关于'radio'的简单问题

Question

items: {
xtype: 'fieldset',
title: 'Individual Radios',
autoHeight: true,

        defaultType: 'radio', // each item will be a radio button
        items: [{
            xtype: 'textfield',
            name: 'txt-test2',
            fieldLabel: 'Alignment Test'
        }, {

            fieldLabel: 'Favorite Color',
            boxLabel: 'Red',
            name: 'fav-color',
            inputValue: 'red'
        }, {
            fieldLabel: '',
            labelSeparator: '',
            boxLabel: 'Blue',
            name: 'fav-color',
            inputValue: 'blue'
        }, {
            fieldLabel: '',
            labelSeparator: '',
            boxLabel: 'Green',
            name: 'fav-color',
            inputValue: 'green'
        }]
    }

在客户端验证时单选框不能为空.应该怎么写.
allowBlank: false,找了半天我也不知道加在什么地方
[b]问题补充：[/b]
需求就是没有默认数值...怎么搞啊

Answer 1

都说了,用radiogroup....
示例代码:

[code="javascript"]
Ext.onReady(function(){
Ext.BLANK_IMAGE_URL = '/images/s.gif';
Ext.QuickTips.init();
testFormValid();
});
function testFormValid(){
var f = new Ext.form.FormPanel({
height:300,
width:500,
renderTo:document.body,
items:[
{
xtype: 'radiogroup',
fieldLabel: 'Auto Layout',
allowBlank:false,
items: [
{boxLabel: 'Item 1', name: 'rb-auto', inputValue: 1},
{boxLabel: 'Item 2', name: 'rb-auto', inputValue: 2},
{boxLabel: 'Item 3', name: 'rb-auto', inputValue: 3},
{boxLabel: 'Item 4', name: 'rb-auto', inputValue: 4},
{boxLabel: 'Item 5', name: 'rb-auto', inputValue: 5}
]
},
{
xtype:'button',
text:'submit',
handler:function(){
f.getForm().submit({
url: 'updateConsignment.php',
clientValidation: true,
failure: function(form, action) {
switch (action.failureType) {
case Ext.form.Action.CLIENT_INVALID:
Ext.Msg.alert('失败', '验证失败');
break;
}
}
})
}
}
]
});
}
[/code]