我试图为网格中的每一列编写一个特定的工具提示。
我当前的实现无法获取悬停在上面的记录的值。如何引用行条目的特定列/行值?
fiddle
代码
Ext.onReady(function() {
var trackStore = new Ext.data.Store({
storeId: 'soundCloudStore',
proxy: {
type: 'memory',
data: [
{
title: 'Test', duration: '3434', genre: 'stuff', created_at: '2011/06/18', id: '1'
}
]
},
fields:['duration', 'genre', 'created_at', 'title', 'id']
});
trackStore.load(
function() {
Ext.create('Ext.grid.Panel', {
title: 'Tracks',
store: trackStore,
stripeRows: false,
columns: [
{
header: 'Title',
dataIndex: 'title'
},
{ header: 'Duration', dataIndex: 'duration' },
{ header: 'Genre', dataIndex: 'genre' },
{ header: 'Created At', dataIndex: 'created_at'}
],
height: 200,
width: 475,
renderTo: Ext.getBody(),
listeners: {
afterrender: function( )
{
view = this.getView();
view.tip = Ext.create('Ext.tip.ToolTip', {
target: view.el,
delegate: view.itemSelector,
trackMouse: true,
renderTo: Ext.getBody(),
listeners: {
beforeshow: function updateTipBody(tip) {
tip.update(this.data.title);
}
}
});
}
}
});
});
});
误差
Uncaught TypeError: Cannot read property 'title' of undefined