code: function(suppressEvent) {
          var me = this,
              selections = me.store.getRange(),
              i = 0,
              len = selections.length,
              start = me.getSelection().length;
  
          me.bulkChange = true;
          for (; i < len; i++) {
              me.doSelect(selections[i], true, suppressEvent);
          }
          delete me.bulkChange;
          // fire selection change only if the number of selections differs
          me.maybeFireSelectionChange(me.getSelection().length !== start);
      }
docs: Selects all records in the view.
  @param {Boolean} suppressEvent True to suppress any select events