed in the setCellValue callback through this.<variableName>. This will be the object reference to the new widget.