我有下一个代码:
Ext.create('Ext.form.Panel', {
fullscreen: true,
items: [
{
xtype: 'fieldset',
title: 'Select',
items: [
{
xtype: 'selectfield',
label: 'Choose one',
options: [
{text: 'First Option', value: 'first'},
{text: 'Second Option', value: 'second'},
{text: 'This is a long text to test the selectfield', value: 'third'}
]
}
]
}
]
});
我想更改选择字段的宽度,因为第三个选项很长。