我有一个组合框的原型,我试图在运行时设置存储数据。
当我尝试执行此操作时,组合框下的菜单不会呈现(或者它呈现得太小以至于您实际上看不到它)。它在 sencha fiddle 上:
Ext.define('ComboBoxRates',{
extend: 'Ext.data.Store',
alias: 'store.rates',
storeId: 'ratescombo',
fields: ['rate', 'description', 'price' ]
});
Ext.define('ComboPanel',{
extend: 'Ext.panel.Panel',
title: 'Test',
renderTo: Ext.getBody(),
items:[
{
xtype: 'combobox',
editable: false,
displayField: 'description',
valueField: 'price',
}
]
});
Ext.application({
name : 'Fiddle',
launch : function() {
var data = [
{
description: "$105: Standard Registration",
price: "105",
rate: "rate1"
},
{
description: "$125: Non-Member Rate",
price: "125",
rate: "rate2"
},
{
description: "$44: Price for SK tester",
price: "44",
rate: "rate3"
},
{
description: "$11: Another price :O",
price: "11",
rate: "rate5"
}
];
var rates = Ext.create('ComboBoxRates');
rates.setData(data);
// Showing data is loaded into the store
console.group('directly from store instance');
rates.each(function (rate){
console.log(rate.getData());
});
console.groupEnd();
var panel = Ext.create('ComboPanel');
panel.down('combobox').setStore(rates);
// Showing that the data is definitely in the widget's store
console.group('from widget store');
panel.down('combobox').getStore().each(function (rate){
console.log(rate.getData());
});
console.groupEnd();
}
});
我知道数据已加载到组合框的存储中(打开小提琴中的控制台日志),所以我不确定为什么它不能正确渲染。
我知道在这种情况下这似乎很愚蠢,但原型是从网格的小部件列中提取的逻辑,其中每一行都有不同的存储数据。
我还构建了一个具有相同结构的单步回原型,但相同的数据被内联在商店的定义中并且有效:
Ext.define('ComboBoxRates',{
extend: 'Ext.data.Store',
alias: 'store.rates',
storeId: 'ratescombo',
fields: ['rate', 'description', 'price' ],
data: [
{
description: "$105: Standard Registration",
price: "105",
rate: "rate1"
},
{
description: "$125: Non-Member Rate",
price: "125",
rate: "rate2"
},
{
description: "$44: Price for SK tester",
price: "44",
rate: "rate3"
},
{
description: "$11: Another price :O",
price: "11",
rate: "rate5"
}
]
});
Ext.define('ComboPanel',{
extend: 'Ext.panel.Panel',
title: 'Test',
renderTo: Ext.getBody(),
items:[
{
xtype: 'combobox',
editable: false,
displayField: 'description',
valueField: 'price',
}
]
});
Ext.application({
name : 'Fiddle',
launch : function() {
var rates = Ext.create('ComboBoxRates');
var panel = Ext.create('ComboPanel');
panel.down('combobox').setStore(rates);
}
});
我认为 updateLayout 可以解决问题,但事实并非如此。
我的代码有问题吗?有没有办法在运行时设置组合框的值?