extjs radiogroup赋值和取值

Ext.override(Ext.form.RadioGroup, ...{   
    getValue: function()...{   
        var v;   
        if (this.rendered) ...{   
            this.items.each(function(item)...{   
                if (!item.getValue())    
                    return true;   
                v = item.getRawValue();   
                return false;   
            });   
        }   
        else ...{   
            for (var k in this.items) ...{   
                if (this.items[k].checked) ...{   
                    v = this.items[k].inputValue;   
                    break;   
                }   
            }   
        }   
        return v;   
    },   
    setValue: function(v)...{   
        if (this.rendered)    
            this.items.each(function(item)...{   
                item.setValue(item.getRawValue() == v);   
            });   
        else ...{   
            for (var k in this.items) ...{   
                this.items[k].checked = this.items[k].inputValue == v;   
            }   
        }   
    }   
});  

//以上代码重载radiogroup组件，封装 getvalue方法 和 setvalue方法，以便radiogroup组件的取值和赋值


var record = Ext.data.Record.create([
    ...{name: "rg",mapping:"rg"},
]);

var myNewRecord = new record (...{rg:"2"});

 

 

var radiogroup= new Ext.form.RadioGroup(...{
                fieldLabel : "radioGroup",
                items : [...{
                            boxLabel : '是',
                            inputValue : "1",
                            name : "rg",
                            checked : true
                        }, ...{
                            boxLabel : '否',
                            name : "rg",
                            inputValue : "2"
                        }]
            });

var _formpanel = new Ext.form.FormPanel(...{
        labelAlign : "right",
        labelWidth : 150,
        loadMask : true,
  renderTo:Ext.getBody(),
        frame : true,
        defaults : ...{
            width : 150
        },
        items : [radiogroup],
        buttonAlign : "center",
        buttons : [...{
            text : "获取radioGroup值",
            handler : function() ...{
                alert(_formpanel.getForm().getValues()["rg"] );

            alert(_formpanel.getForm().getValues().rg);
             alert(radiogroup.getValue());//三种方式获取所选值
            }
        },...{
            text : "Set radioGroup值2",
            handler : function() ...{
               radiogroup.setValue(2);//把否选中
            }
        },...{
            text : "Set radioGroup值1",
            handler : function() ...{
               _formpanel.findByType("radiogroup")[0].setValue(1);//把是选中
            }
        },...{
            text : "loadRecord赋值方式",
            handler : function() ...{
               _formpanel.form.loadRecord(myNewRecord);//把否选中
            }
        }]]
    });