code: function() {
      // Normalize to array
      var originalValues = lang.isArray(this.value) ? this.value : [this.value];
      
      // Match checks to value
      for(var i=0, j=this.checkboxes.length; i<j; i++) {
          this.checkboxes[i].checked = false;
          for(var k=0, len=originalValues.length; k<len; k++) {
              if(this.checkboxes[i].value === originalValues[k]) {
                  this.checkboxes[i].checked = true;
              }
          }
      }
  }
docs: Resets CheckboxCellEditor UI to initial state.
  
  @method resetForm