如何顯示「 - 」代替空值的網格面板

Question

如何顯示「 - 」代替空值的網格面板 代碼這裏 -

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

你可以嘗試添加一列渲染器到您的網格。

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

查看Column renderer in the ExtJS API瞭解更多詳情。