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我有一個tabpanel由Ext.container.ViewPort內部的以下代碼創建, 我該如何動態更改html?更改由xtype創建的tabpanel的HTML(Ext.js 4.2)
region: 'center',
xtype: 'tabpanel', // TabPanel itself has no title
id:'contentpanel',
activeTab: 0, // First tab active by default
items: {
title: 'Default Tab',
html: 'The first tab\'s content. Others may be added dynamically'
}