code: function(oArgs) {
  //TODO: support form elements in sortable columns
      var evt = oArgs.event;
      var target = oArgs.target;
  
      var el = this.getThEl(target) || this.getTdEl(target);
      if(el) {
          var oColumn = this.getColumn(el);
          if(oColumn.sortable) {
              Ev.stopEvent(evt);
              this.sortColumn(oColumn);
          }
      }
      else {
      }
  }
docs: ///////////////////////////////////////////////////////////////////////////  Public Custom Event Handlers  /////////////////////////////////////////////////////////////////////////// 
  Overridable custom event handler to sort Column.
  
  @method onEventSortColumn
  @param oArgs.event {HTMLEvent} Event object.
  @param oArgs.target {HTMLElement} Target element.