code: function(oArgs) {
      var sMode = this.get("selectionMode");
      if(sMode == "cellblock") {
          this._handleCellBlockSelectionByMouse(oArgs);
      }
      else if(sMode == "cellrange") {
          this._handleCellRangeSelectionByMouse(oArgs);
      }
      else {
          this._handleSingleCellSelectionByMouse(oArgs);
      }
  }
docs: Overridable custom event handler to select cell.
  
  @method onEventSelectCell
  @param oArgs.event {HTMLEvent} Event object.
  @param oArgs.target {HTMLElement} Target element.