如何在网格面板中显示" - "代替空值

Question

如何在网格面板代码中显示' - '代替空值 -

var store = Ext.getStore('someStore');
store.each(function (rec) {
    if(rec.get('comment')=="") {
        //what code i will write here to edit that cell with '-'
    }

});

Answer 1

您可以尝试将列渲染器添加到网格中.

{ 
  text: 'Comments', 
  dataIndex: 'comment', 
  renderer: function(value, metaData, record, row, col, store, gridView) {
    if (record.get('comment') == "") {
      return "-";
    } else {
      return record.get('comment');
    }
  }
}

有关更多详细信息,请查看ExtJS API中的Column renderer.